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    Shelter EPA Certified SF3100 Wood Burning Indoor Furnace



    Now Using Clean Burn Technology.

    Shelter’s new EPA Certified SF3100 wood burning indoor furnace is superbly engineered to maximize comfort by delivering warmth to the largest of residences. Providing longer burn times and distributing more heat than pre-EPA approved furnaces, this Shelter unit exceeds expectation. Initiated by our thermostatically controlled draft blower and self-regulating secondary air control system, our longer burn times eliminate worry between loads. Shelter’s use of the industry’s strongest high capacity, 3-speed adjustable draft blower ensures reliable distribution and whole-home circulation of heat. The furnace’s digital thermostat then monitors the temperature to maintain comfort ensuring maximum performance with less user interaction. Loaded with features that the competition considers options or upgrades, the SF3100 heats up to 4,000 sq. ft. confidently with its Clean Burn Technology. Featuring a 5.7 cu. ft. firebox, the SF3100 accepts 26” logs and distributes 170,000 BTUs of heat throughout your home. This Shelter furnace is equipped with our exclusive 360° cast iron roller grate system and stainless-steel ash pan enabling ease of maintenance and maintaining high efficiency furnace operation. The SF3100 rear-mounted draft blower and side-mounted electrical enclosure streamline the design of our top of the line indoor model. Our customers enjoy its easy access drop-in filter which keeps the blower clean and maximizes clean air distribution. Green and efficient, Shelter furnaces are peak performers generating longer burn times and utilizing less wood. Skillfully manufactured in St. Louis, Missouri, the SF3100 proudly displays its MADE IN THE USA label.

    Shelter. Green & Efficient: Less Wood, More Comfort.

    • Recommended Heating Area Up to 4,000 sq. ft.
    • EPA Certified
    • Whole-Home Heating Solution
    • Extended Burn Time [Up to 15 Hours] with Clean Burn Technology
    • 5.7 cu. ft. Firebox
    • Stainless Steel Lined Firebox
    • Accepts 26” Logs
    • Maximum 170,000 BTUs/hr Output
    • Digital Thermostat w/ 50cfm Draft Blower
    • 200°F Distribution Air Temperature @ Duct Exit
    • Tested Emissions: 0.29 lbs./MMBtu
    • High Capacity, 3-Speed Adjustable, 1800 CFM Blower
    • 360۠° Cast Iron Roller Grate System with Easy Ash Removal
    • Pre-Wired Electrical Components
    • Powder Coated Finish
    • Integrated Legs Providing Raised Base and Floor Clearance
    • Weight: 635 lbs.
    • Overall Installed Dimensions: W: 25 ¾” D: 50 ¼” H: 52 ½”
    • Low Clearance to Combustibles: Side: 6” Back: 12”
    • Standard 6” Chimney Connection
    • Standard 8” Air Duct Connections
    • Shelter Furnace Installation Video
    • 5-Year Firebox and Grate Warranty, 1-Year Distribution Blower Warranty, 1-Year Electrical Components Warranty
    • Made in the USA
    • Toll Free Customer Support | 1-800-325-7076
    Manufacturer # Width x Depth x Height (in) (in) Retail Weight (lbs)
    SF3100 25 ¾” x 50 ¼” x 52 ½” 635
    Manufacturer # Shipping WxDxH (in) Shipping Weight (lbs)
    SF3100 32” x 48” x 75” 680