Shop cheapest gas hot water heaters

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$499.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40H45DV
Lowe's
$499.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40H45DV
Lowe's
$469.00
A.O. Smith Signature 100 30-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-30H45D TTP
Lowe's
$469.00
A.O. Smith Signature 100 30-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-30H45D TTP
Lowe's
$529.00
Envirotemp 40-Gallon Tall 3-Year Warranty 35500-BTU Natural Gas Water Heater | 40T3-35NGR
Lowe's
$529.00
Envirotemp 40-Gallon Tall 3-Year Warranty 35500-BTU Natural Gas Water Heater | 40T3-35NGR
Lowe's
$599.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 35500-BTU Natural Gas Water Heater | G6-T4035NVR
Lowe's
$599.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 35500-BTU Natural Gas Water Heater | G6-T4035NVR
Lowe's
$459.00
A.O. Smith Signature 100 40-Gallons Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40R45DV
Lowe's
6K+
$459.00
A.O. Smith Signature 100 40-Gallons Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40R45DV
Lowe's
$549.00
A.O. Smith Signature 100 50-Gallon Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-50R45D TTP
Lowe's
$549.00
A.O. Smith Signature 100 50-Gallon Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-50R45D TTP
Lowe's
$719.99
$799.99
Reliance 40 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
10% off
$719.99
$799.99
Reliance 40 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
$589.00
A.O. Smith Signature 100 30-Gallon Short 6-Year Warranty 32000-BTU Natural Gas Water Heater | G6-S3032NVR
Lowe's
$589.00
A.O. Smith Signature 100 30-Gallon Short 6-Year Warranty 32000-BTU Natural Gas Water Heater | G6-S3032NVR
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallon Tall 6-Year Warranty 35500-BTU Natural Gas/Liquid Propane Water Heater | G6-MH4035NVR
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallon Tall 6-Year Warranty 35500-BTU Natural Gas/Liquid Propane Water Heater | G6-MH4035NVR
Lowe's
$789.00
A.O. Smith Signature 100 50-Gallon Tall 9-Year Warranty 40000-BTU Natural Gas Water Heater | G9-T5040NVR
Lowe's
1K+
$789.00
A.O. Smith Signature 100 50-Gallon Tall 9-Year Warranty 40000-BTU Natural Gas Water Heater | G9-T5040NVR
Lowe's
$769.00
A.O. Smith Signature 100 40-Gallon Short 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6-US4040NV
Lowe's
122
$769.00
A.O. Smith Signature 100 40-Gallon Short 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6-US4040NV
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6N-UT4040NVR
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6N-UT4040NVR
Lowe's
$79.89
$111.85
Rheem Performance 40 Gal. Tall 6 Year 36,000 BTU Natural GAS Water Heater
almoayyeduaeus
Free shipping
28% off
$79.89
$111.85
Rheem Performance 40 Gal. Tall 6 Year 36,000 BTU Natural GAS Water Heater
almoayyeduaeus
$222.99
$298.99
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Amazon.com
Free shipping
25% off
$222.99
$298.99
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Amazon.com
$1,116.90
A.O. Smith Signature 100 40-Gallon S Tall 6-Year Warranty 36000-BTU ULNX Natural Gas Water Heater Small | G6-UDS4036NV 100
Lowe's
$1,116.90
A.O. Smith Signature 100 40-Gallon S Tall 6-Year Warranty 36000-BTU ULNX Natural Gas Water Heater Small | G6-UDS4036NV 100
Lowe's
$944.95
Rheem Professional Classic Tall Atmospheric Residential Natural Gas Water Heater 38,000 BTU, 50 Gal.
HVAC Direct
$944.95
Rheem Professional Classic Tall Atmospheric Residential Natural Gas Water Heater 38,000 BTU, 50 Gal.
