Forge & Flame Accentra52i-TC Pellet Insert, Powered by Harman Technology

The Harman Accentra52i-TC adds thermostat-controlled pellet heat to an existing fireplace. It slides into the opening, and two 134 cfm distribution blowers push warm air out into the room. You set the temperature on the EASY Touch Control, and the wireless room sensor and Harman's Exhaust Sensing Probe work to hold it within one degree.

It comes in two sizes to match your fireplace. The 20 inch model needs a fireplace opening at least 20 inches tall and holds 47.5 lb of pellets, and the 24 inch model needs at least 24 inches of height and holds 64.5 lb. Both need at least 24-7/8 inches of width and 15-9/16 inches of depth. Both come in Matte Black or Porcelain Majolica Brown, with an illuminated glass hopper lid and flame-reactive mirrored glass.

What Makes the Accentra52i-TC Different

• Two distribution blowers. Two 134 cfm blowers move heat out of the fireplace and into the room.
• Temperature held within one degree. The Exhaust Sensing Probe constantly adjusts output to hold your set room temperature within one degree, according to Harman.
• Insert track system. The insert rides on a track system, which makes it easier to slide out when it needs service.
• Programmable thermostat built in. EASY Touch Control includes a programmable thermostat, and the power cord can exit either side of the insert.
• Two finishes. Choose Matte Black or Porcelain Majolica Brown in either size.

This listing covers the Harman Accentra52i-TC pellet insert in four versions: 20 in Matte Black (1-90-584201-1), 24 in Matte Black (1-90-584241-1), 20 in Porcelain Majolica Brown (1-90-584201-14), and 24 in Porcelain Majolica Brown (1-90-584241-14).

Key Specifications

• Fuel: Wood pellets
• Minimum fireplace opening, 20 in model: 24-7/8 in W x 20 in H x 15-9/16 in D
• Minimum fireplace opening, 24 in model: 24-7/8 in W x 24 in H x 15-9/16 in D
• Hopper capacity: 47.5 lb (20 in model), 64.5 lb (24 in model)
• BTU input: 11,200 to 50,300 BTU/hr
• EPA-tested output: 7,400 to 39,700 BTU/hr
• Efficiency (HHV): 76.1% (weighted average)
• Efficiency (LHV): 81.3% (weighted average)
• Particulate emissions (EPA certified): 1.1 g/hr
• EPA certification: 2020 particulate emission standard, cert. no. 84-17
• Blowers: Two 134 cfm distribution blowers
• Controls: EASY Touch Control, Wireless Room Sensor, ESP control, built-in programmable thermostat
• Vent size: 4 in pellet vent, 4 in stainless liner in the chimney (3 in flex for outside air)
• Weight: 460 lb
• Power cord: 14 ft, can exit either side
• Included: Insert track system, illuminated glass hopper lid, flame-reactive mirrored glass, wireless room sensor, standard surround
• Sold separately: Surround extension, direct vent wall pass-through, 4 in stainless flex pipe, ceramic log (log bracket kit required), service rail kit, zero clearance kits, outside air adapter

Input, output, and efficiency are Harman's ratings. How an insert performs depends on your fireplace, chimney liner, home layout, and insulation.

Ownership & Maintenance

The Accentra52i-TC is made for wood pellets. Its track system makes it easier to slide the insert forward for service, and buying from us means support after the sale.

Bring us your fireplace measurements, or a few photos, at our Auburn, Brunswick, and Yarmouth showrooms. We'll confirm which size fits, then plan the liner, hearth protection, and installation. You can also browse more pellet inserts.