Balanced Flue Stove Technical Guide

Transcription

1 Balanced Flue Stove Technical Guide Document No: IN1105 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 1

2 Hearth and Fireplace Requirements Do not be tempted to fit the stove into an unsuitable fireplace. Beyond the requirements of the building regulations and access to facilitate servicing the stove, providing a setting which will complement the stove is not a luxury, it is the practicality of making the most of an investment. A good builder will be able to transform even the most utilitarian of fireplaces, whether altering its proportions to those of the Golden Mean ideal, exposing a wooden lintel, stone or simply removing superfluous detailing for comparatively small costs, and the result will be a pleasure for many years. Golden Mean Side Profile 1/3 2/3 E A B Golden Mean Front View 1 2/3 2/3 D F C Minimum clearance from combustible materials Minimum clearance from non combustible materials A 12" 300mm** 9" 230mm B 6" 150mm** 4" 100mm C 1" 25mm** N/A D 2" 50mm** 2" 50mm E 6" 150mm** 4" 100mm F 12mm of non combustable material. 12mm of non combustable material. Curtains and furnishings should be a minimum of 1m from the stove. The stove can be placed on a combustible floor providing it can support the weight, and providing a non combustible hearth plinth with a minimum thickness of 12mm is utilized. ** The measurements provided are for guidance only. In all installations any surrounding flammable materials must not be allowed to exceed 80 C or a non combustible shield provided in accordance with current regulations. The stove must always stand perfectly level and have sufficient space allowing for service work. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 2

3 Balanced Flue Systems A balanced flue system utilizes a double concentric pipe, the inner one taking away the products of combustion and the outer one bringing the air supply to the stove. This system allows a gas stove to be installed where no flue exists, and because the flue needs very little vertical height to operate, it is often possible to route the flue through the room wall to the outside. With all the air necessary for combustion being supplied through the outer pipe directly from the outside, the room in which the stove is installed needs no ventilation specifically for the stove. The balanced flue system has been designed to give a huge range of installation options, terminating either horizontally or vertically, as illustrated in the diagram below. Deciding on which form the balanced flue should take will very much be constrained by the termination of the flue. Building Regulations lay out definitive guide lines for where a flue can terminate, see the diagram later in this document, and if the building is listed there may be constraints on the position of any terminal and advice should be sort from the appropriate regulatory authority. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 3

4 No Chimney No Problem This document will help you design and your qualified engineer install a suitable balanced flue system for your stove. Following the simple guide lines will allow a balanced flued stove to be fitted in most situations where a conventionally flued stove could not be fitted. Top to Horizontal High Level Flue Kit It is not necessary for the stove to be situated against the outside wall through which the flue will pass, as the versatility of the balanced flue system can allow for considerable lengths of horizontal run of the flue. Top to Vertical High Level Flue Kit The vertical balanced flue system is ideal in situations such as in a newly constructed conservatory where there are no walls through which to pass a horizontal flue. The flue will rise from the stove vertically passing through the roof where it will then terminate with a vertical terminal. Minimum height 2m maximum 30m. Rear to Horizontal Low Level The low level horizontal kit is probably the simplest method of installation and allows you to fit the stove against any suitable outside wall in any room in your property. Maximum horizontal length 440mm, minimum length 310mm. Existing Chimney Adapter Kit The flue kits are also designed to be able to utilize an existing chimney. Properties which are designed with a high thermal efficiency may not allow an air brick to be fitted to supply air to a stove over 7kW input, the balanced flue stove overcomes this requirement as it is a sealed appliance. In some cases the top section of a chimney may have been removed and the versatility of the balanced flue system allows you to use what remains of the chimney using the chimney adapter kit. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 4

