DeWalt DXH90FAV 90,000 BTU
#4 in Forced airFull review
For job sites, barns and large garages with fresh air that need more heat than a 65,000 BTU heater. It is a construction heater, not for living spaces.
Amazon $230.77$230.77
The DeWalt DXH90FAV 90,000 BTU is the better propane heater overall, rated 3.5 to 3.1. The DeWalt DXH90FAV 90,000 BTU leads on safety. The Mr. Heater MH85QFAV 85,000 BTU costs $31.72 less ($199.05 vs $230.77).
Mr. Heater MH85QFAV 85,000 BTU
#15 in Forced airFull review
For garages, barns and job sites with fresh air that need strong heat from a 20 lb tank. It is a construction heater, not for living spaces.
Amazon $199.05$199.05
Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the DeWalt DXH90FAV 90,000 BTU for safety (ETL listed, flame-out shutoff vs flame-out shutoff; no safety listing published).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every forced air propane heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | DeWalt DXH90FAV 90,000 BTU | Mr. Heater MH85QFAV 85,000 BTU |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 25% | 41 $2.56 per 1,000 BTU ($230.77, 90,000 BTU) | 47 $2.34 per 1,000 BTU ($199.05, 85,000 BTU) |
| Safety 30% | 80 ETL listed, flame-out shutoff | 40 flame-out shutoff; no safety listing published |
| Warranty 15% | 0 1-year warranty | 0 1-year warranty |
| Turndown 15% | 63 turns down to 50,000 BTU | 59 turns down to 50,000 BTU |
| Ignition 10% | 100 electric ignition | 100 electric ignition |
| Fuel options 5% | 50 runs on a bulk tank only | 50 runs on a bulk tank only |
Specifications
| DeWalt DXH90FAV 90,000 BTU | Mr. Heater MH85QFAV 85,000 BTU | |
|---|---|---|
| Heating | ||
| Heat output | 50,000 to 90,000 BTU | 50,000 to 85,000 BTU |
| Type | Forced air | Forced air |
| Use | Job sites and garages | Job sites and garages |
| Heats up to | 2,250 sq ft | 2,125 sq ft |
| Thermostat | No | No |
| Fan | Yes | Yes |
| Fuel and power | ||
| Fuel | Bulk tank | Bulk tank |
| Hose included | Yes | Yes |
| Ignition | Electric | Electric |
| Power needed | 120 V outlet | 120 V outlet |
| Safety | ||
| Safety listing | ETL | None published |
| Flame-out shutoff | Yes | Yes |
| Build | ||
| Dimensions | - | 11.5 x 18.5 x 14 in |
| Weight | - | 19 lb |
| Warranty | 1 year | 1 year |
| Released | 2012-10 | 2013-12 |