What it delivers
The Marey GA24CSALP 170,000 BTU Propane Tankless Water Heater is a propane tankless with a 170,000 BTU/h burner.
Flow depends on how cold the incoming water is. Our estimate from its input: 5.8 GPM at a 45°F rise, falling to 3.7 GPM at 70°F, which is 1 shower at 2 GPM on a cold-climate winter day. Run your house through the planner.
At full fire it burns about 1.9 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.
Its exhaust runs hot, so the vent must be the material its manual lists, usually stainless; budget for the vent kit.
Also on the listing: features: LED Display, Overheat Protection, Self-Modulating; material: Metal; model: GA24CSALP; warranty: 5 years limited parts, no labor.
The listing gives dimensions of 17.1 in (W) x 26.2 in (H) and a weight of 40.8 lb.
Warranty, per the listing: 5 years limited parts, no labor.
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
- 170,000 BTU/h input
Trade-offs
- Gas line may need upsizing
- Stainless venting costs more
- Annual flushing on hard water
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 | GA24CSALP | Retailer |
|---|---|---|
| Dimensions (seller) | 17.1"W x 26.2"H | Retailer |
| Features (seller) | LED Display, Overheat Protection, Self-Modulating | Retailer |
| Voltage | 120 V | Retailer |
| Input (maker) | 170,000 BTU/h | Retailer |
| Product weight | 40.8 lb | Retailer |
| Warranty | 5 years limited parts, no labor | Retailer |
| Material | Metal | Retailer |
| Fuel | propane | 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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