Non-Condensing Gas Tankless Water Heaters

Listed when

An indoor non-condensing gas tankless water heater.

Sorted by

Input (BTU/h) (highest first)

In the list

The top 8 of 41 products in our catalog that meet the rule.

#1 · Input (BTU/h): 199,000 btu_per_hour_per_foot_per_fahrenheit

MIZUDO WCIU-HW199A1G-NG-M0 199,000 BTU Natural Gas Tankless Water Heater

199,000 BTU/h, about 4.4 GPM at a 70°F winter rise, 10.3 GPM stated maximum; non-condensing gas tankless.

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#2 · Input (BTU/h): 199,000 BTU/h

ThermoMate CZ750NG Natural Gas Tankless Water Heater

199,000 BTU/h, about 4.4 GPM at a 70°F winter rise, 8 GPM stated maximum; non-condensing gas tankless.

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#3 · Input (BTU/h): 199,000 BTU/h

GASLAND E 199 199,000 BTU Natural Gas Tankless Water Heater

199,000 BTU/h, about 4.4 GPM at a 70°F winter rise, 7.6 GPM stated maximum; non-condensing gas tankless.

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#4 · Input (BTU/h): 199,000 BTU/h

GASLAND CE686NG 199,000 BTU Natural Gas Tankless Water Heater

199,000 BTU/h, about 4.4 GPM at a 70°F winter rise, 7.6 GPM stated maximum; non-condensing gas tankless.

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#5 · Input (BTU/h): 199,000 BTU/h

A. O. Smith ATI-540P-N 199,000 BTU Natural Gas Tankless Water Heater

199,000 BTU/h, about 4.4 GPM at a 70°F winter rise, 10 GPM stated maximum; non-condensing gas tankless.

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#6 · Input (BTU/h): 199,000 BTU/h

Rinnai RE199eN Natural Gas Tankless Water Heater

199,000 BTU/h, about 4.4 GPM at a 70°F winter rise, 9.8 GPM stated maximum; non-condensing gas tankless.

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#7 · Input (BTU/h): 190,000 BTU/h

Ranein RH19K-NG 190,000 BTU Natural Gas Tankless Water Heater

190,000 BTU/h, about 4.2 GPM at a 70°F winter rise, 8.5 GPM stated maximum; non-condensing gas tankless.

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#8 · Input (BTU/h): 190,000 BTU/h

VancEpic V-RH19K-NG 190,000 BTU Natural Gas Tankless Water Heater

190,000 BTU/h, about 4.2 GPM at a 70°F winter rise, 8.5 GPM stated maximum; non-condensing gas tankless.

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How to choose between them

Non-condensing units cost less up front but run hotter exhaust and need the vent material their manual lists, often stainless steel.

Our flow estimates use 0.77 for these units, a conservative figure taken from a maker's published flow table.

Rankings follow the rule and order stated above, using makers' published specifications and listed prices. How we research · Disclosure