Top Ten Water Heaters
Eternal
GU145(S)
GU145(S)
Description:
This is a medium-sized gas-condensing tankless water heater.
Annual Energy Use (Therms/year):
156 Therms
Lifetime cost savings vs. Federal Minimum standard product:
$1,145
Lifetime Energy Savings Over Federal Minimum (Therms):
1,113 Therms
Lifetime energy savings vs. average Energy Star product:
346 Therms
The most efficient water heaters, ranked by Energy Factor, based on likely annual energy consumption. ENERGY STAR also uses this calculation.:
.96
Specifications:
Depth (in.): 13.8"
Heating Method: Gas Condensing
Height (in.): 29.1"
Maximum Input (MMBtu/hour): 145
Recovery Efficiency: 96%
Width (in.): 16.9"
