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Enviro M55-FS-2: is it worth buying?

Pellet stove by Sherwood Industries. Also sold as Enviro M55C-FS-2, Enviro M55C-FPI-2, FPI GC60-2, FPI GCI60-2.

A good pick if you want lots of heat.

The catch: more smoke than most new stoves.

How it compares

Against all 109 new pellet stoves, from the EPA's lab tests. Longer bar = better.

HeatBetter than 79%
up to 38,437 BTU an hour
Clean burningBetter than 0%
1.9 grams of smoke an hour (legal limit 2)
Heat from each logBetter than 56%
78% efficient

Source: EPA certification record 5033, checked Nov 1, 2026. Smoke compared as a share of each stove's legal limit, since stoves tested on real cordwood get a higher limit.

Better-matched picks with similar heat

If one of these matters more to you, start here.

Want less smoke? 509 Fabrications Mini Me Cleaner than 98% of new pellet stoves, with similar heat.
Want to burn less wood? ComfortBilt HP42-Alpine Gets more heat from each log than 99% of new pellet stoves.

Other questions

What size chimney liner does it need?

Match the liner to the flue collar size in the Enviro M55-FS-2 owner's manual, and have a certified installer confirm it fits your chimney.

It's non-catalytic. What does that mean?

There's no catalytic combustor, so no combustor part to replace down the road.

What do these numbers mean?

The EPA tests every new stove before it can be sold. "Heat" is the most heat it put out in the test. "Clean burning" is smoke per hour. "Heat from each log" is the share of the wood's energy that reaches your room. Firebox size tells you how much wood it holds, which drives how long it burns.

Check today's price: Enviro M55-FS-2