Natural Gas Tankless Water Heaters
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EnergyStar Commercial 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. 199.9k Effective BTU/h.
$1,639.00
In-Stock
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2% Check Discount
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
Free Shipping & Lift Gate
2% Check Discount
$1,243.00
In-Stock
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2% Check Discount
EnergyStar Condensing Water Heater. Ultra-Low NOx (14 ng/J or 20 ppm). 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.
$1,558.00
In-Stock
Free Shipping
2% Check Discount
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 8.7 GPM at 40° F Rise, 7.0 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 4.9 GPM at 70° F Rise.
$2,117.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 8 GPM at 40° F Rise, 6.4 GPM at 50° F Rise, 5.3 GPM at 60° F Rise, 4.6 GPM at 70° F Rise.
$1,994.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
EnergyStar Condensing Water Heater. Ultra-Low NOx (14 ng/J or 20 ppm). Ratings: 6.7 GPM at 40° F Rise, 6.1 GPM at 50° F Rise, 5.1 GPM at 60° F Rise, 4.3 GPM at 70° F Rise. 160k Max BTU/h.
$1,145.00
Was $1,295.00
SAVE $150.00
Factory-Direct
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2% Check Discount
EnergyStar Condensing Water Heater. Ultra-Low NOx (14 ng/J or 20 ppm). Ratings: 8 GPM at 40° F Rise, 6.8 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 4.9 GPM at 70° F Rise. 180k Max BTU/h.
$1,271.00
Was $1,421.00
SAVE $150.00
Factory-Direct
Free Shipping
2% Check Discount
EnergyStar Condensing Water Heater. Ultra-Low NOx (14 ng/J or 20 ppm). 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.
$1,408.00
Was $1,558.00
SAVE $150.00
Factory-Direct
Free Shipping
2% Check Discount
EnergyStar Condensing Water Heater. Ultra-Low NOx (14 ng/J or 20 ppm). Ratings: 8 GPM at 40° F Rise, 6.8 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 4.9 GPM at 70° F Rise. 180k Max BTU/h.
$1,271.00
Was $1,421.00
SAVE $150.00
Factory-Direct
Free Shipping
2% Check Discount
EnergyStar Condensing Water Heater. Ultra-Low NOx (14 ng/J or 20 ppm). 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.
$1,408.00
Was $1,558.00
SAVE $150.00
In-Stock
Free Shipping
2% Check Discount
Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 6.6 GPM at 40° F Rise, 5.3 GPM at 50° F Rise, 4.4 GPM at 60° F Rise, 3.8 GPM at 70° F Rise. 160k Effective BTU/h
$1,056.26
In-Stock
Free Shipping
2% Check Discount
$1,439.75
In-Stock
Free Shipping
2% Check Discount
Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 6.6 GPM at 40° F Rise, 5.3 GPM at 50° F Rise, 4.4 GPM at 60° F Rise, 3.8 GPM at 70° F Rise. 160k Effective BTU/h
$1,056.25
In-Stock
Free Shipping
2% Check Discount
Wall Mounted, Non-Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 7.9 GPM at 40° F Rise, 6.6 GPM at 50° F Rise, 5.5 GPM at 60° F Rise, 4.7 GPM at 70° F Rise. 199k Effective BTU/h
$1,439.75
In-Stock
Free Shipping
2% Check Discount
$804.00
Factory-Direct
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$1,243.00
In-Stock
Free Shipping
2% Check Discount
$675.50
Was $804.00
SAVE $128.50
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$953.00
In-Stock
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$989.80
Was $1,243.00
SAVE $253.20
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$1,170.00
In-Stock
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2% Check Discount
$861.78
Was $1,001.00
SAVE $139.22
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$1,062.10
Was $1,188.00
SAVE $125.90
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$1,162.32
Was $1,336.00
SAVE $173.68
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Displaying Products 49 - 72 (of 116)
Tools & Articles
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
4 - 6 GPM
4 - 6 GPM Natural Gas Tankless Water Heaters
6 - 7 GPM
6 - 7 GPM Natural Gas Tankless Water Heaters
7 - 8 GPM
7 - 8 GPM Natural Gas Tankless Water Heaters
8 - 9 GPM
8 - 9 GPM Natural Gas Tankless Water Heaters
Greater Than 9 GPM
Greater Than 9 GPM Natural Gas Tankless Water Heaters
Flow Rate at 50°F Rise
3 - 4 GPM
3 - 4 GPM Natural Gas Tankless Water Heaters
4 - 5 GPM
4 - 5 GPM Natural Gas Tankless Water Heaters
5 - 6 GPM
5 - 6 GPM Natural Gas Tankless Water Heaters
6 - 7 GPM
6 - 7 GPM Natural Gas Tankless Water Heaters
Greater Than 7 GPM
Greater Than 7 GPM Natural Gas Tankless Water Heaters
Flow Rate at 60°F Rise
3 - 4 GPM
3 - 4 GPM Natural Gas Tankless Water Heaters
4 - 5 GPM
4 - 5 GPM Natural Gas Tankless Water Heaters
5 - 6 GPM
5 - 6 GPM Natural Gas Tankless Water Heaters
6 - 7 GPM
6 - 7 GPM Natural Gas Tankless Water Heaters
Greater Than 7 GPM
Greater Than 7 GPM Natural Gas Tankless Water Heaters
Flow Rate at 70°F Rise
2 - 3 GPM
2 - 3 GPM Natural Gas Tankless Water Heaters
3 - 4 GPM
3 - 4 GPM Natural Gas Tankless Water Heaters
4 - 5 GPM
4 - 5 GPM Natural Gas Tankless Water Heaters
5 - 6 GPM
5 - 6 GPM Natural Gas Tankless Water Heaters
Greater Than 6 GPM
Greater Than 6 GPM Natural Gas Tankless Water Heaters