Green Plumbing and Mechanical Code Supplement

Transcription

1 Green Plumbing and Mechanical Code Supplement Doug Kirk IAPMO Director of Green Plumbing Curriculum 1

2 IAPMO Green Uniform Codes - developed with critical eye on sustainability IAPMO Board calls for a reduction in energy and water consumption in the Uniform Plumbing and Mechanical Codes. 2

3 IAPMO Green IAPMO Board creates two committees to accomplish goals Committee for the Awareness and Understanding of a Sustainable Environment (CAUSE) Green Technical Committee (GTC) 3

4 Driving Forces Buildings profound impact on environment, economy, health, and productivity. In the United States alone, buildings account for: 65% of electricity consumption, 36% of energy use, 30% of waste output, 12% of potable water consumption. Water constraints Drought Infrastructure Shortage 4

5 Driving Forces Anticipated Water Shortages - US EPA estimates that 38 States will experience non-drought related water shortages by the year 2015 Statewide (2) Regional (16) Local (18) None (9) No response or uncertain (5) AK WA OR NV CA MT ID WY UT CO AZ NM ND SD NE KS OK TX MN IA MO AR LA WI IL MS MI IN KY TN AL OH WV PA SC GA VA NC NH VT NY ME MA RI CT NJ DE MD HI FL Source: GAO analysis of state water managers responses to GAO survey Extent of state shortages likely over the next decade under average water conditions White & light gray states expect some shortages

6 Driving Forces

7 Reprinted with the permission of The National Drought Mitigation Center

8 Driving Forces 8

9 Green Technical Committee (GTC) 9

10 Green Technical Committee (GTC) Comprised of a diverse, 25 member group of experts in Green plumbing and mechanical fields Inspectors, plumbers, mechanics, contractors, engineers, manufacturers, trade associations and energy and water conservation authorities. 10

11 Green Technical Committee (GTC) 8 task groups (85 people in total) Plumbing Fixtures and Fittings HVACR Hot Water Systems Water Pipe Sizing* Alternate Water Sources Nonpotable Potable Rainwater Catchment Systems Commissioning and Verification General/Administration 11

12 GTC Objectives Develop Green Plumbing and Mechanical Code Supplement Identify opportunities to make Uniform Codes more sustainable. 12

13 Green Plumbing and Mechanical Code Supplement 13

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15 GPMCS Having Immediate Impact Serves as the basis of: City of Los Angeles water conservation ordinance Georgia Senate Bill 370, a comprehensive water conservation law Chicago Metropolitan Agency for Planning (CMAP) Model Water Conservation Ordinance City of Houston Plumbing Code 15

16 What is the Green Supplement? 16

17 Turnkey document IAPMO philosophy What is the Green Supplement? Covers all aspects of sustainability related to: Residential and commercial sustainable plumbing and mechanical systems 17

18 What is the Green Supplement? Regulatory framework written in code language elevate sustainable construction practices maintain IAPMO s high standards for protecting public health, safety and welfare. Minimum baseline for sustainability Repository for provisions that can be integrated into ANY code. 18

19 Most comprehensive document ever created regarding residential and commercial sustainable plumbing and mechanical systems. What is the Green Supplement? Designed to work with (or supplement) any and all plumbing and mechanical codes in use today Designed with green building rating schemes in mind 19

20 Why the Need? 20

21 Why the Need? Nothing focusing solely on plumbing and mechanical systems. Nothing covering all aspects of sustainable construction for RESIDENTIAL and COMMERCIAL SYSTEMS. Key stakeholders never brought together to properly vet sustainable plumbing and mechanical construction practices. 21

22 What It Covers 22

23 What it Covers? Water and energy efficiency Alternate water source use Indoor environmental quality Installer qualifications 23

24 Water Efficiency and Conservation 20% + more efficient than UPC Coverage areas: High efficiency plumbing fittings, fixtures and appliances. Water softening equipment Boiler makeup water Occupancy specific provision in restaurants and medical facilities Cooling towers and evaporative coolers 24

25 High Efficiency Plumbing Fixtures and Fittings Reliance on EPA WaterSense Specifications Products must be 3 rd party certified 25

26 Consistent with several State Green initiatives Texas, California, Georgia 1.28 gpf toilets except for flushometer valves 0.5 gpf urinals Effective dates: Vary state to state but some are in force now and others are in transition. All by

27 High Efficiency Plumbing Fixtures and Fittings 1.28 gpf max toilets Gravity Pressure assist Dual flush 1.6 gpf max flushometer valve 27

28 High Efficiency Plumbing Fixtures and Fittings 0.5 gpf or less urinals (HEU s) Nonwater using urinals Supply line rough-in at minimum height for backflow prevention device Shut off to isolate dead end 1 water-supplied fixture upstream (on drain). 28

29 High Efficiency Plumbing Fixtures and Fittings Lavatory faucets Residential -1.5 gpm Commercial 0.5 gpm 0.25 gallons per metering cycle 29

30 High Efficiency Plumbing Fixtures and Fittings 2.0 gpm max showerheads Auto compensating valve rated at flow rate of showerhead Tub diverter leakage 0.1 gpm 30

