Brand -
Type -
Maximum Input Capacity (BTU) Learn More
Maximum Input Capacity (BTU)
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used. -
Energy Factor Learn More
Energy Factor
Energy Factor (EF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater. Learn More -
AFUE (%) Learn More
AFUE (%)
AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More -
Vent Type Learn More
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance. -
Fuel Type Learn More
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat. +
Blower Motor Type +
Flow Rate at 40F Temperature Rise (GPM) Learn More
Flow Rate at 40F Temperature Rise (GPM)
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More +
Product Status

Water Heater Reviews

294 Products Found
Brand -
Type -
Maximum Input Capacity (BTU) Learn More
Maximum Input Capacity (BTU)
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used. -
Energy Factor Learn More
Energy Factor
Energy Factor (EF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater. Learn More -
AFUE (%) Learn More
AFUE (%)
AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More -
Vent Type Learn More
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance. -
Fuel Type Learn More
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat. +
Blower Motor Type +
Flow Rate at 40F Temperature Rise (GPM) Learn More
Flow Rate at 40F Temperature Rise (GPM)
Flow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location. Learn More +
Product Status
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Learn More About T-H3M-DV-N
Takagi T-H3M - Residential 120,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: T-H3M-DV-N
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Takagi T-H3 - Commercial/Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: T-H3-DV-N
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$1,200.95
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Takagi T-H3J - Commercial/Residential 160,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: T-H3J-DV-N
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Learn More About T-H3J-DV-P
Takagi T-H3J - Residential 160,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: T-H3J-DV-P
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Learn More About T-H3M-OS-N
Takagi T-H3M - Residential 120,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Model: T-H3M-OS-N
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Takagi T-H3M - Residential 120,000 BTU - Liquid Propane Tankless Water Heater - Outdoor
Model: T-H3M-OS-P
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Learn More About T-H3S-DV-P
Takagi T-H3S -Commercial/Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: T-H3S-DV-P
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$1,090.95
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Takagi T-H3J - Commercial/Residential 160,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Model: T-H3J-OS-N
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Learn More About 633600001
Weil-McLain Aqua Plus 45 - 45 Gallon Capacity- Residential Indirect Water Heater
Model: 633600001
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$1,700.34
$1,628.19
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Weil-McLain Aqua Plus 55 Gallon Capacity - Residential Indirect Water Heater
Model: 633600002
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$2,299.28
$2,201.73
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Learn More About ATI-240H-N
A.O. Smith ATI-240H - Residential 160,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-240H-N
(11)
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$1,022.00
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Weil-McLain Aqua Plus 85 - 85 Gallon Capacity - Residential Indirect Water Heater
Model: 633600003
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$2,827.28
$2,707.33
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A.O. Smith ATI-540H - Residential 199,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-540H-P
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$1,394.00
$1,324.30
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A.O. Smith ATI-340H - Residential 180,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-340H-N
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$1,142.00
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A.O. Smith ATI-140H - Residential 120,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-140H-N
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Weil-McLain Aqua Plus 105 Gallon Capacity - Residential Indirect Water Heater
Model: 633600004
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$4,044.99
$3,873.37
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Webstone Isolator - 3/4" Threaded - Isolation Valve Kit w/ 150 PSI Pressure Relief Valve
Model: 44443WPR
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A.O. Smith ATI-140H - Residential 120,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-140H-P
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Learn More About ATI-240H-P
A.O. Smith ATI-240H - Residential 160,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-240H-P
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$1,022.00
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A.O. Smith ATI-340H - Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-340H-P
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$1,142.00
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A.O. Smith FPTU-50 - 50 Gallon Capacity - Residential Hybrid Electric Heat Pump Water Heater
Model: FPTU-50
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Learn More About ATI-540P-P
A.O. Smith ATI-540P - Residential 199,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-540P-P
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$1,650.00
$1,567.50
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Learn More About 44443WPR-LF
Webstone Isolator - 3/4" Threaded - Isolator Valve Kit w/ 150 PSI Pressure Relief Valve - Lead Free Including PRV
Model: 44443WPR-LF
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Webstone Isolator - 3/4" Sweat - Isolation Valve kit w/ 150 PSI Relief Valve - Lead Free Including PRV
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