Top Ten Water Heaters
Navien America
NP-180A, NR-180A
NP-180A, NR-180A
Description:
This is a medium-sized gas-condensing tankless water heater.
Annual Energy Use (Therms/year):
159 Therms
Lifetime cost savings vs. Federal Minimum standard product:
$1,100
Lifetime Energy Savings Over Federal Minimum (Therms):
1,069 Therms
Lifetime energy savings vs. average Energy Star product:
303 Therms
The most efficient water heaters, ranked by Energy Factor, based on likely annual energy consumption. ENERGY STAR also uses this calculation.:
.94
Width (in.):
17"
Specifications:
: 14"
: Gas Condensing
: 28"
: 150
: 98%