5 Location of Outlets from Flues Serving Gas Balanced Flue Stoves. Minimum Separation Distances for Terminals in mm Location Balanced Flue A Below an opening Appliance rated heat input 0-7kw >7-14kw > 14-32kw >32 B Above an opening (1) 0-32kw >32kw C Horizontally to an opening (1) 0-7kw >7-14kw >14kw D Below gutters, soil pipes or drain pipes Minimum Separation Distances for Terminals in mm Location Balanced Flue E Below eaves 300 Q Above the highest point of F Below balcony or car port roof intersection with the roof R Flue should not penetrate shaded area 600 G From a vertical drain pipe or soil 300 pipe S Flue should not penetrate shaded area 200 Note (1) An opening means an openable element, such as an openable window, or a fixed opening such as an air vent. However, in addition, the outlet should not be nearer than 300mm to an opening into the building fabric formed for the purpose of accommodating a built in element, such as a window frame. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 5 H From an internal or external corner or to a boundry alongside the terminal 600 I Above ground,roof or balcony level 300 J From a surface or a boundary facing the terminal 600 K From a terminal facing the terminal 600 L M N From an opening in the car port into the building Vertically from a terminal on the same wall Horizontally from a terminal on the same wall P From a structure on the roof 1500

6 Calculating Flue Aspect Ratios The stove operates correctly only with air flow induced by the flue system being within the defined parameters. To achieve these, the vertical elements of the flue, which induce flue draught and increase the air supply to the stove, must be balanced against the horizontal elements of the flue, which offer resistance to flue draught and reduce the air supply to the stove. The ratio of vertical to horizontal lengths must be calculated to ensure the correct flue draught will be induced by the proposed flue. The difference in height between the top of the stove and the bottom of the terminal determines the vertical height to be used in the calculation. The flue run may necessitate the vertical elements to be separated by several horizontal runs, this is not important, only the total height gain is needed. The horizontal length is often more tedious to determine, but again, it is the total length which needs to be determined, regardless of their being continuous or in stages. Any 90 degree change of direction within the flue will offer resistance to flue draught and each change of direction will offer the same resistance to the flue draught as a horizontal run of 1000mm. For every 45 degree change in direction the resistance is that of a horizontal run of 500mm. BALANCED FLUE ASPECT RATIO DYNAMICS ILLUSTRATED Depending on which direction your flue configuration will take and the model of the stove, a flue reduction plate (FRP) may or may not be required. See pages 24 & 25 for details m vertical = 7m horizontal max m vertical = 3.5m horizontal max. 0 For 1m vertical rise a flue may have a maximum horizontal run of 7m. For each 90 degree bend introduced the horizontal run must be reduced by 1m. For each 45 degree bend introduced the horizontal run must be reduced by 500mm EUROHEAT DISTRIBUTORS (H.B.S) LTD. 6

7 Basic Principle of Balanced Flue Ratios Illustrated Top to Horizontal High Level Example 'A' For a 1m vertical rise a flue can have a maximum of 7m horizontal length Example 'B' Each additional 90 degree bend creates a draught resistance equal to 1m of horizontal length. Therefore in example 'B' the introduction of 2 x 90 degree bends, in a horizontal plain, reduces the maximum horizontal length by 2m. Rear to Horizontal Low Level Example 'C' Flue spigot 0 Min 310mm/ Max 440mm The rear exit flue may have a maximum horizontal run of 440mm from the flue spigot, the minimum length 310mm. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 7

8 Example 1: Top to Horizontal High Level Kit Using the standard top to horizontal high level flue kit only. Cavity wall Standard kit 90 degree long bend Ceramic rope or Fraxfill sealant to prevent draughts 12mm Terminal guard (accessory) Standard kit terminal length T2 Standard kit starter length T1 Sleeve kit (accessory) Minimum 50mm Components used Description Part No. Top to 150mm 180mm HorizontalHigh Level Kit MS91102 MS91103 Sleeve liner MS91065 MS91066 Terminal guard FP767 FP767 Closure bezel MS91033 MS91040 Closure bezel The closure bezel fits around the flue pipe covering the hole through a solid wall giving the installation a clean finish both inside and outside. Solid wall EUROHEAT DISTRIBUTORS (H.B.S) LTD. 8

