Natural Gas Tankless Water Heaters

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Learn More About Noritz NRC111-OD-NG
Noritz
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 9.3 GPM at 40° F Rise, 7.4 GPM at 50° F Rise, 6.2 GPM at 60° F Rise, 5.3 GPM at 70° F Rise. 184k Effective BTU/h.
$1,779.86
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Noritz NCC199CDV-NG
Noritz
EnergyStar Commercial Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 9.3 GPM at 40& deg; F Rise, 7.4 GPM at 50° F Rise, 6.2 GPM at 60° F Rise, 5.3 GPM at 70° F Rise. 199k Effective BTU/h.
$2,472.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rheem Tankless RTGH-95DVELN-3
$1,351.82
Was $1,370.00
SAVE $18.18
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rinnai RXP199IN
Rinnai
Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 9.8 GPM at 40° F Rise, 7.8 GPM at 50° F Rise, 6.4 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 199 k Effective BTU/h.
$1,866.90
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rinnai CX199IN
Rinnai
Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 9.8 GPM at 40° F Rise, 7.8 GPM at 50° F Rise, 6.4 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 199 k Effective BTU/h.
$1,582.70
In-Stock
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rinnai CXP199IN
Rinnai
Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 9.8 GPM at 40° F Rise, 7.8 GPM at 50° F Rise, 6.4 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 199 k Effective BTU/h.
$2,011.80
Factory-Direct
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Takagi T-H3-OS-N
Takagi
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions (< 40 ng/J or 55 PPM). Ratings: 9.5 GPM at 40° F Rise, 7.5 GPM at 50° F Rise, 6.3 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 199k Effective BTU/h.
$1,185.95
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Noritz NRC661-OD-NG
Noritz
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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.
$1,052.69
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Noritz NRC661-DV-NG
Noritz
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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.
$1,052.69
In-Stock
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Noritz NR83OD-NG
Noritz
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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.
$1,253.23
Factory-Direct
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rinnai V53DEN
Rinnai
Wall Mounted, Non-Condensing Water Heater Low NOx Emissions (< 40 ng/J or 55 PPM). Ratings: 4.9 GPM at 40° F Rise, 3.9 GPM at 50° F Rise, 3.3 GPM at 60° F Rise, 2.8 GPM at 70° F Rise. 120k Effective BTU/h.
$602.74
Was $669.71
SAVE $66.97
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Rheem Tankless RTGH-RH11DVLN
$1,291.05
Was $1,635.70
SAVE $344.65
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rheem Tankless RTG-70XLN
$675.50
Was $804.00
SAVE $128.50
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Learn More About Noritz NHH199100-NG
$7,938.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rheem Tankless RTG-84DVLN-3
$899.00
Was $953.00
SAVE $54.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Rinnai RXP160IN
Rinnai
Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 7.8 GPM at 40° F Rise, 6.2 GPM at 50° F Rise, 5.2 GPM at 60° F Rise, 4.4 GPM at 70° F Rise. 160 k Effective BTU/h.
$1,521.80
In-Stock
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rinnai RE180IN
Rinnai
Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 7.4 GPM at 40° F Rise, 6.0 GPM at 50° F Rise, 5.0 GPM at 60° F Rise, 4.3 GPM at 70° F Rise. 180k Effective BTU/h
$994.77
Was $1,579.00
SAVE $584.23
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Rinnai RE199IN
Rinnai
Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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
$1,167.39
Was $1,853.00
SAVE $685.61
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Noritz NR662-OD-NG
Noritz
EnergyStar Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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. 122k Effective BTU/h.
$899.56
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About A.O. Smith ATI-340H-N
A.O. Smith
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). 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. 171k Effective BTU/h.
$992.00
Was $1,142.00
SAVE $150.00
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Learn More About Noritz NRC98-OD-NG
Noritz
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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.
$1,549.88
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Rinnai RUCS65IN
Rinnai
Wall Mounted, Condensing Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Concentric Vent. Ratings: 6.0 GPM at 40° F Rise, 4.8 GPM at 50° F Rise, 4.0 GPM at 60° F Rise, 3.5 GPM at 70° F Rise. 130k Effective BTU/h.
$599.00
Was $649.00
SAVE $50.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Learn More About Rinnai RU180IN
Rinnai
Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 8.6 GPM at 40° F Rise, 6.9 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 4.9 GPM at 70° F Rise. 180k Effective BTU/h.
$1,273.23
Only 1 In-Stock
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Noritz NCC300OD-NG
Noritz
EnergyStar Commercial Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 13.2 GPM at 40& deg; F Rise, 11.6 GPM at 50° F Rise, 9.7 GPM at 60° F Rise, 8.3 GPM at 70° F Rise. 300k Effective BTU/h.
$4,887.00
In-Stock
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Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.

Tools & Articles

How to Pick the Perfect Tankless Water Heater
Read Article
What Size Tankless Water Heater Do I Need
Read Article
Natural gas tankless water heaters are compact, can supply hot water as long as needed, and require less energy to run than other systems. Depending on the model, natural gas tankless water heaters are also available as indoor or outdoor units, offering the homeowner more flexibility.

Flow Rate at 40°F Rise

Flow Rate at 50°F Rise

Flow Rate at 60°F Rise

Flow Rate at 70°F Rise