Gasland MHA18B 18,000 BTU
#3 in PortableFull review
For ventilated garages, offices and workshops that need a rolling 18,000 BTU heater with a full set of shutoffs. The manual rules out homes and living quarters.
Amazon $152.99$152.99
The Gasland MHA18B 18,000 BTU is the better propane heater overall, rated 4.0 to 3.6. The Gasland MHA18B 18,000 BTU leads on turndown and value. The Mr. Heater Little Buddy MH4B wins on warranty. The Mr. Heater Little Buddy MH4B costs $83 less ($69.99 vs $152.99).
Mr. Heater Little Buddy MH4B
#11 in PortableFull review
For heating a small tent, blind or ice shanty with ventilation, where a light one cylinder heater is all that fits. Follow the maker’s vent rule of at least 4 sq in of fresh air.
Amazon $69.99$69.99
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 Gasland MHA18B 18,000 BTU for turndown (turns down to 6,000 BTU vs one heat setting) and value ($8.50 per 1,000 BTU ($152.99, 18,000 BTU) vs $18.42 per 1,000 BTU ($69.99, 3,800 BTU)).
- Choose the Mr. Heater Little Buddy MH4B for warranty (3-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every portable propane heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Gasland MHA18B 18,000 BTU | Mr. Heater Little Buddy MH4B |
|---|---|---|
| Overall rating | 4.0/5 | 3.6/5 |
| Value 25% | 62 $8.50 per 1,000 BTU ($152.99, 18,000 BTU) | 6 $18.42 per 1,000 BTU ($69.99, 3,800 BTU) |
| Safety 30% | 100 CSA listed, low-oxygen shutoff, tip-over shutoff, flame-out shutoff | 100 CSA listed, low-oxygen shutoff, tip-over shutoff, flame-out shutoff |
| Warranty 15% | 0 1-year warranty | 100 3-year warranty |
| Turndown 15% | 95 turns down to 6,000 BTU | 0 one heat setting |
| Ignition 10% | 100 push-button piezo ignition | 100 push-button piezo ignition |
| Fuel options 5% | 50 runs on a bulk tank only | 50 runs on 1 lb cylinders only |
Specifications
| Gasland MHA18B 18,000 BTU | Mr. Heater Little Buddy MH4B | |
|---|---|---|
| Heating | ||
| Heat output | 6,000 to 18,000 BTU | 3,800 BTU |
| Type | Portable | Portable |
| Use | Job sites and garages | Indoor (ventilated) |
| Heats up to | 450 sq ft | 95 sq ft |
| Thermostat | No | No |
| Fan | No | No |
| Fuel and power | ||
| Fuel | Bulk tank | 1 lb cylinder |
| Hose included | Yes | No |
| Ignition | Push-button piezo | Push-button piezo |
| Power needed | None | None |
| Safety | ||
| Safety listing | CSA | CSA |
| Low-oxygen shutoff | Yes | Yes |
| Tip-over shutoff | Yes | Yes |
| Flame-out shutoff | Yes | Yes |
| Build | ||
| Dimensions | 15 x 17.5 x 21.7 in | 12 x 9.75 x 10.2 in |
| Weight | 17.2 lb | 5.8 lb |
| Warranty | 1 year | 3 years |
| Released | - | 2010-01-13 |