9 Example 2: Top to Horizontal High Level Kit Taking the attached diagram as an example we can calculate the flue parameters for a top to horizontal flue system. Total Height = A Total Horizontal = B In this example A = 2.8 Metres B = 1.75 Metres Three x 90 degree bends have been used one of which (C) is the standard supply kit bend. This bend is ignored from the calculation as it is presumed it will always be used. The two remaining 90 degree bends increase the horizontal length by two metres. (one metre extra horizontal length per additional 90 degree bend). Total Height A = 2.8 Metres Total Horizontal B = 1.0 Metres In this example there is sufficient vertical rise for the horizontal run, as shown in the graph on page 6. B+B= Total Horizontal B B Standard kit terminal length T2 Accessory 250mm length within wall Accessory short 90 O bend Accessory 1metre length Standard kit long 90 O bend Wall band Accessory short 90 O bend Accessory 500mm length Components used A Total height A Standard kit starter length T1 Description Part No. Quantity Top to 150mm 180mm HorizontalHigh 1 Level Kit MS91102 MS metre length MS91028 MS mm length MS91029 MS mm length MS91030 MS short bend MS91031 MS Wall band MS91052 MS EUROHEAT DISTRIBUTORS (H.B.S) LTD. 9

10 Example 3: Top to Vertical High Level Kit The ratio of vertical to horizontal lengths must be calculated to ensure the correct flue draught will be induced by the proposed flue. Taking the ratio diagram as an example we can calculate the flue parameters for a top to vertical flue system. Total Height = A Total Horizontal = B In this example A = 3.5 Metres B = 1.5 Metres Two x 90deg bends have been used. The two 90 degree bends increase the horizontal length by two metres. (One metre extra horizontal length per additional 90 degree bend). Total height A = 3.5 Metres Total Horizontal B =0.9 Metres In this example there is sufficient vertical rise for the horizontal run, as shown in the illustration on page 6. (accessory) (accessory) Components used Description Part No. Quantity Top to Vertical 150mm 180mm High Level Kit MS91100 MS metre length MS91028 MS mm length MS91029 MS short bend MS91031 MS Wall band MS91052 MS EUROHEAT DISTRIBUTORS (H.B.S) LTD. 10

11 Example 4: Top to Vertical High Level Kit This example incorporates two 45 degree bends, a situation commonly encountered when having to route flue pipe around an obstacle such as a beam. When calculating the horizontal run the 45 degree bends equate to an additional 500mm per bend. Taking the ratio diagram as an example we can calculate the flue parameters for a top to vertical flue system. Total Height = A Total Horizontal = B In this example A = 4.5 Metres B = 1.5 Metres 2 x 45deg bends have been used. The two 45 degree bends increase the horizontal length by one metre. (500mm extra horizontal length per 45 degree bend). Total height A = 4.5 Metres Total Horizontal B = 2.0 Metres In this example there is sufficient vertical rise for the horizontal run, as shown in the illustration on page 6. (accessory) Components used Description Part No. Quantity Top to Vertical 150mm 180mm High Level Kit MS91100 MS metre length MS91028 MS Adjustable length MS91045 MS short bend MS91054 MS Wall band MS91052 MS Roof flashing MS91063 MS EUROHEAT DISTRIBUTORS (H.B.S) LTD. 11

12 Example 5: Top to Vertical High Level Kit The minimum vertical height for a top to vertical flue is two meters of flue and the top to vertical kit components. (accessory) Components used Description Part No. Quantity Top to Vertical 150mm 180mm High Level Kit MS91100 MS metre length MS91028 MS Wall band MS91052 MS Roof flashing MS91063 MS EUROHEAT DISTRIBUTORS (H.B.S) LTD. 12

13 Example 6: Through Ceilings and Roof Spaces Fitting a Top to Vertical High Level Flue Kit Through Ceilings and Roof Spaces When installing balanced flue pipe through a ceiling the use of a ceiling support and fire stop spacer are recommended. There should be no flue joints at any point as the flue passes through a ceiling. There should a minimum clearance of 25mm from the flue pipe to any combustible material. Weight of flue supported here. Roof flashing (accessory) Ceiling support Weight of flue supported here. No flue joints between fire stop spacer and ceiling support. Fire stop spacer Components used Description 150mm 180mm Ceiling support MS91056 MS91057 Fire stop spacer MS91058 MS91059 Roof flashing MS91063 MS91063 Wall band MS91052 MS91053 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 13

