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Residential Hot Water Heaters

402 Products
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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.
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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.
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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.
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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.
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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.
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Learn More About Rinnai RE140IPacw-sale-badge
Rinnai RE Series RE140IP - Residential 140,000 BTU - Liquid Propane Tankless Water Heater - Concentric Vent
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Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions Ratings: 5.3 GPM at 40° F Rise, 4.6 GPM at 50° F Rise, 3.8 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 140k Effective BTU/h
Item#: 124518
Model#: RE140IP
Brand: Rinnai
$805.70
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Rinnai RE Series RE140IP - Residential 140,000 BTU - Liquid Propane Tankless Water Heater - Concentric Vent
Learn More About Rinnai RE199EPacw-sale-badge
Rinnai RE Series - RE199 - Residential 199,000 BTU - Liquid Propane Tankless Water Heater - Outdoor
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Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions Ratings: 8.2 GPM at 40° F Rise, 6.6 GPM at 50° F Rise, 5.5 GPM at 60° F Rise, 4.6 GPM at 70° F Rise. 199k Effective BTU/h
Item#: 124526
Model#: RE199EP
Brand: Rinnai
$1,297.10
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Rinnai RE Series - RE199 - Residential 199,000 BTU - Liquid Propane Tankless Water Heater - Outdoor
Learn More About A.O. Smith Tank HPTS-80acw-sale-badge
A.O. Smith HPTS-80 Voltex® AL - 80 Gallon Capacity - Residential Hybrid Electric Heat Pump Water Heater
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4.5kW Heating Element.
Item#: 148158
Model#: HPTS-80
Brand: A.O. Smith Tank
$2,851.00
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A.O. Smith HPTS-80 Voltex® AL - 80 Gallon Capacity - Residential Hybrid Electric Heat Pump Water Heater
Learn More About Triangle Tube P3SMART316L60acw-sale-badge
Triangle Tube Smart 316 - 56 Gallon - Residential Indirect Water Heater
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Item#: 153295
Model#: P3SMART316L60
Brand: Triangle Tube
$1,790.01
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Triangle Tube Smart 316 - 56 Gallon - Residential Indirect Water Heater
Learn More About Noritz NRC661OD-LPacw-sale-badge
Noritz NRC661 - Residential 120,000 BTU - Liquid Propane Tankless Water Heater - Outdoor
5.0 out of 5 stars 5.0 out of 5 stars
(2)
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 5.8 GPM at 40° F Rise, 4.6 GPM at 50° F Rise, 3.8 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 112k Effective BTU/h.
Item#: 31851
Model#: NRC661OD-LP
Brand: Noritz
Sale: $1,000.05
On Sale Through 04/30
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Noritz NRC661 - Residential 120,000 BTU - Liquid Propane Tankless Water Heater - Outdoor
Learn More About A.O. Smith ATI-510U-Nacw-sale-badge
A.O. Smith ATI-510U - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
5.0 out of 5 stars 5.0 out of 5 stars
(1)
EnergyStar Water Heater. Ultra Low NOx Emissions. Ratings: 8.3 GPM at 40° F Rise, 6.9 GPM at 50° F Rise, 5.5 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 199k Max BTU/h.
Item#: 69986
Model#: ATI-510U-N
Brand: A.O. Smith
Sale: $1,006.05
On Sale Through 04/30
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A.O. Smith ATI-510U - Residential 199,000 BTU - Natural Gas Tankless Water Heater - Indoor
Learn More About Takagi T-H3S-DV-Pacw-sale-badge
Takagi T-H3S -Commercial/Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
5.0 out of 5 stars 5.0 out of 5 stars
(1)
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 8.0 GPM at 40° F Rise, 6.8 GPM at 50° F Rise, 5.7 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 180k Effective BTU/h.
Item#: 70558
Model#: T-H3S-DV-P
Brand: Takagi
$1,090.95
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Takagi T-H3S -Commercial/Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Learn More About Crown Boiler Co. MS2-050acw-sale-badge
Crown Boiler Co. 50 gal Indirect Water Heater
5.0 out of 5 stars 5.0 out of 5 stars
(1)
Item#: 103186
Model#: MS2-050
Brand: Crown Boiler Co.
$1,649.00
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Crown Boiler Co. 50 gal Indirect Water Heater
Learn More About A.O. Smith ATI-540HX3-Pacw-sale-badge
A.O. Smith X3 - Residential 199,000 BTU Ultra-Low Nox - Liquid Propane Tankless Water Heater with X3 Technology - Indoor
5.0 out of 5 stars 5.0 out of 5 stars
(1)
EnergyStar Condensing Water Heater. Ultra-Low NOx. Ratings: 9.5 GPM at 40° F Rise, 7.5 GPM at 50° F Rise, 6.2 GPM at 60° F Rise, 5.2 GPM at 70° F Rise. 199k Max BTU/h.
Item#: 123211
Model#: ATI-540HX3-P
Brand: A.O. Smith
Sale: $1,601.70
On Sale Through 04/30
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A.O. Smith X3 - Residential 199,000 BTU Ultra-Low Nox - Liquid Propane Tankless Water Heater with X3 Technology - Indoor
Learn More About Amtrol CH-41Z-Bacw-sale-badge
Amtrol CH-41Z - 41 Gallon - Indirect Water Heater - Blue
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Includes Mechanical Control.
