Mechanical gas valve. Repair people speak highly of classic ... larger water heater. See our Water Heater Buying Guide. Be sure to look into tankless water heaters because, with this type, you ...

Uniform Energy Factor refers to a water heater's efficiency when run under simulated heavy use conditions for a 24-hour period. Gas Tanked is part of the Water Heaters test program at Consumer ...

Uniform Energy Factor refers to a water heater's efficiency when run under simulated heavy use conditions for a 24-hour period. Gas Tankless is part of the Water Heaters test program at Consumer ...