Mr. Heater MH540T 540° Tank Top
#9 in Tank topFull review
For crews on open job sites, loading docks and sidelines who want the most heat a single tank top gives, in every direction. Use it only where fresh air moves freely.
Amazon $77.99$77.99
The Mr. Heater MH540T 540° Tank Top rates 3.0 among tank top propane heaters; the Dyna-Glo Workhorse LPFA40WH rates 2.6 among forced air ones. The Mr. Heater MH540T 540° Tank Top costs $43.53 less ($77.99 vs $121.52).
Dyna-Glo Workhorse LPFA40WH
#18 in Forced airFull review
For small garages, sheds and job sites with fresh air that need cheap, simple heat. It is a construction heater, not for living spaces.
Amazon $121.52$121.52
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.
Scores side by side
These two sit in different type classes (tank top and forced air), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Mr. Heater MH540T 540° Tank Top | Dyna-Glo Workhorse LPFA40WH |
|---|---|---|
| Overall rating | 3.0/5 | 2.6/5 |
| Value 25% | 90 $1.73 per 1,000 BTU ($77.99, 45,000 BTU) | 31 $3.04 per 1,000 BTU ($121.52, 40,000 BTU) |
| Safety 30% | 40 tip-over shutoff, flame-out shutoff; no safety listing published | 40 flame-out shutoff; no safety listing published |
| Warranty 15% | 0 1-year warranty | 0 1-year warranty |
| Turndown 15% | 48 turns down to 30,000 BTU | 0 one heat setting |
| Ignition 10% | 0 lit by hand | 100 push-button piezo ignition |
| Fuel options 5% | 50 runs on a bulk tank only | 50 runs on a bulk tank only |
Specifications
| Mr. Heater MH540T 540° Tank Top | Dyna-Glo Workhorse LPFA40WH | |
|---|---|---|
| Heating | ||
| Heat output | 30,000 to 45,000 BTU | 40,000 BTU |
| Type | Tank top | Forced air |
| Use | Job sites and garages | Job sites and garages |
| Heats up to | 1,125 sq ft | - |
| Thermostat | No | No |
| Fan | No | Yes |
| Fuel and power | ||
| Fuel | Bulk tank | Bulk tank |
| Hose included | No | Yes |
| Ignition | By hand | Push-button piezo |
| Power needed | None | 120 V outlet |
| Safety | ||
| Safety listing | None published | None published |
| Low-oxygen shutoff | No | - |
| Tip-over shutoff | Yes | - |
| Flame-out shutoff | Yes | Yes |
| Build | ||
| Dimensions | 22.6 x 11.6 x 16.8 in | 8.3 x 19.3 x 15.2 in |
| Weight | 5.5 lb | 14 lb |
| Warranty | 1 year | 1 year |
| Released | 2015-09 | - |