Item#: 22958
Model#: CH-41Z-B
Brand: Amtrol
$1,823.90
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Amtrol CH-41Z - 41 Gallon - Indirect Water Heater - Blue
Learn More About Noritz NRC661OD-NGacw-sale-badge
Noritz NRC661 - Residential 120,000 BTU - Natural Gas Tankless Water Heater - Outdoor
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EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 5.8 GPM at 40° F Rise, 4.6 GPM at 50° F Rise, 3.8 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 109k Effective BTU/h.
Item#: 31853
Model#: NRC661OD-NG
Brand: Noritz
Sale: $1,000.05
On Sale Through 04/30
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Noritz NRC661 - Residential 120,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Learn More About Noritz NRC711OD-NGacw-sale-badge
Noritz NRC711 - Residential 157,000 BTU - Natural Gas Tankless Water Heater - Outdoor
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EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 7.1 GPM at 40° F Rise, 5.8 GPM at 50° F Rise, 4.9 GPM at 60° F Rise, 4.2 GPM at 70° F Rise. 148k Effective BTU/h.
Item#: 31857
Model#: NRC711OD-NG
Brand: Noritz
Sale: $1,230.83
On Sale Through 04/30
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Noritz NRC711 - Residential 157,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Learn More About Noritz NRC98-DV-LPacw-sale-badge
Noritz NRC98 - Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
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EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 8.4 GPM at 40° F Rise, 6.7 GPM at 50° F Rise, 5.6 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 180k Effective BTU/h.
Item#: 31858
Model#: NRC98-DV-LP
Brand: Noritz
Sale: $1,394.89
On Sale Through 04/30
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Noritz NRC98 - Residential 180,000 BTU - Liquid Propane Tankless Water Heater - Indoor
Learn More About Buderus LT200acw-sale-badge
Buderus LT200 - 53 Gallon - Horizontal Indirect Water Heater
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Item#: 37590
Model#: LT200
Brand: Buderus
$1,921.00
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Buderus LT200 - 53 Gallon - Horizontal Indirect Water Heater
Learn More About Buderus SST300-80acw-sale-badge
Buderus SST300-80 - 80 Gallon - Indirect Water Heater
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Item#: 37650
Model#: SST300-80
Brand: Buderus
$3,163.00
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Buderus SST300-80 - 80 Gallon - Indirect Water Heater
Learn More About Buderus SU54/5Wacw-sale-badge
Buderus SU54/5W - 52.8 Gallon - Indirect Water Heater
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Item#: 37653
Model#: SU54/5W
Brand: Buderus
$1,787.00
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Buderus SU54/5W - 52.8 Gallon - Indirect Water Heater
Learn More About Buderus SU80/5Wacw-sale-badge
Buderus SU80/5W - 79.3 Gallon - Indirect Water Heater
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Item#: 37654
Model#: SU80/5W
Brand: Buderus
$2,035.00
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Buderus SU80/5W - 79.3 Gallon - Indirect Water Heater
Learn More About Burnham AL35SLacw-sale-badge
Burnham AL35SL - 35 Gallon - Indirect Water Heater
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Item#: 37736
Model#: AL35SL
Brand: Burnham
$1,666.00
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Burnham AL35SL - 35 Gallon - Indirect Water Heater
Learn More About A.O. Smith Tank GPHE-50acw-sale-badge
A.O. Smith GPHE-50 - 50 Gallon Capacity -Residential Natural Gas Tank Water Heater - Direct Vent
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Item#: 70006
Model#: GPHE-50
Brand: A.O. Smith Tank
$3,141.00
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Free Lift Gate
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A.O. Smith GPHE-50 - 50 Gallon Capacity -Residential Natural Gas Tank Water Heater - Direct Vent
Learn More About Eemax EMT6acw-sale-badge
Eemax MiniTank™ 6.0 Gallon Storage 120 V / 1.4 kW Electric Mini Tank Point of Use Water Heater - Indoor
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37 min Recovery Time.
Item#: 70339
Model#: EMT6
Brand: Eemax
$259.45
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Eemax MiniTank™ 6.0 Gallon Storage 120 V / 1.4 kW Electric Mini Tank Point of Use Water Heater - Indoor
Learn More About Takagi TK-510U-E-Nacw-sale-badge
Takagi TK-510U - Commercial/Residential 199,000 BTU - Natural Gas Tankless Water Heater - Outdoor
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EnergyStar Condensing Water Heater. Ultra-Low NOx. Ratings: 8.3 GPM at 40° F Rise, 6.9 GPM at 50° F Rise, 5.5 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 199k Max BTU/h.
Item#: 70572
Model#: TK-510U-E-N
Brand: Takagi
$1,085.95
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Takagi TK-510U - Commercial/Residential 199,000 BTU - Natural Gas Tankless Water Heater - Outdoor
Learn More About Noritz BNR83-DVC-NGacw-sale-badge
Noritz BNR83C - Residential 180,000 BTU - Natural Gas Tankless Water Heater - Concentric - Builder's Pack
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EnergyStar Water Heater. Ultra Low NOx Emissions. Concentric Vent. Ratings: 7.6 GPM at 40° F Rise, 6.1 GPM at 50° F Rise, 5.0 GPM at 60° F Rise, 4.3 GPM at 70° F Rise. 180k Effective BTU/h.
Item#: 70847
Model#: BNR83-DVC-NG
Brand: Noritz
Sale: $1,291.94
On Sale Through 04/30
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Noritz BNR83C - Residential 180,000 BTU - Natural Gas Tankless Water Heater - Concentric - Builder's Pack