What it delivers
The RIWORY RWRHT007 85,000 BTU Propane Tankless Water Heater is a propane tankless with a 85,000 BTU/h burner and a stated maximum flow of 3.6 GPM.
Flow depends on how cold the incoming water is. Our estimate from its input: 2.9 GPM at a 45°F rise, falling to 1.9 GPM at 70°F, which is less than one 2 GPM shower on a cold-climate winter day. Check it against your own fixtures.
At full fire it burns about 0.9 gallons of propane an hour. The gas line has to carry that on top of the furnace, range and dryer; a gas fitter sizes the pipe from its length and the total load.
Non-condensing indoor units run hot exhaust and vent in the maker's listed vent system (often stainless Category III), which costs more than plastic.
Also on the listing: connections: 3/4" npt; material: Copper, Metal; model: RWRHT007.
The listing gives dimensions of 13.7 in (W) x 21.3 in (H).
Right unit for this house?
Install it when
- One shower at a time in cold climates
- Propane homes
- 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
- 85,000 BTU/h input
- Up to 3.6 GPM
Trade-offs
- Gas line may need upsizing
- 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 | RWRHT007 | Retailer |
|---|---|---|
| Dimensions (seller) | 13.7"W x 21.3"H | Retailer |
| Voltage | 120 V AC | Retailer |
| Max flow (maker) | 3.6 GPM | Retailer |
| Input (maker) | 85,000 BTU/h | Retailer |
| Material | Copper, Metal | Retailer |
| Fuel | Propane | Retailer |
| Connections | 3/4" npt | Retailer |
Rival units at this flow
More gas tankless water heaters rated for similar demand
Final verdict
A practical propane tankless for one shower at a time in cold climates.
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