31 Multiple Showerheads in a Compartment 2.0 gpm max per 1,800 sq. in. No limit on number of outlets 31

32 Pre-Rinse Spray Valves Maximum flow rate of 1.6 gpm Auto shut off Typical valves- consume 2/3 of water used in a restaurant exceed 3.0 gpm operate for 5+ hrs 32

33 Submeters Required in commercial applications Landscape irrigation systems High water-using processes Tenant spaces Makeup water to cooling towers, evaporative condensers, large boiler Means of communicating data to consumer Behavior modification and system monitoring 33

34 Maximum Water Pressure 60 psi maximum Less water loss due to leakage Less consumption Less wear and tear on mechanical components 34

35 Water Softeners and Water Treatment Systems Timer regeneration prohibited Demand initiation regeneration Auto shut off for RO discharge 35

36 Alternate Water Sources Comprehensive provisions addressing Rainwater harvesting (nonpotable and potable) Reclaimed/Recycled water Gray water On-site treated nonpotable water systems. 36

37 It is a complex world of changing habits, regulations and expectations. For some, green thinking constitutes an unwelcome distraction, an intrusion into the normal course of business, but they couldn t be more wrong. Increasingly, business as usual means green business. Companies that embrace sustainable practices are finding that green business is not just a better way of doing business, it is a gateway to new opportunities that could help them survive in today s tougher markets. From an article entitled Think Green 37

38 Business Opportunities Conservation minded customers New technologies create repeat business Water Audits (rebates from utilities?) Opportunities with hospitals and hotels/ motels if shown ROI Show projected dollars savings 38

39 Calculating Water Savings Toilet Water Use Number of Persons x Flushes per Day x GPF x Days per Year 3 People x 6 Flushes per Day x 5 GPF x 365 = 32,850 Gallons 3 People x 6 Flushes per Day x 19 Lpf x 365 = 124,350 Liters 3 People x 6 Flushes per Day x 1.28 GPF x 365 = 8,410 Gallons 3 People x 6 Flushes per Day x 4.8 Lpf x 365 = 31,835 Liters Savings Achieved by switching to an HET = 24,440 gallons (92,515 liters) per year! 39

40 Calculating Water Savings Shower Water Use Number of persons x min per day x GPM x days per year 3 People x 10 min per day x 4 GPM x 365 = 43,800 gallons 3 People x 10 min per day x 15 Lpm x 365 = 165,800 Liters 3 People x 10 min per day x 1.6 GPM x 365 =17,520 gallons 3 People x 10 min per day x 4.8 Lpm x 365 = 66,320 Liters Savings achieved by with a high-efficiency showerhead = 26,280 gallons (99,480Liters) per year! 40

41 Calculating Water Savings Washing Machine Use Number of loads per year x 2.77 cu ft x 13.3 gallons per cu ft 392 loads x 2.77 cu ft x 13.3 gallons per cu ft = 14,442 gallons 392 loads x.078m 3 x 50 liters per.078 M 3 = 54,670 liters 392 loads x 2.77 cu ft x 4.5 gallons per cu ft = 4,886 gallons 392 loads x.078m 3 x 17 liters per.078 M 3 = 18,495 liters Savings achieved by with a high-efficiency washing machine = 9,556 gal (36,175 liters) per year! 41

42 Calculating Water & Sewer Savings Sewer Rate = $7.75 per CCF (1 CCF = ) Gallons Water Rate = $3.36 per CCF Combined Water & Sewer = $11.11 / ccf 24,440 saving from water closets 26,280 saving from showers 9,556 saving from washing machine 60,276 gallons saved/ = ccf ccf x / ccf = $ saved 42

43 Calculating Energy Savings (Natural Gas) 26,280 gal saved from showers 4,778 gal saved from washing machine (9556 gals / 2) 31,058 gallons heated water saved 31,058 x 8.35 lbs = 259,334 lb 259,334 lbs x 55 f =14,263,386 btu 14,263,386 btu /100,000 = therms therms x 1.27 / therm = $ /.56 (heater efficiency) = $

44 Calculating Energy Savings (Electricity) 26,280 gal saved from showers 4,778 gal saved from washing machine (9556 gals / 2) 31,058 gallons heated water saved 31,058 x 8.35 lbs = 259,334 lb 259,334 lbs x 55 f =14,263,386 btu 14,263,386 / 3412 = 4, kwh 4, x.079 / kwh = $ $ /.9 (heater efficiency) = $

45 Calculating Water, Sewer & Energy Savings (NG) 60,276 gallons saved/ = ccf ccf x / ccf = $ saved therms x 1.27 / therm = $ /.56 (heater efficiency) = $ $ = Savings per year at current rates 45

46 Calculating Water, Sewer & Energy Savings (elect.) 60,276 gallons saved/ = ccf ccf x / ccf = $ saved 4, x.079 / kwh = $ $ /.9 (heater efficiency) = $ $ = Savings per year at current rates 46

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50 Thank you for attending: Green Plumbing Codes = Business Opportunities [email protected] 50