14 Example 7: Existing Chimney Adapter Kit Vertical Termination Fitting an Existing Chimney Adapter Kit in Conjunction with a High Level Vertical Kit There are great advantages in converting an existing chimney into a balanced flue. The existing chimney adapter kit can convert either ceramic lined chimneys or an unlined chimney into a balanced flue system. By using this system combustion air is drawn from the outside rather than from the property greatly increasing overall efficiency. In addittion many houses chimney stacks have been removed and the roof tiled over. They are usually capped off at attic floor level. We have developed a kit which can bring these chimneys back to life using a gas balanced flue stove. It can also be used in modern properties which have heat replacement systems where normal ventilation requirements cannot be applied. The system requires the use of two flexible flue liners, one to run inside the other mimicking the standard balanced flue pipe. The inside pipe is for the evacuation of the products of combustion and the outer is the air supply for combustion. It is imperative that all the joints are sealed to make them air tight. There follows two examples of the system, one is showing an existing chimney breast and the system terminating in a vertical position (through the roof). The second is showing the system terminating in a horizontal position (through a gable end of a property perhaps). Existing chimney top adapter Using two sizes of flue liner to mimic the balanced flue pipe. Ensure the seal is tight to the adapter kit Flue system Inner liner Outer liner size 150mm 101mm / 4 153mm / 6 180mm 125mm / 5 178mm / 7 Existing chimney bottom adapter Depending on which direction your flue configuration will take and the model of the stove, a reduction plate may or may not be required. See pages 24 & 25 for details. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 14

15 Example 8: Existing Chimney Adapter Kit Horizontal Termination Fitting an Existing Chimney Adapter Kit in Conjunction with a Top to Horizontal Kit If this orientation is to be used then the standard 90 degree long bend from the top to horizontal kit MUST be used so that the last union before the terminal length T2 is a female (F) end. Accessory 1 metre length Existing chimney top adapter M F T2 Standard kit 90 long bend Standard kit terminal length T2 Existing chimney bottom adapter Clay liner Flexible liner Flue system Inner liner Outer liner size 150mm 101mm / 4 153mm / 6 180mm 125mm / 5 178mm / 7 Existing chimney top adapter M F T1 Standard kit starter length T1 Existing chimney bottom adapter 95mm 75mm 75mm 100mm 350mm 350mm The example above is showing an existing chimney adapter kit utilizing a existing clay liner, using a flexible liner to run inside the clay liner in order to expel the products of combustion but using the clay liner for the feed of combustion air. Ensure that the seals between flexible liner and the adapter are sound and the seal between the clay liner and the adapter are also sound. It can go through the long 90 bend (in the top to horizontal kit) and terminate through the gable end of the property. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 15

16 Example 9: Through a Combustible Roof Installation of Top to Vertical High Level Balanced Flue Pipe Through a Combustible Roof A 25mm gap of non combustible material must be used when you are passing the balanced flue pipe through any combustible material. Conservatories can come alive with the installation of a stove, but care should be taken when installing a stove into a conservatory because the modern ones can be made entirely from plastic (or PVC). Advise from your conservatory installer/manufacturer should be sought. The flue system should be supported. 600mm 600mm 600mm EUROHEAT DISTRIBUTORS (H.B.S) LTD. 16

17 Frequently Asked Questions Q. Can the stove be flued directly off the back? A. Yes, using the standard low level horizontal kit. Q. Can I use a bend directly off the top of the stove? A. No, the stove adapter is only designed to fit the telescopic starter length and straight lengths, bends will not seal to the flue outlet. Q. Can I fit the stove in the corner of a room? A. Yes, there is no problem in doing this using the top to horizontal flue kit, but it must be remembered that if the corner is also the corner of the property that the termination must be 600mm from any corner. See diagram page 5. Q. Can the vertical flue be passed through a combustible roof, such as a polycarbonate roof in a conservatory? A. Yes, as long as allowances are made for the type of roofing material and suitable insulation is provided. See the section on flueing through a combustible roof. Q. Can the stove be fitted into a bedroom? A. Yes, the stoves are room sealed and below 14kW input. Q. Can I cut the lengths of flue pipe? A. Yes, however the differential between the inner and outer length has to be maintained. It would be preferable to use an adjustable length Q. Does the flue terminal need to be guarded? A. If the flue terminal is to be sited less than two meters above level ground, a balcony or a flat roof where people have access, a guard must be fitted. Local by-laws may also require a further minimum height where the terminal is sited adjoining a public footpath. Q. If I have a high level horizontal kit can I then terminate it vertically? A. Yes, there is a vertical terminal with a crimped end which will fit to the flue system. Q. Do I need an air brick or other ventilation for supplying free air to the stove? A. No, the stove is room sealed and does not have any requirement for free air. Vertical terminal with crimped end Size Part No: 150mm MS MM MS91048 Q. Does it matter how far out of the wall the terminal is fitted on a horizontal flue kit? A. Yes, there should be 12mm of flue pipe visible before the start of the flue terminal. Any greater length can upset the balanced flues operation. Q. What colours are the flue pipe available in? A. The flue pipe is supplied in one colour, a matt grey finish, which closely matches the cast finished stoves and complements the enamel finished stove. It is possible to change the colour using heat resistant paint. Q. To what wind speed are the terminals tested to? A. The maximum wind used is 12.5 m/s with 10% error. (28mph). Q. What is the maximum length the flue can travel horizontaly from the rear outlet of the stove? A. The standard low level horizontal flue kit gives a maximum extension of 440mm. No additional lengths or bends should be fitted. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 17

