Welcome to the State of California

Gas: Storage Gas

Water heating energy use is an important end use in low-rise residential buildings. Roughly 90% of California households use natural gas fueled water heaters, typically with storage gas units with tank volumes of 40 to 50 gallons. For minimum efficiency water heaters, standby losses can be up to 43% and include losses through the vent as well as tank surface losses.


Video of Storage Water Heaters

Storage Water Heaters

Approximately 25% of the energy consumed by California homes is used to produce hot water. Energy consultant Steve Easley, and Philip Wallace from American Water Heater Company explain how the energy efficiency of tank or storage water heaters is measured using an Energy Factor. The Energy Factor is a calculated number which measures water heater recovery efficiency and standby heat loss. Higher Energy Factors result in more efficient water heaters. Thermal efficiency, on the other hand, is a measurement of how much of the heat produced actually goes into the water.

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Video of Installation of Storage Water Heaters

Installation of Storage Water Heaters

Installation is an important consideration pertaining to storage water heaters. Energy expert Steve Easley and Phillip Wallace from American Water Heater Company discuss factors to keep in mind during installation such as location of the water heater, proper size of the gas pipe and water supply line, and venting the water heater.

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