Forge & Flame Accentra52i-TC 24"

Expect it to heat about 1,250–2,500 sq ft, enough to carry much of a house from the fireplace. It's rated 76% efficient on the higher heating value scale and is EPA certified at 1.1 g/hr under the 2020 particulate emission standards.

It holds 64.5 lb of pellets instead of 47.5 lb, so you get the same heat with longer stretches between fills. The tradeoff is size: the standard 24-inch unit needs a 24-inch fireplace opening height, while the 20-inch version fits shorter openings.

Yes, it's made for masonry or factory-built wood fireplaces. In masonry, the minimum vent is 4-inch stainless flex pipe running at least 12 inches past a sealed damper plate. Factory-built fireplaces need the manufactured fireplace installation kit, and older or non-HT chimneys need a full-height liner.

Yes, it's approved for mobile homes when it isn't in a sleeping room. A Forge & Flame outside air kit must be installed, the insert must be grounded to the home's frame with at least 8 AWG copper wire, and only listed Class PL pellet vent can be used.

You set it on the touch control panel, and the wireless room sensor tells the insert the temperature where you want to feel the heat. The Easy Touch screen also handles scheduling, fuel gauges, diagnostics, and cleaning prompts, while the exhaust sensing probe adjusts output to hold your setting.

It needs household power, and when the combustion blower stops, exhaust can seep into the room. The manual recommends a backup in outage-prone areas: the tested TrippLite INTERNET750U UPS for a safe shutdown, or an approved inverter/charger on a 12-volt deep-cycle battery for up to eight hours of operation.

The installation manual calls for 12 inches from the insert body to a sidewall and to a 12-inch-deep mantel, with zero clearance from 3/4-inch trim to the cast surround. Floor protection must extend 6 inches in front of the glass and be at least 16.5 inches deep by 30 inches wide.

Choose matte black or Majolica Brown. The small surround is standard, and you can add a surround extension or a custom surround up to 60 by 47 inches, a ceramic log with its bracket, a service rail kit, or zero-clearance kits. A dealer trained on this model has to order and install it.