Tankless gas water heaters use natural gas to heat water ... The maximum flow rate is 6.6 GPM, and it is Energy star rated as it does not overconsume energy during operation.

For the average family of four, you can't go wrong with the Rinnai Condensing Tankless Water Heater. This natural gas model ... a year to operate. It's Energy Star-certified, and you'll have ...

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 ...

Electric, propane and natural gas water heaters have ... Some factors that affect the cost of tankless water heaters include: Special features. Energy efficient certification and high-end features ...