A mid-size pellet stove for heating a few rooms on a long run per hopper, sold direct by ComfortBilt.
ComfortBilt $1,299The ComfortBilt Alpine HP41 is the better stove overall, rated 3.5 to 3.0. The ComfortBilt Alpine HP41 leads on value and efficiency. The ComfortBilt HP21 Pellet Stove wins on warranty. The ComfortBilt Alpine HP41 costs $650 less ($1,299 vs $1,949).
A traditional looking mid-size pellet stove for a living area, but newer ComfortBilt models burn cleaner and cost less.
ComfortBilt $1,949Prices were last checked October 31, 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 ComfortBilt Alpine HP41 for value ($40.40 per 1,000 BTU of EPA tested output ($1,299, 32,155 BTU) vs $61.38 per 1,000 BTU of EPA tested output ($1,949, 31,753 BTU)) and efficiency (80% EPA tested efficiency (HHV) vs 76% EPA tested efficiency (HHV)).
- Choose the ComfortBilt HP21 Pellet Stove for warranty (5-year warranty vs 3-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every pellet stoves stove; a clear win is highlighted. How we rank explains each one.
| Factor weight | ComfortBilt Alpine HP41 | ComfortBilt HP21 Pellet Stove |
|---|---|---|
| Overall rating | 3.5/5 | 3.0/5 |
| Efficiency 30% | 100 80% EPA tested efficiency (HHV) | 80 76% EPA tested efficiency (HHV) |
| Value 30% | 44 $40.40 per 1,000 BTU of EPA tested output ($1,299, 32,155 BTU) | 10 $61.38 per 1,000 BTU of EPA tested output ($1,949, 31,753 BTU) |
| Emissions 15% | 35 1.6 g/h of smoke particles (EPA) | 39 1.5 g/h of smoke particles (EPA) |
| Warranty 10% | 22 3-year warranty | 44 5-year warranty |
| Convenience 15% | 41 up to 20 hours per hopper, thermostat | 36 up to 16 hours per hopper, thermostat |
Specifications
| ComfortBilt Alpine HP41 | ComfortBilt HP21 Pellet Stove | |
|---|---|---|
| EPA certification | ||
| EPA certified | Yes (2020 standard) | Yes (2020 standard) |
| Efficiency (HHV) | 80% | 76% |
| Emissions | 1.6 g/h | 1.5 g/h |
| Tested heat output | 12,744 to 32,155 BTU | 12,349 to 31,753 BTU |
| Heating | ||
| Fuel | Wood pellets | Wood pellets |
| Type | Freestanding | Freestanding |
| Advertised output | 32,000 BTU | 32,000 BTU |
| Heats up to | 2,200 sq ft | 2,400 sq ft |
| Catalytic | No | No |
| Blower | Included | Included |
| Thermostat | Yes | Yes |
| App control | No | No |
| Fuel | ||
| Hopper | 52 lb | 40 lb |
| Burn time per hopper | 20 h | 16 h |
| Power needed | 120 V outlet | 120 V outlet |
| Installation | ||
| Mobile home approved | Yes | Yes |
| Dimensions | 18.5 x 23 x 34.5 in (W x D x H) | 23.5 x 24 x 33 in (W x D x H) |
| Weight | - | 275 lb |
| Warranty | 3 years | 5 years |
| Released | 2024-07 | - |
