Water Heater Buying Guide!

Transcription

1 Water Heater Buying Guide!

2 Traditional Storage! Water Heaters!! Hot water is stored at the top of the tank and disbursed when you turn on a hot! water tap. They run on conventional fuels, including gas, propane, fuel oil, and electricity. They come in a variety of sizes including 20, 40, 50, 60, 75, and! 100 gallons. Storage water heaters are available in natural gas, electric, and! liquid-propane models.!

3 Traditional Storage Water Heaters! Here s a chart to help you decide what kind of water heater you need based on your family size.! You can also look at it this way: for a one-bathroom house, gallons should be sufficient; for a one-anda-half baths, 40 gallons at the minimum; for 2-3 bathrooms, a 50 gallon water heater; and for 4+ bathrooms, 75 gallon-size water heaters and above.!

4 Tankless or On-Demand! Water Heaters! Tankless water heaters offer efficient! water savings and provide near-instantaneous hot water. They cut down on warm up time by only heating water when there is demand. They run on electricity, liquid propane and natural gas. A tankless unit can provide up to 3.5 gallons of water per minute - most showers run at gallons per minute. Tankless water heaters do require professional installation, however, otherwise the warranty may be voided. They also require plenty of space for proper ventilation, so make sure that the install location meets the unit s requirements.!

5 Point of Use! Water Heaters! Point of use hot water heaters are designed! to supply a single outlet at a time. They are excellent if you want a limitless supply of! water for your shower, tub, or other area! where you need hot water. Typical installations include near the dishwasher, clothes washer! and shower.!

6 Hybrid Electric Heaters! Hybrids operate by using pre-installed air! source heat pumps and electric elements.! This model mixes two types of hot water! delivery: standard electrical resistance coils! and an air source heat pump. A hybrid heats! hot water by extracting heat from ambient! air and using it to heat the water. Hybrids have! the added benefit of providing a smooth flow! of hot water. They have a storage tank (known! as a buffer tank ) that holds hot water in reserve, while also heating water on demand! like a tankless. A potential downside is that hybrids require a lot of space, as much as 7 feet of clearance from floor to ceiling. Hybrids also tend to be noisier than other types of hot water heaters.!

7 Solar Water Heaters! If you want an eco-friendly unit, you maywant to invest in a solar water heater.powered by the sun, these water heatersuse less electricity than their traditional counterparts, without producing pollution. Installation is expensive, however. Still,federal tax credits and rebates can helpmitigate the cost.!

8 2015 Water Heater Regulations! Water heaters manufactured after April 16, 2015, must comply with regulations enacted by the National Appliance Energy Conservation Act (NAECA). NAECA was approved by Congress in March 1987 to regulate energy consumption and it is administered by the US Department of Energy (DOE). The DOE also oversees the ENERGYSTAR program.!! The new standards demand that new water heaters must have 3%-30% greater energy efficiency than their predecessors. If you have a larger tank, then more efficiency is required. Although the standards for increased efficiency may not seem significant, when applied on a national scale, the energy savings can be tremendous.!! Below is how a water heater s energy factor is calculated. Energy Factor rates a water heater s overall energy efficiency, and the higher, the better. The number is based on the amount of hot water produced per unit of fuel consumed on a typical day. The energy factor is measured in three ways.! Recovered Efficiency! Recovered efficiency measures how efficiently the heat from the energy source is transferred to the water.! Standby Losses! Standby losses are the losses in heat that occur when the water in your storage tank is idle in between times of heating up. Gas water heaters suffer from greater standby losses than electric ones.! Cycling Losses! Cycling loss is the heat water loses as it circulates through the water heater tank.!

9 Criteria for Qualified Water Heaters! Electric Storage Water Heaters! Gas Instantaneous Water Heaters! Gas Storage Water Heaters! Solar Water Heaters!

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