The Accentra 52i is the latest, upgraded edition of the best-selling Accentra Insert. Now, Harman® PelletPro™ and ESP Technology deliver 85% efficiency and a 10,000 increase in BTU output, while still providing powerful, even heat within 1 degree. And a reengineered design provides even easier maintenance—for up to 50% less cleaning time than any other pellet appliance available.

53,000 BTUs — heats 900 to 2,600 square feet, based on climate and home efficiency
Up to 64.5 lb hopper capacity
81.7% efficiency


Automatic ignition and temperature control
Flame reactive mirrored glass (standard feature)


EPA Certified
Front Width: 41-13/16
Height: 32-1/8
Depth: 29-5/16
Minimum Opening Width: 25-1/8
Minimum Opening Height (1-90-574240): 24-1/4
Minimum Opening Height (1-90-574220): 22-1/4
Minimum Opening Height (1-90-574200): 20-1/4
Minimum Opening Depth: 15-13/16
Viewing Area: 176 sq. in.
BTU/Hour Input1: 13,800-53,000
Efficiency2: 81.7%
Emissions: 1.5g/hr
Heating Capacity*: 900 - 2,600 sq ft.

1 EPA tested input
2 Weighted Average LHV (Low Heating Value) Efficiency


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