What it delivers
The VELPAX HWRSQ-18L-001 Propane Tankless Water Heater is a propane tankless with a 68,000 BTU/h burner.
At a 45°F rise (mild inlet water to a 120°F set point) it holds about 2.3 GPM, 1 shower at 2 GPM; in winter, at a 70°F rise, about 1.5 GPM, less than one 2 GPM shower. Run your house through the planner.
The line must deliver about 0.7 gallons of propane 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: connections: 1/2" npt; material: Copper, Stainless Steel; model: HWRSQ-18L-001.
The listing gives dimensions of 13.8 in (W) x 21.7 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
- 68,000 BTU/h input
Trade-offs
- Needs a gas line sized for the load
- Stainless venting costs more
- Scale builds up without flushing
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 | HWRSQ-18L-001 | Retailer |
|---|---|---|
| Dimensions (seller) | 13.8"W x 21.7"H | Retailer |
| Features (seller) | Multiple Safety Protections, Advanced Combustion Technology, LED Smart Digital Display | Retailer |
| Input (maker) | 68,000 BTU/h | Retailer |
| Material | Copper, Stainless Steel | Retailer |
| Fuel | propane | Retailer |
| Connections | 1/2" npt | Retailer |
Rival units at this flow
More gas tankless water heaters rated for similar demand
Final verdict
A solid propane tankless for one shower at a time in cold climates.
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