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Buyer's Guide Natural Gas Water Heaters Buyer's Guide Natural
Another uses heat from a hot water or steam space-heating system to run a .... First-hour ratings for natural gas storage water heaters range from 41 to over 131.

Straight Talk About Tankless Water Heaters - City of Crescent City, FL
facility, a reliable supply of hot water is paramount. ... electric- or gas-fired, tankless water heaters have the ... on the market today with energy efficiency ratings.
Dec 07 GFEN final_Tankless.pdf

a review of the sustainability of residential hot water infrastructure
This paper will review various types of water heating systems and will highlight ... tric vs. gas tanks, hot water recirculation, and “green” high efficiency heaters.

Laboratory Testing of Residential Gas Water Heaters
Ratings. Average Energy Factor Results from Testing. Thermal. Efficiency .... implications of hot water draw patterns on tankless gas water heaters: “Field and  ...

The Truth about Tankless Water Heaters - Midwest Electric
CRN Consumer Product Review. Word Count: 915 ... Unlike a traditional water heater, a tankless model does not store hot water. It ... Gas Tankless vs. Electric ...

Comparison of Advanced Residential Water Heating - NREL
Colorado Boulder for their review and other contributions. ... storage, gas tankless, condensing storage, electric storage, heat pump, and solar water heaters ... For gas water heaters, solar water heaters typically used the least amount of source ...

Condensing Storage Water Heaters - Heat Transfer Products
ber, and hot combustion gas rises through a flue in the center ... TE ratings of up to 98 percent, but ... see “Making Sense of Gas Water-Heater Ratings,” page. 7.

Residential Gas Water Heaters - AO Smith
HIGHEST RECOVERIES AND FIRST HOUR RATINGS. Capacity/input ... Helps reduce lime and sediment buildup, maximizes hot water output. Made from long ...

2010 ENERGY STAR Water Heater Market Profile
storage, gas tankless, heat pump, and solar water heater models had qualified for ... Tankless water heaters, which serve a whole home or heat water at the point of use, ...... Statistical Review,” Appliance Magazine, May 2009; "2009: Hope for ...

Water Heaters: Tank or Tankless? - Chief Architect
Common fuels for water heaters include electricity, gas, and oil. fuel costs and availability vary, so it is a good ... tank-style models keep hot water ready for use in 30- to 120-gal. storage tanks. .... Btu-per-hour ratings. for electric water heaters  ...

Energy-efficient water heating - Puget Sound Energy
Natural gas water heaters differ from electric tanks and use a natural gas burner .... ratings for different units with your peak hot water demand, as determined in ...

Residential Full Line Catalog - AO Smith
choose an A. O. Smith residential water heater, whether it's gas, electric, hybrid or tankless, you can be confident that you ..... Your A. O. Smith Water Heater Specialist can review your family's needs in ... Hot Water Output, Cost of Operation, & Installation Space Required estimated based on typical applications /installations.

Tankless (Instantaneous) Water Heaters for - City of Newark, CA
Existing gas-fired storage tank water heaters can be replaced by a gas fired instantaneous tankless ... shall be submitted for review prior to the issuance of a plumbing permit. ... Electrical bonding between hot water, cold water, and gas piping.

Specialty Residential Gas Water Heaters - Lochinvar
Electronic Gas Control - Each series of gas water heaters features a dedicated gas ... Heat Trap - The heat trap protects from heat loss through the water piping.

A Comparative Study of High-Efficiency Residential Natural Gas
used for both space-heating and domestic hot water. The authors outline the ... sponsored programs promoting high-efficiency gas water heating. ..... critical that consumers consider the relative efficiency ratings in comparing systems. A major  ...

Energy Trust of Oregon Existing Homes Gas Water Heater Market
Jan 8, 2016 ... Upon completion of the Domestic Hot Water Research and ... the gas water heater market, the review of existing research, key findings and ...

2017 BTO Peer Review - ORNL - Commercial Absorption Heat
Commercial Absorption Heat Pump Water Heater. 2017 Building Technologies Office Peer Review h ... full service restaurant gas hot water heating market.

the best of both worlds - State Water Heaters
“cold water sandwich”. • Smaller than a conventional 50-gallon gas water heater, but with twice the hot water delivery —. • Delivers hot water faster than tankless ...

Review of International Methods of Test to Rate the Efficiency of
Jan 25, 2011 ... [2] Although DOE currently is conducting a rulemaking to review ... gas and electric storage water heaters, heat-pump water heaters, and ...

Residential Energy Saver CombiCor® Direct Fired Gas Water
Vitraglas® lining—Bradford White water heater tanks are protected from the corrosive effects of hot water by an exclusive ceramic porcelain-like coating.