Forge & Flame TSC90

The Forge & Flame TSC90 is rated to heat 1,100–2,200 sq ft. The manual ties the upper figure to your climate zone, so a well-insulated home in a milder area gets closer to the top of that range than a drafty one in a cold region.

It uses 3-inch or 4-inch type L or PL pellet pipe and can vent straight out an exterior wall or run vertically. The manual recommends 4-inch pipe once you need more than two 90° elbows or more than 15 feet of venting, and any horizontal run past 48 inches needs at least 60 inches of added vertical pipe.

No. The TSC90 needs 110-volt power for its fans and controls, and the manual notes it hasn't been tested with a third-party battery backup. If you plan to run it on a generator, the manual recommends a steady-state generator for the best performance.

The 90 lb hopper holds enough pellets for more than two days of continuous burning, according to the brochure. That figure is for the low setting, so you'll refill sooner when you run the stove harder on cold days.

You pick a comfort level on the built-in digital thermostat and the TSC90 adjusts its output to keep the room there. If you'd rather sense temperature from another spot, an external thermostat is sold separately, and you set the stove's settings menu to EXTERNAL to use it.

Yes. The TSC90 is mobile home approved, and the outside air kit that ships with it must be installed in that case. The manual also requires grounding the stove to the home's frame with #8 copper wire and bolting it to the floor through the holes provided.

It must sit on a non-combustible floor or hearth pad. Set straight back with vertical venting, it needs 3 inches from the back wall to the pellet pipe and 13 inches from a side wall, plus 7 inches above the top and 48 inches clear in front; vented horizontally, the back can come within 2 inches of the wall.

Yes. The TSC90 has an 88% efficiency rating and is certified to the EPA's 2020 particulate standard at 1.11 grams per hour. The brochure says PelPro stoves meet the emissions rules of all 50 states, including Washington, Oregon, and California.