HVAC Direct
$89.92
$178.94
Rheem 38,000 BTU Natural Gas Water Heater, 40 Gal
Zhhgroupuae Store A
49% off
$89.92
$178.94
Rheem 38,000 BTU Natural Gas Water Heater, 40 Gal
Zhhgroupuae Store A
$760.91
Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater, 7.0 GPM, Gray
Amazon.com
Free shipping
$760.91
Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater, 7.0 GPM, Gray
Amazon.com
$99.66
$199.32
Rheem Water Heater Performance 50 Gal. Tall 38K BTU Ultra Low Natural GAS Tank 678009
www.growthsurfer.com A
Free shipping
50% off
$99.66
$199.32
Rheem Water Heater Performance 50 Gal. Tall 38K BTU Ultra Low Natural GAS Tank 678009
www.growthsurfer.com A
$319.17
$399.00
Ranein Natural Gas Tankless Water Heater With Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Amazon.com
227
Free shipping
20% off
$319.17
$399.00
Ranein Natural Gas Tankless Water Heater With Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Amazon.com
$61.95
$95.21
Rheem Performance Platinum 40 Gal. Tall 12-Year 40000 BTU Natural Gas Tank Water Heater
fashionbirthfi
Free shipping
34% off
$61.95
$95.21
Rheem Performance Platinum 40 Gal. Tall 12-Year 40000 BTU Natural Gas Tank Water Heater
fashionbirthfi
$77.21
$108.10
Rheem PROG40-34N RH62 Professional Classic 40 Gal. Residential Water Heater, Natural Gas/LP
uptownrenos.com
Free shipping
28% off
$77.21
$108.10
Rheem PROG40-34N RH62 Professional Classic 40 Gal. Residential Water Heater, Natural Gas/LP
uptownrenos.com
$99.66
$199.32
Richmond 6G40-32PF3 Tall GAS Water Heater, Propane Gas, 40 Gal Tank,
www.growthsurfer.com A
Free shipping
50% off
$99.66
$199.32
Richmond 6G40-32PF3 Tall GAS Water Heater, Propane Gas, 40 Gal Tank,
www.growthsurfer.com A
$89.28
$178.56
Rheem Performance 40 Gal. Tall 6-Year 40,000 BTU Natural GAS Tank Water Heater With Top T And P Valve 693699
Ajnaraintegrity Store Two
50% off
$89.28
$178.56
Rheem Performance 40 Gal. Tall 6-Year 40,000 BTU Natural GAS Tank Water Heater With Top T And P Valve 693699
Ajnaraintegrity Store Two
$394.99
VEVOR Gas Tankless Water Heater 8Gal Outdoor 191000 Btu Instant Hot Water Heater Smart Temperature Control & 3/4 Inch Npt Interface& Multiple
VEVOR
3
$394.99
VEVOR Gas Tankless Water Heater 8Gal Outdoor 191000 Btu Instant Hot Water Heater Smart Temperature Control & 3/4 Inch Npt Interface& Multiple
VEVOR
$99.66
$199.32
Richmond 6G50-38F3 Tall GAS Water Heater Natural GAS 50 Gal Tank Piez
www.growthsurfer.com A
Free shipping
50% off
$99.66
$199.32
Richmond 6G50-38F3 Tall GAS Water Heater Natural GAS 50 Gal Tank Piez
www.growthsurfer.com A
$1,179.99
Reliance 40 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
$1,179.99
Reliance 40 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
$69.98
$106.69
A.O. Smith Signature 30-Gallon Tall 6-Year Limited 32000-BTU Natural GAS Water Heater | G6-T3032NVR
fashionbirthfi
Free shipping
34% off
$69.98
$106.69
A.O. Smith Signature 30-Gallon Tall 6-Year Limited 32000-BTU Natural GAS Water Heater | G6-T3032NVR
fashionbirthfi
$1,259.99
Reliance 50 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
$1,259.99
Reliance 50 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
$88.99
$118.36
AO Smith GPVT-40 Residential Natural GAS Water Heater
Alternativasca Online One
24% off
$88.99
$118.36
AO Smith GPVT-40 Residential Natural GAS Water Heater
Alternativasca Online One
$932.24
A. O. Smith 256175 GCRL-40 NG 40Gal 40Kbtu Residential Gas Water Heater | Skip The Warehouse
Skip The Warehouse
$932.24
A. O. Smith 256175 GCRL-40 NG 40Gal 40Kbtu Residential Gas Water Heater | Skip The Warehouse
Skip The Warehouse
$1,744.83
State Water Heaters GS650BCS400 Select 50 Gallon Lowboy Natural Gas Water Heater | Skip The Warehouse
Skip The Warehouse
$1,744.83
State Water Heaters GS650BCS400 Select 50 Gallon Lowboy Natural Gas Water Heater | Skip The Warehouse
Skip The Warehouse
$1,764.00
Rheem Professional Classic Power Vent Natural Gas Water Heater 42,000 BTU, 50 Gal.
HVAC Direct
46
$1,764.00
Rheem Professional Classic Power Vent Natural Gas Water Heater 42,000 BTU, 50 Gal.
