APUS AP-AWH-Q13NG 95,000 BTU Natural Gas Tankless Water Heater

What it delivers

The APUS AP-AWH-Q13NG 95,000 BTU Natural Gas Tankless Water Heater is a non-condensing gas tankless with a 95,000 BTU/h burner and a stated maximum flow of 4.4 GPM. Its listing gives a UEF of 0.81.

At a 45°F rise (mild inlet water to a 120°F set point) it holds about 3.3 GPM, 1 shower at 2 GPM; in winter, at a 70°F rise, about 2.1 GPM, 1 shower at 2 GPM. Size it to your fixtures and climate.

The line must deliver about 92 cubic feet of natural gas an hour when it fires flat out. The requirement calculator adds it up; a licensed fitter confirms the pipe.

Its exhaust runs hot, so the vent must be the material its manual lists, usually stainless; budget for the vent kit.

From the listing: material: 4.42 GPM 95,000BTU; model: AP-AWH-Q13NG; warranty: 2 Year Manufacturer Warranty.

The listing gives dimensions of 5.9 in (W) x 20.55 in (H) and a weight of 19.2 lb.

Warranty, per the listing: 2 Year Manufacturer Warranty.

Right unit for this house?

Install it when

One shower at a time in cold climates
Replacing a gas tank heater

Look at another unit when

More than 1 winter shower at once
Homes without a gas line

Strengths and trade-offs

Strengths

95,000 BTU/h input
Up to 4.4 GPM
UEF 0.81

Trade-offs

Needs a gas line sized for the load
Stainless venting costs more
Needs periodic descaling

Install limits

Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.

Rated performance

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Model number	AP-AWH-Q13NG	Retailer
Dimensions (seller)	5.9"W x 20.55"H	Retailer
Features (seller)	24/7 Customer Service, Anti-Freezing Protection, Easy Installation, Low Water Flow Protection, Overheat Protection 24/7 Customer Service, Anti-Freezing Protection, Easy Installation, Low Water Flow Protection, Overheat Protection	Retailer
Voltage	120 V	Retailer
Max flow (maker)	4.42 GPM	Retailer
Input (maker)	95,000 BTU/h	Retailer
Product weight	19.2 lb	Retailer
Warranty	2 Year Manufacturer Warranty	Retailer
Material	4.42 GPM 95,000BTU	Retailer
UEF (maker)	0.81	Retailer
Fuel	natural gas	Retailer

Rival units at this flow

GASLAND CG360NG 98,500 BTU Natural Gas Tankless Water Heater98,500 BTU/h, up to 4.0 GPM.

ThermoMate CZ360NG 98,500 BTU Natural Gas Tankless Water Heater98,500 BTU/h, up to 4.0 GPM.

Ranein RH10K 100,000 BTU Natural Gas Tankless Water Heater100,000 BTU/h, up to 4.3 GPM.

More gas tankless water heaters rated for similar demand

Full gas tankless water heaters spec grid · Every APUS unit in the catalog

Final verdict

A solid non-condensing gas tankless for one shower at a time in cold climates.

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Questions buyers ask

Is the APUS AP-AWH-Q13NG 95,000 BTU Natural Gas Tankless Water Heater big enough for two showers?

From its 95,000 BTU/h input we estimate about 3.3 GPM at a 45°F rise and 2.1 GPM at a 70°F rise, so 1 two-GPM shower with mild inlet water and 1 in a cold winter. The maker's flow chart for this model is the final word.

What size gas line does the APUS AP-AWH-Q13NG 95,000 BTU Natural Gas Tankless Water Heater need?

At full fire it uses about 92 cubic feet of natural gas an hour. The pipe size depends on the length of the run and every other gas appliance on it; the maker's manual and a licensed gas fitter decide it.