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US Stove AP5790E: is it worth buying?
Pellet stove by United States Stove Company. Also sold as VG5790E, KP5790E, KP5790-W, US5790E, CGPS2200, DH4800 and more.
A middle-of-the-road pellet stove: no standout strengths in the EPA tests.
Compare it with the better-matched picks below before you buy.
How it compares
Against all 109 new pellet stoves, from the EPA's lab tests. Longer bar = better.
Source: EPA certification record 5185, 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.
Can I use it where I live?
Other questions
What size chimney liner does it need?
Match the liner to the flue collar size in the US Stove AP5790E owner's manual, and have a certified installer confirm it fits your chimney.
It's a hybrid. What does that mean?
It combines a catalytic combustor with the secondary-burn design non-catalytic stoves use. The combustor is a wear part that eventually needs replacing.
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.