Natural Gas Tankless Water Heaters
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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
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EnergyStar Condensing 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, 6.5 GPM at 60° F Rise, 5.6 GPM at 70° F Rise. 199.9k Effective BTU/h.
$2,363.66
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Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 6.2 GPM at 40° F Rise, 5.0 GPM at 50° F Rise, 4.2 GPM at 60° F Rise, 3.8 GPM at 70° F Rise. 130k Effective BTU/h.
$1,141.70
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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, 3.4 GPM at 70° F Rise. 130k Effective BTU/h.
$934.70
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Rinnai Ultra Series - RUS75 - 4.9 GPM at 60° F Rise - 0.90 UEF - Gas Tankless Water Heater - Outdoor
Wall Mounted, Condensing Water Heater Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Concentric Vent. Ratings: 7.4 GPM at 40° F Rise, 5.9 GPM at 50° F Rise, 4.9 GPM at 60° F Rise, 4.2 GPM at 70° F Rise. 160k Effective BTU/h.
$1,079.10
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EnergyStar Condensing Commercial Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 9.6 GPM at 40° F Rise, 7.6 GPM at 50° F Rise, 6.4 GPM at 60° F Rise, 5.5 GPM at 70° F Rise. 199k Effective BTU/h.
$1,424.43
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EnergyStar Condensing 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, 6.5 GPM at 60° F Rise, 5.6 GPM at 70° F Rise. 199.9k Effective BTU/h.
$1,875.16
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$723.60
Was $804.00
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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
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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
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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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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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EnergyStar Condensing Water Heater. 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.
$1,501.00
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$857.70
Was $953.00
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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
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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
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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
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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.
$1,295.00
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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.
$1,421.00
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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.
$1,421.00
Factory-Direct
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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.
$1,295.00
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.
$1,421.00
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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
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.
$1,421.00
Factory-Direct
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Displaying Products 49 - 72 (of 138)
Tools & Articles
How to Pick the Perfect Tankless Water Heater
What Size Tankless Water Heater Do I Need
Flow Rate at 40°F Rise
4 - 6 GPM
4 - 6 GPM Gas Tankless Water Heaters
6 - 7 GPM
6 - 7 GPM Gas Tankless Water Heaters
7 - 8 GPM
7 - 8 GPM Gas Tankless Water Heaters
8 - 9 GPM
8 - 9 GPM Gas Tankless Water Heaters
Greater Than 9 GPM
Greater Than 9 GPM Gas Tankless Water Heaters
Flow Rate at 50°F Rise
3 - 4 GPM
3 - 4 GPM Gas Tankless Water Heaters
4 - 5 GPM
4 - 5 GPM Gas Tankless Water Heaters
5 - 6 GPM
5 - 6 GPM Gas Tankless Water Heaters
6 - 7 GPM
6 - 7 GPM Gas Tankless Water Heaters
Greater Than 7 GPM
Greater Than 7 GPM Gas Tankless Water Heaters
Flow Rate at 60°F Rise
3 - 4 GPM
3 - 4 GPM Gas Tankless Water Heaters
4 - 5 GPM
4 - 5 GPM Gas Tankless Water Heaters
5 - 6 GPM
5 - 6 GPM Gas Tankless Water Heaters
6 - 7 GPM
6 - 7 GPM Gas Tankless Water Heaters
Greater Than 7 GPM
Greater Than 7 GPM Gas Tankless Water Heaters
Flow Rate at 70°F Rise
2 - 3 GPM
2 - 3 GPM Gas Tankless Water Heaters
3 - 4 GPM
3 - 4 GPM Gas Tankless Water Heaters
4 - 5 GPM
4 - 5 GPM Gas Tankless Water Heaters
5 - 6 GPM
5 - 6 GPM Gas Tankless Water Heaters
Greater Than 6 GPM
Greater Than 6 GPM Gas Tankless Water Heaters
Gas tankless water heaters can use either natural gas or liquid propane for their fuel source and be installed either indoors or outdoors. If you are looking for this type of versatility, shop our wide selection of gas tankless water heaters from the top brands and find the perfect match today.