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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. -
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. -
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 -
Flow Rate at 50F Temperature Rise (GPM) Learn More
Flow Rate at 50F 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 -
Flow Rate at 60F Temperature Rise (GPM) Learn More
Flow Rate at 60F 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 -
Flow Rate at 70F Temperature Rise (GPM) Learn More
Flow Rate at 70F 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 +
Installation Location +
Product Line +
Product Status

A.O. Smith Reviews

19 Products Found
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. -
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. -
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 -
Flow Rate at 50F Temperature Rise (GPM) Learn More
Flow Rate at 50F 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 -
Flow Rate at 60F Temperature Rise (GPM) Learn More
Flow Rate at 60F 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 -
Flow Rate at 70F Temperature Rise (GPM) Learn More
Flow Rate at 70F 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 +
Installation Location +
Product Line +
Product Status
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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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Learn More About ATI-540H-P
A.O. Smith ATI-540H - Residential 199,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-540H-P
(11)
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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
14% Buy This
(10)
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$1,142.00
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Learn More About ATI-140H-N
A.O. Smith ATI-140H - Residential 120,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-140H-N
(10)
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Learn More About ATI-140H-P
A.O. Smith ATI-140H - Residential 120,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-140H-P
(8)
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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
(8)
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$1,022.00
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Learn More About ATI-340H-P
A.O. Smith ATI-340H - Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Model: ATI-340H-P
(8)
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$1,142.00
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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
(6)
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$1,650.00
$1,567.50
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Learn More About ATI-540H-N
A.O. Smith ATI-540H - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-540H-N
29% Buy This
(14)
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$1,269.00
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A.O. Smith ATI-540P - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-540P-N
14% Buy This
(8)
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$1,640.00
$1,558.00
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Learn More About ATI-310C-N
A.O. Smith ATI-310C - Residential 190,000 BTU - Natural Gas Tankless Water Heater - Concentric Vent
Model: ATI-310C-N
(6)
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Learn More About ATI-510C-N
A.O. Smith ATI-510C - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-510C-N
(6)
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$1,160.00
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Learn More About ATI-110U-N
A.O. Smith ATI-110U - Residential 140,000 BTU - Natural Gas Tankless Water Heater - Power Vent
Model: ATI-110U-N
(4)
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Learn More About ATI-510U-N
A.O. Smith ATI-510U - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Model: ATI-510U-N
7% Buy This
(4)
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$1,059.00
$1,006.05
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Learn More About ATI-540HX3-N
A.O. Smith X3 - Residential 199,000 BTU Ultra-Low Nox - Natural Gas Tankless Water Heater with X3 Technology - Indoor
Model: ATI-540HX3-N
7% Buy This
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$1,686.00
$1,601.70
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Learn More About ATO-540H-N
A.O. Smith ATO-540H - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Model: ATO-540H-N
(2)
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$1,269.00
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Learn More About ATO-540H-P
A.O. Smith ATO-540H - Residential 199,000 BTU - Liquid Propane Tankless Water Heater - Outdoor
Model: ATO-540H-P
29% Buy This
(1)
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$1,269.00
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Learn More About ATO-540P-N
A.O. Smith ATO-540P - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Model: ATO-540P-N
(1)
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$1,501.00
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Learn More About ATO-540HX3-P
A.O. Smith X3 - Residential 199,000 BTU Ultra-Low Nox - Liquid Propane Tankless Water Heater with X3 Technology - Outdoor
Model: ATO-540HX3-P
(1)
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$1,558.00
$1,480.10
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