18 Components of Top to Horizontal High Level Kit 150mm kit MS mm kit MS91103 This is a high level horizontal flue kit. Other sections may be added to achieve the desired termination. For additional lengths and accessories see pages 21 to 23. Telescopic terminal length (T2) T2 90 Long bend Clamp band Telescopic starter length (T1) which must be used as the first length of flue pipe from the stoves flue collar T1 Dimensions of standard 150mm flue kit Dimensions of standard 180mm flue kit Max: 555mm Min: 470mm The min can be reduced further by cutting 40mm off the T2 section 12mm T2 Max 555mm Min 445mm The min can be reduced further by cutting 40mm off the T1 section T1 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 18

19 Components of Top to Vertical High Level Kit 150mm kit MS mm kit MS91101 This kit is used when the installation requires the termination to be through a roof. Further components will be required with this kit. For additional lengths and accessories see pages 21 to mm Vertical Terminal Locking Band 250mm T1 Adjustable Starter Pipe Adjustable Starter Pipe Toatal length Minimum Length for Calculations Maximum Length For Calculations 250mm 30mm 170mm EUROHEAT DISTRIBUTORS (H.B.S) LTD. 19

20 Components of Rear to Horizontal Low Level Kit 150mm kit MS mm kit MS91098 Only the standard kit may be used, additional bends and lengths MUST not be used as they will adversely effect the performance of the balanced flue and could be dangerous. Telescopic Module (horizontal adjustable) T1 Minimum Length 310 mm Maximum Length 440 mm Horizontal Terminal Terminal Guard Spacers and self tapping screws for wind shield Wind shield EUROHEAT DISTRIBUTORS (H.B.S) LTD. 20

21 Additional Flue Pipe System Accessories Each section of additional flue pipe is supplied with a locking band. 1 metre pipe 500mm pipe 250mm pipe 90 degree short bend 45 degree short bend Adjustable length 250mm Wall Band When calculating the amount of flue pipe required the usable length and not the overall length should be used, see the table below. Description 150mm 180mm Over all length Useable length 1 metre pipe MS91028 MS m 960mm 500mm pipe MS91029 MS mm 460mm 250mm pipe MS91030 MS mm 210mm 90 Degree bend MS mm vertical 170mm horizontal 90 Degree bend MS mm vertical 186mm horizontal Adjustable pipe MS91045 MS max length 85 min length 45 Degree bend MS91054 MS mm vertical 75mm horizontal 2 x 45 Degree bend off set MS91054 x 2 MS91055 x 2 340mm 150mm off set Wall band MS91052 MS91053 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 21

22 Additional Flue System Accessories Ceiling Support & Fire Stop Spacers Required when a balanced flue kit passes through a ceiling. Ceiling Support Fire Stop Description Part No. 150mm Part No. 180mm Ceiling Support MS91056 MS91057 Fire Stop MS91058 MS91059 Existing Chimney Adapter Kit Allows an existing sound chimney to be used as part of the balanced flue. Description Part No. 150mm Part No. 180mm Existing Chimney Adapter Kit MS91085 MS91086 Sleeve Liner Required when flue pipe passes through a cavity wall. It can be cut down to size or an extender sleeve added. Max 360mm Min 240mm Outer diameter 150mm kit 165mm 180mm kit 195mm Extender sleeve Description Part No. 150mm Part No. 180mm Sleeve Liner MS91065 MS91066 Extender sleeve MS91067 MS91068 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 22 Cavity

