The SF 2500 is a hot-air furnace built to maintain clean, consistent temperatures throughout your entire home. An advanced filtering system and automatic blowers help ensure warmth and comfort all year round.

  • 120,000 BTUs — heats 1,900 to 3,200+ square feet, based on climate and home efficiency
  • Harman Grate System extends heating by completely burning fuel to fine ash
  • Spiral chamber ensures consistent heat levels
  • 22 maximum log length (Wood for fire startup only!*) / pea, nut or stove-sized coal


Model Specifications

Front Width 26 3/4″
Height 47 1/2″
Depth 31″
BTU/Hour Input 120,000
Heating Capacity 3,200 sq ft.

Efficiency Chart

Heat output will vary depending on the type of fuel used. The flame and ember appearance may vary based on the type of fuel burned and the venting configuration used. Actual product appearance, including flame may differ from image shown. Refer to the Owners Manual for complete clearance requirements and specifications. Product specifications and pricing subject to change without notice. For testing and listing information please refer to the owners/installation manual.

*For select products: Heating capacity to be used as a guide only. See your local dealer for help in determining the product that best suits your heating needs based on climate and home efficiency.



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