ComfortBilt Alpine HP40
#7 in Pellet stovesFull review
A small, clean burning pellet stove for a single room, cabin or small house where a big stove would overheat the space.
Amazon $1,099$1,099
The ComfortBilt Alpine HP40 is the better stove overall, rated 3.8 to 3.5. The ComfortBilt Alpine HP40 leads on value, emissions and efficiency. The Comfort Glow CGPS2100 wins on convenience. The ComfortBilt Alpine HP40 costs $100 less ($1,099 vs $1,199).
Comfort Glow CGPS2100
#12 in Pellet stovesFull review
A low cost pellet stove for a few rooms or a small home, built by United States Stove Company.
Amazon $1,199$1,199
Prices 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 HP40 for value ($41.91 per 1,000 BTU of EPA tested output ($1,099, 26,224 BTU) vs $51.13 per 1,000 BTU of EPA tested output ($1,199, 23,449 BTU)), emissions (0.7 g/h of smoke particles (EPA) vs 1.1 g/h of smoke particles (EPA)) and efficiency (81% EPA tested efficiency (HHV) vs 78% EPA tested efficiency (HHV)).
- Choose the Comfort Glow CGPS2100 for convenience (up to 40 hours per hopper, thermostat vs burn time not published, thermostat).
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 HP40 | Comfort Glow CGPS2100 |
|---|---|---|
| Overall rating | 3.8/5 | 3.5/5 |
| Efficiency 30% | 100 81% EPA tested efficiency (HHV) | 90 78% EPA tested efficiency (HHV) |
| Value 30% | 41 $41.91 per 1,000 BTU of EPA tested output ($1,099, 26,224 BTU) | 25 $51.13 per 1,000 BTU of EPA tested output ($1,199, 23,449 BTU) |
| Emissions 15% | 78 0.7 g/h of smoke particles (EPA) | 56 1.1 g/h of smoke particles (EPA) |
| Warranty 10% | 22 3-year warranty | 50 warranty not published (neutral score used) |
| Convenience 15% | 55 burn time not published, thermostat | 69 up to 40 hours per hopper, thermostat |
Specifications
| ComfortBilt Alpine HP40 | Comfort Glow CGPS2100 | |
|---|---|---|
| EPA certification | ||
| EPA certified | Yes (2020 standard) | Yes (2020 standard) |
| Efficiency (HHV) | 81% | 78% |
| Emissions | 0.7 g/h | 1.1 g/h |
| Tested heat output | 13,458 to 26,224 BTU | 10,300 to 23,449 BTU |
| Heating | ||
| Fuel | Wood pellets | Wood pellets |
| Type | Freestanding | Freestanding |
| Advertised output | 26,224 BTU | - |
| Heats up to | 1,500 sq ft | 2,200 sq ft |
| Catalytic | No | No |
| Blower | Included | Included |
| Thermostat | Yes | Yes |
| App control | No | No |
| Fuel | ||
| Hopper | 25 lb | 60 lb |
| Burn time per hopper | - | 40 h |
| Power needed | 120 V outlet | 120 V outlet |
| Installation | ||
| Flue size | 3 in | 3 in |
| Mobile home approved | Yes | Yes |
| Dimensions | 17 x 18 x 27 in (W x D x H) | 23 x 23.5 x 44.5 in (W x D x H) |
| Weight | 180 lb | - |
| Warranty | 3 years | - |
| Released | 2023-02 | - |