23 Additional Flue System Accessories Roof Flashing Required when a balanced flue kit passes through the surface of a roof, flat or pitched. Roof Flashing Description Part No. 150mm kits Part No. 180mm kits Roof Flashing MS91063 MS91063 Terminal Guard The terminal guard is suitable for High-Level Top to Horizontal kits only. The flue outlet should be protected with a guard if persons could come into contact with it or if it could become damaged. If a flue outlet is in a vunerable position, such as where the flue discharges within reach of the ground (less than 2m), or a balcony, veranda or an opening window. Terminal Guard Closure Bezel Closure Bezel The closure bezel fits around the flue pipe covering the hole through the wall and gives the installation a clean finish. Description Part No. 150mm kits Part No. 180mm kits Closure Bezel MS91033 MS91040 Terminal Guard FP767 FP767 Fraxfill Fraxfill is a pliable (tacky putty) white ceramic fibre gap fill supplied in a 300g cartridge for use with a sealant gun. Fraxfill is recommended for applications with operating temperatures of up to 1200 C. Description Part No. 150mm kits Part No. 180mm kits Fraxfill MS9045 MS9045 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 23

24 Flue Reduction Plate (FRP) Before Installation Depending on which direction your flue configuration will take, a reduction plate may or may not be required. The choke plate is a circular plate which fits under the inner flue connection. The list below will advise which FRP will or will not be needed. Harmony 15 Stanford 15 (H15 & S15) Description Fuel Type FRP Top to horizontal high level kit with standard flue kit Natural Gas LPG 58mm 58mm Top to vertical high level kit Natural Gas LPG 40mm 45mm Rear to horizontal low level kit Natural Gas LPG No FRP No FRP Harmony 25 Stanford 25 (H25 & S25) Description Fuel Type FRP Top to horizontal high level kit with standard flue kit Natural Gas LPG 66mm 66mm Top to vertical high level kit Natural Gas LPG 50mm 50mm Rear to horizontal low level kit Natural Gas LPG No FRP No FRP EUROHEAT DISTRIBUTORS (H.B.S) LTD. 24

25 Top flue connection for top to horizontal high level kit and top to vertical kit Rear flue connection for rear to horizontal low level kit Harmony 35 (H35) Description Fuel Type FRP Top to horizontal high level kit with standard flue kit Natural Gas LPG 76mm No FRP Top to vertical high level kit Natural Gas LPG 55mm 55mm Rear to horizontal low level kit Natural Gas LPG No FRP No FRP Harmony 45 (H45) Description Fuel Type FRP Top to horizontal high level kit with standard flue kit Natural Gas LPG 70mm 70mm Top to vertical high level kit Natural Gas LPG 70mm 70mm Rear to horizontal low level kit Natural Gas LPG No FRP No FRP EUROHEAT DISTRIBUTORS (H.B.S) LTD. 25

26 Stove Technical Data Harmony mm Flue kit system and accessories 150mm Flue kit Top to horizontal high level kit Top to vertical high level kit Rear to horizontal low level kit Part No. MS91102 MS91100 MS91097 Harmony mm Flue kit system and accessories 150mm Flue kit Top to horizontal high level kit Top to vertical high level kit Rear to horizontal low level kit Part No. MS91102 MS91100 MS91097 Harmony mm Flue kit system and accessories 180mm Flue kit Top to horizontal high level kit Top to vertical high level kit Rear to horizontal low level kit Part No. MS91103 MS91101 MS91098 Harmony mm Flue kit system and accessories 180mm Flue kit Top to horizontal high level kit Top to vertical high level kit Rear to horizontal low level kit Part No. MS91103 MS91101 MS91098 Stanford mm Flue kit system and accessories ID mm Flue kit Top to horizontal high level kit Top to vertical high level kit Rear to horizontal low level kit Part No. MS91102 MS91100 MS91097 Stanford mm Flue kit system and accessories ID mm Flue kit Top to horizontal high level kit Top to vertical high level kit Rear to horizontal low level kit Part No. MS91102 MS91100 MS91097 EUROHEAT DISTRIBUTORS (H.B.S) LTD. 26

