Top Ten Water Heaters
Navien America
NP-210A, NR-210A
NP-210A, NR-210A
Description:
This is a large gas-condensing tankless water heater.
Annual Energy Use (Therms/year):
159 Therms
The most efficient water heaters, ranked by Energy Factor, based on likely annual energy consumption. ENERGY STAR also uses this calculation.:
0.94
Lifetime Cost Savings vs. Energy Star Baseline:
$1,100
Lifetime Energy Savings Over Federal Minimum (Therms):
1,069 therms
Lifetime Energy Savings vs. Energy Star Baseline:
303 therms
Lifetime cost savings vs. Federal Minimum standard product:
$1,100
Specifications:
Depth (in.): 15"
Heating Method: Gas Condensing
Height (in.): 28"
Recovery Efficiency: 98%
Maximum Input (MMBtu/hour): 180
Width (in.): 17"



