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There are many types of water heaters on the market for your business or facility. Check out this glossary of terms to help you understand what’s available.

Types of Water Heaters

Direct-Vent Gas Water Heaters. These types of water heaters are best suited for use when there is insufficient ventilation within the installation space. A direct vent water heater draws air for combustion from outside rather than inside.

Flammable Vapor Ignition Resistant (FVIR) Gas Water Heaters. All 30, 40 and 50-gallon state standard-vent gas water heaters are now FVIR design gas water heaters. They come equipped with an advanced system designed to help prevent the accidental ignition of flammable vapors from gasoline and other sources outside the water heater. FVIR design water heaters meet standards for “Flammable Vapor Ignition Resistance” established by ANSI, the American National Standards Institute.

Point-of-Use Electric Water Heaters. The Point-of-use water heater design serves low-demand applications such as powder rooms, utility sinks, and other applications where a limited amount of hot water is required. Small storage tanks (2 through 30 gallons) and compact design permit installation in a cabinet, under a sink, or in other limited-space areas.

Power Vent Gas Water Heaters. In a power vent gas water heater, fuel is burned. The heat from the combustion process heats the water. Then, the exhaust gases transfer to the outside via the exhaust pipe or chimney to vent.

Power Direct-Vent Gas Water Heaters. In a direct vent water heater, fuel is burned and the heat from the combustion process is used to heat the water. The exhaust gases are then transferred to the outside via the exhaust pipe or chimney.

Standard-Vent Gas Water Heaters. These types of water heaters are known as an atmospheric vent. They draw all the air needed for proper burner operation from the indoor air around the water heater and vents products of combustion vertically through the roof.

Table Top Electric Water Heaters. Tabletop water heaters are an excellent choice when installations are in kitchens or other work areas that require additional counter space.

When it comes to replacing or installing a new commercial water heater, you’ll have hundreds of models from which to choose—Shop Wallingford Sales for top-quality, the best selection, and the best prices. Please call if you have any questions. We are here to help. 888.721.2763

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