27 Fitting High Level Horizontal Flue Kit The flue system starter length should be sealed to the stove s flue spigot with a heat proof sealant, (we suggest fraxfill, part number MS9045). Apply a bead of heat resistant sealant to the inner face of the outer flue spigot and the outer face of the inner flue pipe. The clamp should be used to secure the first elbow or additional length and the appropriate heat proof tape used to secure the telescopic fitting. Heat proof sealant Heat proof sealant The guide giving the permitted flue configurations must be consulted to verify that a proposed flue is possible. The long 90 bend supplied as standard with the stove must be incorporated into the system to ensure a non crimped end at the last fitting before the termination length T2. Where the flue passes through a cavity wall, the hole must be sleeved for its entire length. Standard kit 90 long bend Standard kit 90 long bend Accessory 90 short bend Accessory 90 short bend Wall band Locking band All joints between the fixed lengths of flue must be secured with locking bands, and every meter in length horizontally or vertically must be supported. It is your responsibility to ensure that no part of the flue installation contravenes any gas or building regulations. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 27

28 Position of Flue Terminal on Outside Wall 12mm The position of the terminal on the outside wall should be 12mm from the edge of the terminal mesh to the face of the outside wall. If it protrudes further than 12mm it may be adversely affected by wind blowing across the terminal so upsetting the balanced flue operation. If it is fitted with less than 12mm clearance then the vented exhaust gases may be drawn back into the balanced flue primary air inlet so adversely effecting the operation of the balanced flue. The flue pipe passing through the wall should be angled slightly downwards (1 degree) towards the terminal so as to stop rain water entering and passing along the flue. 1 incline Horizontal Flue Passing Through a Combustible or Cavity Wall Ceramic rope or Fraxfill sealant to prevent draughts Sleeve liner 12mm 25mm air gap incorporated as part of the Flue System T2 Ceramic rope or Fraxfill sealant to prevent draughts T1 Seal the bezel part of sleeve liner to the outer face of the wall using a suitable sealant 50mm minimum Sleeve liner EUROHEAT DISTRIBUTORS (H.B.S) LTD. 28

29 Fitting the High Level Vertical Flue Kit The flue system starter length should be sealed to the stove s flue spigot with a heat proof sealant,(we suggest fraxfill, part number MS9045). Apply a bead of heat resistant sealant to the inner face of the outer flue spigot and the outer face of the inner flue pipe. The clamp should be used to secure the first elbow or additional length and the appropriate heat proof tape used to secure the telescopic fitting. Heat proof sealant Heat proof sealant The vertical terminal will only fit the male end of the flue pipe. Accessory 90 short bend Accessory 90 short bend Wall bands should be fitted to support the flue pipe. The telescopic starter length must be used so that the male end of the flue pipe connects to the vertical flue terminal. All joints between the fixed lengths of flue must be secured with locking bands, and every meter in length horizontally or vertically must be supported. It is your responsibility to ensure that no part of the flue installation contravenes any gas or building regulations. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 29

30 Fitting the Low Level Horizontal Flue Kit The horizontal flue kit starter length should be secured by means of a self tapping screw. If it is to pass through a cavity wall then a sleeve liner (150mm part No. MS mm part No. MS91066) should be fitted. The terminal section should be fitted with the snorkel pointing upwards and the wind shield to protect the terminal outlet. Only the standard kit may be used from the rear flue outlet. Secure starter length with a self tapping screw Flue should be sleeved if passing through a cavity wall Sleeve kit 150mm part No. MS mm part No. MS91066 Terminal snorkle The terminal length should be fitted with the snorkle pointing upwards. Apply a bead of heat resistant sealant (we suggest fraxfill, part number MS9045) to the inner face of the outer flue spigot and the outer face of the inner flue pipe. Wind Shield The wind shield should be fitted using the spacers so that it baffles the top holes in the horizontal terminal to protect it from the effects of the wind. The top holes are pre-drilled into the terminal however in some cases the lower holes may need to be drilled to complete the installation. Fitting of Flue Spigot to Rear of the Stove Remove the inner and outer spigot from the top of the stove. Remove the rear blanking plate and fit the inner and outer spigots and the flue reduction plate (FRP) if required, see pages 23 and 24, to the rear of the stove. Fit the blanking plate onto the top plate. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 30

