The Mr. Heater Little Buddy MH4B rates 3.6 among portable propane heaters; the Dura Heat TT-15CSA Tank Top rates 3.2 among tank top ones. The Dura Heat TT-15CSA Tank Top costs $20 less ($49.99 vs $69.99).
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 $69.99For job sites and outdoor work where a certified, low-cost 15,000 BTU tank top that turns down far is the goal. Give it the fresh air opening the manual asks for.
Amazon $49.99Prices 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.
These two sit in different type classes (portable and tank top), 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 Little Buddy MH4B | Dura Heat TT-15CSA Tank Top |
|---|---|---|
| Overall rating | 3.6/5 | 3.2/5 |
| Value 25% | 6 $18.42 per 1,000 BTU ($69.99, 3,800 BTU) | 42 $3.33 per 1,000 BTU ($49.99, 15,000 BTU) |
| Safety 30% | 100 CSA listed, low-oxygen shutoff, tip-over shutoff, flame-out shutoff | 90 CSA listed, tip-over shutoff, flame-out shutoff |
| Warranty 15% | 100 3-year warranty | 0 1-year warranty |
| Turndown 15% | 0 one heat setting | 57 turns down to 9,000 BTU |
| Ignition 10% | 100 push-button piezo ignition | 0 lit by hand |
| Fuel options 5% | 50 runs on 1 lb cylinders only | 50 runs on a bulk tank only |
| Mr. Heater Little Buddy MH4B | Dura Heat TT-15CSA Tank Top | |
|---|---|---|
| Heating | ||
| Heat output | 3,800 BTU | 9,000 to 15,000 BTU |
| Type | Portable | Tank top |
| Use | Indoor (ventilated) | Job sites and garages |
| Heats up to | 95 sq ft | - |
| Thermostat | No | No |
| Fan | No | No |
| Fuel and power | ||
| Fuel | 1 lb cylinder | Bulk tank |
| Hose included | No | No |
| Ignition | Push-button piezo | By hand |
| Power needed | None | None |
| Safety | ||
| Safety listing | CSA | CSA |
| Low-oxygen shutoff | Yes | - |
| Tip-over shutoff | Yes | Yes |
| Flame-out shutoff | Yes | Yes |
| Build | ||
| Dimensions | 12 x 9.75 x 10.2 in | 8.25 x 6.75 x 11.5 in |
| Weight | 5.8 lb | 3 lb |
| Warranty | 3 years | 1 year |
| Released | 2010-01-13 | - |