HVAC Direct
$792.49
CAMPLUX 6.86 GPM Natural Gas Tankless Water Heater For Whole Home, Outdoor Installation - White
Overstock.com
$792.49
CAMPLUX 6.86 GPM Natural Gas Tankless Water Heater For Whole Home, Outdoor Installation - White
Overstock.com
$932.24
A. O. Smith 256175 GCRL-40 NG 40Gal 40Kbtu Residential Gas Water Heater
Skip The Warehouse
$932.24
A. O. Smith 256175 GCRL-40 NG 40Gal 40Kbtu Residential Gas Water Heater
Skip The Warehouse
$299.99
VEVOR Gas Tankless Water Heater 5.3Gal Outdoor 120000 Btu Instant Hot Water Heater Smart Temperature Control & 3/4 Inch Npt Interface& Multiple
VEVOR
$299.99
VEVOR Gas Tankless Water Heater 5.3Gal Outdoor 120000 Btu Instant Hot Water Heater Smart Temperature Control & 3/4 Inch Npt Interface& Multiple
VEVOR
Best 40 Gallon Gas Water Heaters đź’§ (Buyer's Guide) | HVAC Training 101
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Best 40 Gallon Gas Water Heaters đź’§ (Buyer's Guide) | HVAC Training 101
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Shop cheapest gas hot water heaters

Sponsored
About our ads
$499.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40H45DV
Lowe's
$499.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40H45DV
Lowe's
$469.00
A.O. Smith Signature 100 30-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-30H45D TTP
Lowe's
$469.00
A.O. Smith Signature 100 30-Gallons Tall 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-30H45D TTP
Lowe's
$529.00
Envirotemp 40-Gallon Tall 3-Year Warranty 35500-BTU Natural Gas Water Heater | 40T3-35NGR
Lowe's
$529.00
Envirotemp 40-Gallon Tall 3-Year Warranty 35500-BTU Natural Gas Water Heater | 40T3-35NGR
Lowe's
$599.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 35500-BTU Natural Gas Water Heater | G6-T4035NVR
Lowe's
$599.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 35500-BTU Natural Gas Water Heater | G6-T4035NVR
Lowe's
$459.00
A.O. Smith Signature 100 40-Gallons Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40R45DV
Lowe's
6K+
$459.00
A.O. Smith Signature 100 40-Gallons Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-40R45DV
Lowe's
$549.00
A.O. Smith Signature 100 50-Gallon Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-50R45D TTP
Lowe's
$549.00
A.O. Smith Signature 100 50-Gallon Short 6-Year Warranty 4500-Watt Double Element Electric Water Heater | E6-50R45D TTP
Lowe's
$719.99
$799.99
Reliance 40 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
10% off
$719.99
$799.99
Reliance 40 Gal 40000 BTU Natural Gas Water Heater
Ace Hardware
$589.00
A.O. Smith Signature 100 30-Gallon Short 6-Year Warranty 32000-BTU Natural Gas Water Heater | G6-S3032NVR
Lowe's
$589.00
A.O. Smith Signature 100 30-Gallon Short 6-Year Warranty 32000-BTU Natural Gas Water Heater | G6-S3032NVR
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallon Tall 6-Year Warranty 35500-BTU Natural Gas/Liquid Propane Water Heater | G6-MH4035NVR
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallon Tall 6-Year Warranty 35500-BTU Natural Gas/Liquid Propane Water Heater | G6-MH4035NVR
Lowe's
$789.00
A.O. Smith Signature 100 50-Gallon Tall 9-Year Warranty 40000-BTU Natural Gas Water Heater | G9-T5040NVR
Lowe's
1K+
$789.00
A.O. Smith Signature 100 50-Gallon Tall 9-Year Warranty 40000-BTU Natural Gas Water Heater | G9-T5040NVR
Lowe's
$769.00
A.O. Smith Signature 100 40-Gallon Short 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6-US4040NV
Lowe's
122
$769.00
A.O. Smith Signature 100 40-Gallon Short 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6-US4040NV
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6N-UT4040NVR
Lowe's
$739.00
A.O. Smith Signature 100 40-Gallons Tall 6-Year Warranty 40000-BTU Natural Gas Water Heater | G6N-UT4040NVR
Lowe's
$79.89
$111.85
Rheem Performance 40 Gal. Tall 6 Year 36,000 BTU Natural GAS Water Heater
almoayyeduaeus
Free shipping
28% off
$79.89
$111.85
Rheem Performance 40 Gal. Tall 6 Year 36,000 BTU Natural GAS Water Heater
almoayyeduaeus
$222.99
$298.99
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Amazon.com
Free shipping
25% off
$222.99
$298.99
Ranein Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM, 80,000 BTU Instant Hot Water Heater
Amazon.com
$1,116.90
A.O. Smith Signature 100 40-Gallon S Tall 6-Year Warranty 36000-BTU ULNX Natural Gas Water Heater Small | G6-UDS4036NV 100
Lowe's
$1,116.90
A.O. Smith Signature 100 40-Gallon S Tall 6-Year Warranty 36000-BTU ULNX Natural Gas Water Heater Small | G6-UDS4036NV 100
Lowe's
$944.95
Rheem Professional Classic Tall Atmospheric Residential Natural Gas Water Heater 38,000 BTU, 50 Gal.
HVAC Direct
$944.95
Rheem Professional Classic Tall Atmospheric Residential Natural Gas Water Heater 38,000 BTU, 50 Gal.
HVAC Direct
$89.92
$178.94
Rheem 38,000 BTU Natural Gas Water Heater, 40 Gal
Zhhgroupuae Store A
49% off
$89.92
$178.94
Rheem 38,000 BTU Natural Gas Water Heater, 40 Gal
Zhhgroupuae Store A
$760.91
Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater, 7.0 GPM, Gray
Amazon.com
Free shipping
$760.91
Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater, 7.0 GPM, Gray
Amazon.com