31 Glossary of Terms Term Top to horizontal high level Top to vertical high level Low level horizontal T1 T2 FRP Sleeve liner Outlet Terminal Wall band Locking band Closure bezel Terminal guard Roof flashing Ceiling support Fire stop spacer Existing chimney adapter kit Terminal snorkle Wind guard Fraxfill (MS9045) Description The flue kit rises from the top of the stove, it includes a long sweeping 90 bend and terminates through the side wall of a property. The flue kit rises from the top of the stove and terminates vertically through a roof. The flue runs horizontally from the back of the stove and terminates through the side wall of a property. Telescopic starter length. The first section of the flue kit which can telescope into the section of flue to follow it. Top connection only. Telescopic terminal length. The last section of the top to horizontal flue kit which can telescope into the section of flue before it. Flue reduction plate. A choke plate fitted into the outlet of the stove to reduce the velocity of the flue gases. Telescopic sleeve, required when a flue passes through a combustible or cavity wall. Position of the flue terminal, which is governed by Building Regulations, see diagram on page 6. Fitted to the end of the flue system, supplied with the flue kits. Required to support every 1m in length vertically or horizontally of flue. Supplied in the kits and with every additional length of flue pipe to secure the joints between sections. The closure bezel fits around the flue pipe covering the hole through the wall and giving the installation a clean finish. A wire mesh guard required when the outlet is in a vulnerable position, such as where the flue discharges within reach of the ground (less than 2m), or a balcony, verandah or a opening window. Required when a vertical flue passes through a roof. A vulcanised rubber gaiter through which the flue pipe passes allowing a water tight seal to be made. A metal plate with locking band required when a flue passes through a ceiling. Fitting onto the floor above the ceiling through which it passes with a clamp to secure it to the flue pipe and support the weight of the flue. A metal plate which fits on the ceiling through which the stove passes which is required to conform to Building Regulations. The existing chimney adapter kit can convert either ceramic lined chimneys or an unlined chimney into a balanced flue system. By using this system combustion air is drawn from the outside rather than from within the property. The upturned inner pipe within the low level horizontal flue kit, that when fitted should be pointing upwards. This fits on the outside of the low level horizontal terminal, standing away from the body of the terminal guard, with spacers, so protecting the top holes of the terminal from the effects of wind blowing directly on them. Fraxfill is a pliable (tacky putty) white ceramic fibre gap fill supplied in a 300g cartridge for use with a sealant gun. Fraxfill is recommended for applications with operating temperatures of up to 1200 C. EUROHEAT DISTRIBUTORS (H.B.S) LTD. 31

32 When installing the stove this documnet should be used in conjunction with Euroheats Installation Instructions specific to the stove supplied. The gas stoves in the Euroheat range may only be installed by a suitably qualified Gas Safe technician using the appropriate fittings for the gas type being installed, and the stove must not be modified in anyway. Important The installer is responsible under the Health and Safety at Work Act 1974 vi the caustic nature of fire cement and the possibility of disturbing asbestos and other materials such as ceramic in existing installations and to suggest appropriate protection to be given to the person (s) carrying out the installation. The complete installation must be carried out with due reference to the British Standards, Codes of Practice and Building Regulations relevant to the fuel type being installed, and the manufacturers installation instructions. This document is a General Installation Guide only. It does not replace the installation instructions or building regulations. No installation should be undertaken unless the installer is suitably qualified. Information from the Euroheat Technical Team Euroheat and Nestor Martin have a policy of continual research and development and reserve the right to modify its appliances without prior notice. We make every effort to ensure that the information provided in this document is correct and accurate at the time of printing. Continued updates occur to adapt documents to customer requirements and appliance changes. For the latest editions of all Euroheat documentation visit our web site We would request that you inform Euroheat of information which you feel is not provided in this document which would assist other users in the future. The Euroheat Technical Team Euroheat Distributors (H.B.S.). Ltd., Unit 2, Court Farm Business Park, Bishops Frome, Reception: Worcestershire, Technical Support: WR6 5AYY. tech@euroheat.co.uk EUROHEAT DISTRIBUTORS (H.B.S) LTD. 32