Top Ten Water Heaters
Navien America
NP-180, NR-180
NP-180, NR-180
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:
: 14"
: Gas Condensing
: 28"
: 150
: 98%
: 17"
