Noritz
Model: N-0631S
Type: 7.1 GPM Max Tankless
Fuel: Natural Gas
Energy: 180000 BTU/H
Vent: Power
Flow: 3.8 GPM (75* Rise)
Energy Star: Yes
Nominal Price: $950 | Energy
Factor
0.83
Efficiency
Ratio | Operating
Cost
$235
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
5
Heater
Only | Payback
Years
15
Heater
Plus Install |
Noritz
Model: NR71-SV
Type: 7.1 GPM Max Tankless
Fuel: Natural Gas
Energy: 180000 BTU/H
Vent: Power
Flow: 3.8 GPM (75* Rise)
Energy Star: Yes
Nominal Price: $950 | Energy
Factor
0.83
Efficiency
Ratio | Operating
Cost
$235
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
5
Heater
Only | Payback
Years
15
Heater
Plus Install |
Takagi
Model: T-K4-IN-N
Type: 8 GPM Max Tankless
Fuel: Natural Gas
Energy: 190000 BTU/H
Vent: Power
Flow: 4 GPM (77* Rise)
Energy Star: Yes
Nominal Price: $800 | Energy
Factor
0.82
Efficiency
Ratio | Operating
Cost
$238
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
4
Heater
Only | Payback
Years
14
Heater
Plus Install |
Takagi
Model: T-K4-OS-N
Type: 8 GPM Max Tankless
Fuel: Natural Gas
Energy: 190000 BTU/H
Vent: Power
Flow: 4 GPM (77* Rise)
Energy Star: Yes
Nominal Price: $800 | Energy
Factor
0.82
Efficiency
Ratio | Operating
Cost
$238
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
4
Heater
Only | Payback
Years
14
Heater
Plus Install |
Bosch
Model: 1600P LP
Type: 4.3 GPM Max Tankless
Fuel: Propane
Energy: 117000 BTU/H
Vent: Power
Flow: 2.4 GPM (77* Rise)
Energy Star: No
Nominal Price: $600 | Energy
Factor
0.79
Efficiency
Ratio | Operating
Cost
$582
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
1
Heater
Only | Payback
Years
5
Heater
Plus Install |
Noritz
Model: NRC111-SV
Type: 11.1 GPM Max Tankless
Fuel: Propane Condensing
Energy: 199000 BTU/H
Vent: Power
Flow: 5 GPM (75* Rise)
Energy Star: Yes
Nominal Price: $1600 | Energy
Factor
0.93
Efficiency
Ratio | Operating
Cost
$494
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
4
Heater
Only | Payback
Years
7
Heater
Plus Install |
Takagi
Model: T-D2-IN-N
Type: 10 GPM Max Tankless
Fuel: Natural Gas
Energy: 199000 BTU/H
Vent: Power
Flow: 4.1 GPM (77* Rise)
Energy Star: Yes
Nominal Price: $1000 | Energy
Factor
0.83
Efficiency
Ratio | Operating
Cost
$235
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
5
Heater
Only | Payback
Years
15
Heater
Plus Install |
Noritz
Model: N-0531S
Type: 6.6 GPM Max Tankless
Fuel: Propane
Energy: 140000 BTU/H
Vent: Power
Flow: 3.1 GPM (75* Rise)
Energy Star: Yes
Nominal Price: $750 | Energy
Factor
0.84
Efficiency
Ratio | Operating
Cost
$547
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
1
Heater
Only | Payback
Years
5
Heater
Plus Install |
Noritz
Model: NR66-SV
Type: 6.6 GPM Max Tankless
Fuel: Propane
Energy: 140000 BTU/H
Vent: Power
Flow: 3.1 GPM (75* Rise)
Energy Star: Yes
Nominal Price: $750 | Energy
Factor
0.84
Efficiency
Ratio | Operating
Cost
$547
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
1
Heater
Only | Payback
Years
5
Heater
Plus Install |
Bosch
Model: 1600H NG
Type: 4.3 GPM Max Tankless
Fuel: Natural Gas
Energy: 117000 BTU/H
Vent: Power
Flow: 2.4 GPM (77* Rise)
Energy Star: No
Nominal Price: $700 | Energy
Factor
0.8
Efficiency
Ratio | Operating
Cost
$243
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
3
Heater
Only | Payback
Years
14
Heater
Plus Install |
AO Smith
Model: ATO-110-P
Type: 6.6 GPM Max Tankless
Fuel: Propane
Energy: 140000 BTU/H
Vent: Power
Flow: 3 GPM (77* Rise)
Energy Star: Yes
Nominal Price: $700 | Energy
Factor
0.82
Efficiency
Ratio | Operating
Cost
$560
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
1
Heater
Only | Payback
Years
5
Heater
Plus Install |
Takagi
Model: T-H2-DV -P
Type: 9 GPM Max Tankless
Fuel: Propane Condensing
Energy: 199000 BTU/H
Vent: Power
Flow: 4.8 GPM (77* Rise)
Energy Star: Yes
Nominal Price: $1350 | Energy
Factor
0.91
Efficiency
Ratio | Operating
Cost
$505
Annual
US Avg | Limited
Warranty
12
Years Heat
Exchanger | Payback
Years
3
Heater
Only | Payback
Years
7
Heater
Plus Install |
