

Sunfire Sf120 120,000 Btu 2800 Square-Foot Area Diesel/kerosene Radiant Heater
Key item features
- Powerful Heating: Delivers 120,000 BTUs, heating up to 2800 square feet of indoor commercial space.
- Dual Fuel: Operates efficiently on both diesel and kerosene, requiring a 120V power source.
- Clean Operation: Features XtremeClean technology for quiet, odorless, and smokeless radiant heating.
- Thermostat Ready: Wired for optional use with standard mechanical or battery-operated wall thermostats (not 120V).
- Easy Maintenance: RAPIDACCESS hatch allows quick and simple access to the nozzle assembly for maintenance.
- Portable Design: Equipped with a perfectly designed frame, wheels, and lifting bracket for easy transport.
Specs
- Fuel typeDiesel
- Space heater typeRadiant Heaters
- Power typeGas
- Maximum room size2800 sq ft
- Rec. useIndoor
- Btu120000
- Free shipping
Free 30-day returns
(Only one option can be selected at a time)
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About this item
Product details
- 120,000 Btu's, indoor safe for commercial use, heats up to 2800 Sq-Ft., dual fuel (diesel/kerosene), wired for optional thermostat use.
- Quiet - Low noise compared to forced air, torpedo-style heaters.
- Clean - Advanced technology offering a pure, odorless, smokeless flame.
- Safe - Safely use inside your shop, warehouse, pole barn, or garage.
- RAPIDACCESS™ Easy Maintenance Hatch: Allows quick access to the nozzle assembly making tune-ups and maintenance ultra-fast and easy. This advanced system is another reason why SUNFIRE offers the ultimate heating experience.
- Thermostat Capability - The SF120 is wired for optional thermostat use. you can use any standard mechanical or battery-operated wall thermostat of your choice. Do not use a thermostat requiring 120V of power to operate (Thermostat not included).
Specifications
Fuel type
Space heater type
Power type
Maximum room size
Warranty
Warranty information
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Customer ratings & reviews
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Showing 1-3 of 9 reviews
Winter usually shuts down our
Winter usually shuts down our garage projects but that changed after learning about the Sunfire SF120. The first time we turned it on, the cold disappeared within minutes - not with blasting air, but with a steady, sun-like warmth that let me ditch my bulky layers and work comfortably for hours. It worked so well in the garage I got the idea to bring it along with us for a tailgating party! While other people huddled under blankets, our party was standing comfortably, hands free, enjoying the moment. The radiant heat cuts through the cold air and makes being outdoors enjoyable instead of something to endure. Winter usually shuts down our garage projects but that changed after learning about the Sunfire SF120. The first time we turned it on, the cold disappeared within minutes - not with blasting air, but with a steady, sun-like warmth that let us ditch our bulky layers and work comfortably for hours. It worked so well in the garage I got the idea to bring it along with us for a tailgating party! While other people huddled under blankets, our party was standing comfortably, hands free, enjoying the moment. The radiant heat cut through the cold air and made being outdoors enjoyable instead of something to endure. Indoors or Outside - The Sunfire SF120 isn't just a heater - it's freedom. Freedom to keep working, keep playing and keep living your best life no matter how cold it gets!
Perfect Heater for Brutal Winters
Living in Wisconsin, winter is no joke—and this Sunfire Heater has been an absolute game changer. From subzero mornings to those long, windy nights, this heater delivers fast, consistent warmth exactly where you need it. It heats up quickly, is incredibly easy to use, and doesn't take up much space, making it perfect for bedrooms, offices, basements, or even drafty older homes (which we have plenty of here). I love that it keeps the room comfortably warm without drying the air or driving up energy costs. The safety features give real peace of mind, especially during overnight use, and it runs quietly—no loud clicking or buzzing like other heaters I've tried. It's powerful without being overpowering. If you live in Wisconsin (or anywhere with harsh winters), the Sunfire Heater is a must-have. Reliable, efficient, and cozy—this heater punches way above its weight. Highly recommend for surviving—and actually enjoying—winter.
Great heater
So happy with the Sunfire! It's quiet, user friendly, and odorless. It's great for heating up the garage and for outside gatherings. And made is the USA!













