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    Shelter EPA Certified SF4200 Wood Burning Outdoor Furnace



    Now Using Clean Burn Technology.

    Shelter’s new EPA Certified SF4200 wood burning outdoor furnace is designed to save valuable interior space and take the job outside! Superbly engineered to maximize comfort by delivering warmth to the largest of residences, while also boasting UL approval for mobile and modular homes, the SF4200 exceeds expectation. Providing longer burn times and distributing more heat than pre-EPA approved furnaces, this Shelter unit delivers results. 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 guarantees reliable distribution and whole-home circulation of heat while the digital thermostat monitors the temperature to maintain comfort ensuring maximum performance with less user interaction. Loaded with features that the competition considers options or upgrades, the SF4200 heats up to 4,000 sq. ft. confidently with its Clean Burn Technology. Featuring a 5.7 cu. ft. firebox accepting 26” logs, the SF4200 distributes 170,000 BTUs of heat throughout your home. Highly engineered airflow and well insulated panels reduce the installation clearance of your SF4200 to a minimum of 12-inches (max. 25-feet) from your home. Equipped with our patented Heat Dump, which protects critical electrical components in the event of a power failure, Shelter’s SF4200 continues to outperform the competition. Our exclusive 360° cast iron roller grate system and stainless-steel ash pan enable ease of maintenance and deliver high efficiency furnace operation. The SF4200 rear-mounted draft blower and side-mounted electrical enclosure streamline the design of our outdoor model. 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, 1800 CFM Blower
    • 360۠° Cast Iron Roller Grate System with Easy Ash Removal
    • Pre-Wired Electrical Components
    • Waterproof, Powder Coated Exterior Finish
    • Integrated Legs Providing Raised Base and Floor Clearance
    • Weight: 755 lbs.
    • Overall Installed Dimensions: W: 29 ½” D: 58” H: 55”
    • Low Clearance to Combustibles: Side: 6” Back: 12”
    • Standard 6” Chimney Connection
    • Standard 10” Warm Air Connection
    • Standard 12" Return Air Connection
    • 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)
    SF4200 29 ½” x 58” x 55” 755
    Manufacturer # Shipping WxDxH (in) Shipping Weight (lbs)
    SF4200 32” x 58” x 64” 800