ComfortBilt HP22i Pellet Insert vs ComfortBilt Alpine HP42

Last updated: October 31, 2026

The ComfortBilt Alpine HP42 rates 4.0 among pellet stoves stoves; the ComfortBilt HP22i Pellet Insert rates 3.5 among inserts ones. The ComfortBilt Alpine HP42 costs $1,200 less ($1,299 vs $2,499).

ComfortBilt HP22i Pellet Insert vs ComfortBilt Alpine HP42

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.

Scores side by side

These two sit in different type classes (pellet stoves and inserts), 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 weightComfortBilt Alpine HP42ComfortBilt HP22i Pellet Insert
Overall rating4.0/53.5/5
Efficiency 30%100 86% EPA tested efficiency (HHV)100 81% EPA tested efficiency (HHV)
Value 30%66 $30.66 per 1,000 BTU of EPA tested output ($1,299, 42,370 BTU)30 $61.42 per 1,000 BTU of EPA tested output ($2,499, 40,689 BTU)
Emissions 15%56 1.1 g/h of smoke particles (EPA)61 1 g/h of smoke particles (EPA)
Warranty 10%22 3-year warranty44 5-year warranty
Convenience 15%80 up to 80 hours per hopper, thermostat38 up to 18 hours per hopper, thermostat

Specifications

ComfortBilt Alpine HP42ComfortBilt HP22i Pellet Insert
EPA certification
EPA certifiedYes (2020 standard)Yes (2020 standard)
Efficiency (HHV)86%81%
Emissions1.1 g/h1 g/h
Tested heat output14,567 to 42,370 BTU12,820 to 40,689 BTU
Heating
FuelWood pelletsWood pellets
TypeFreestandingFireplace insert
Advertised output42,000 BTU40,689 BTU
Heats up to2,800 sq ft2,800 sq ft
CatalyticNoNo
BlowerIncludedIncluded
ThermostatYesYes
App controlNoNo
Fuel
Hopper120 lb47 lb
Burn time per hopper80 h18 h
Power needed120 V outlet120 V outlet
Installation
Flue size-3 in
Mobile home approvedYesYes
Dimensions24.75 x 27 x 40 in (W x D x H)-
Weight-262 lb
Warranty3 years5 years
Released2024-04-

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