Gas garage heaters are an excellent solution for keeping your workspace warm and comfortable during the colder months. In 2025, the market offers a variety of top-rated models that cater to different needs and budgets, ensuring you can find the perfect fit for your garage. From efficient heating capabilities to user-friendly features, these heaters are designed to provide reliable warmth while maintaining safety and efficiency. Whether you need a compact unit or a more powerful option, the best gas garage heaters will transform your garage into a cozy environment.
Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black
- 50,000 BTU per hour heats up to 1250 sq. ft.
- Powered exhaust allows for vertical or horizontal venting
- Easy outside access to thermostat and A/C terminals and gas connection
- Natural Gas to Liquid Propane conversion kit and 2 angle brackets for ceiling mount included
- Minimum 8 ft clearance from floor to base of heater required; Limited 3 year warranty on parts and burners and 10 year warranty on any defects in the heat exchanger
$424.99
Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater, 80,000 BTU, Black
- Your purchase includes One Mr. Heater Big Maxx Natural Gas Heater with 2 angle brackets & Liquid Propane conversion kit | Thermostat, hose & regulator not included
- Heater dimensions – 29.33” L x 15.50” W x 26.37” H | Coverage area – 2000 Sq. Ft. | Performance – 80,000 BTU | Amps – 2.3 | Voltage – 120 V | Min 8 ft. clearance from floor to base of unit
- For use with natural gas | Category 1 vertical, category 3 horizontal venting
- Powered exhaust allows for vertical or horizontal venting | Spark ignition features self-diagnostic control module
- This heater offers the operating versatility and safety that you have come to expect from Mr. Heater | Limited 3 year warranty on parts and burners
$563.69
Mr. Heater MHVFBF30NGT 30,000 BTU Vent Free Blue Flame Natural Gas Heater - Wall Mount Space Heater For Cold Rooms, Sun-rooms, and more - White
- POWERFUL HEAT: This gas wall heater provides up to 30,000 BTUs with natural gas, turning cold rooms, additions, or other spaces into cozy retreats; perfect for areas up to 1,000 sq. ft. and effective at altitudes up to 4,500 feet
- PRECISE HEATER THERMOSTAT CONTROL: Equipped with a convenient thermostat for accurate temperature adjustment to ensure your space stays comfortable; includes a free battery to power the reliable electric ignition for hassle-free operation
- FUEL-EFFICIENT BLUE FLAME HEATER: Delivers efficient warmth with a blue flame burner, consuming just .030 MCF per hour; it ensures consistent convection heat, offering even and energy-efficient warmth while minimizing energy usage
- SAFE HEAT: This wall space heater is equipped with a low oxygen shut-off system (ODS-Oxygen Depletion Sensor) for reliable and secure operation wherever it’s used
- DUAL MOUNTING OPTIONS: This natural gas indoor heater features a modern look and its versatile design allows for permanent wall mounting with the included brackets and fasteners or secure floor placement with the included standing feet and hardware
$201.18
Mr. Heater F299741 30000 BTU Vent Free Blue Flame Natural Gas Heater for Indoor & Outdoor with ODS - Wall Mount Space Garage Heater - Black
- POWERFUL HEATER FOR LARGE SPACES: This gas wall heater provides up to 30,000 BTUs with a built-in fan creating comfort in your garage, patio, or other interior space; ideal for areas up to 1,000 sq ft and effective at altitudes up to 4,500 feet
- STYLISH VERSATILITY: Warm your space with this wall mounted space heater; the adaptable design allows for wall mounting or floor placement using the included feet; enjoy both efficient heat and a modern look that fits with any decor
- GARAGE HEATER WITH THERMOSTAT & BATTERY IGNITION: Our wall space heater features a convenient thermostat for precise temperature control and includes a battery to power the electric ignition
- ENERGY & FUEL-EFFICIENT BLUE FLAME HEATER: Delivers efficient warmth with a blue flame burner using just 0.020 MCF per hour, ensuring consistent convection heat, providing even warmth while minimizing energy use
- SAFE HEAT FOR ANY SPACE: Our gas garage heater provides safe operation with its low oxygen shut-off system (ODS); measuring 27.5 x 9.75 x 25.25 in & weighing 30.25 lbs, it's a versatile & reliable choice for efficient heating indoors or outdoors
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SALE
−$184.00
Modine HD45AS0111Natural Gas Hot Dawg Garage Heater 45,000 BTU with 80-Percent Efficiency Grey
- Quiet operation
- Certified for residential, commercial and industrial use
- Low profile design and neutral color
- Installs quickly and easily with field wiring connections and knockouts for quick access to gas and electricity
- Standard power exhaust simplifies side-wall or roof venting with small-diameter vent pipe
$915.00
Reznor 45,000 BTU Unit Natural Gas Heater Indoor Use Garage and Shop Heater | Quiet Forced Air, Ceiling Mount, Low Static Propeller Fan | UDXC-45
- Natural Gas Heaters: The Reznor UDXC series gas heaters for indoor use makes a great heating solution for many kinds of commercial, industrial, or residential spaces such as garages, workshops, warehouses, factories, and more.
- High Performance: The UDXC-45 is rated for 45,000 BTU with two heating output levels (low fire 26,145 BTU for milder cool days / high fire 37,350 BTU for the coldest times of the year) and achieves an 83% thermal efficiency rating.
- Gas Shop Heaters: The UDXC indoor gas heater comes with threaded-nut retainers at four suspension points for use as a ceiling mount hanging garage furnace or gas wall heater, depending on the bracket used. (Mounting sold separately.)
- Product Overview: Listing includes the Reznor gas unit heater only; compatible with category 1 double wall B-vent when venting vertically out of a roof, or category 3 single wall vent pipe when vented horizontally through a sidewall.
- Advanced Tech: This Reznor garage heater is built to last with a TCORE2 titanium-stabilized aluminized steel heat exchanger, patented single-burner combustion, integrated circuit board with display, built-in disconnect, and status-indicating LED.
$1,813.20
SALE
−$75.50
Mr. Heater F272200 MH25NG 25,000-BTU Natural-Gas Radiant Heater,Multi , Black
- 25,000-BTU natural-gas radiant workshop heater
- Heats up to 625 square feet
- Efficient radiant heat warms objects directly, not surrounding air
- Comes fully assembled; hooks up to existing natural-gas line; how-to video included
- Non-corrosive materials used throughout construction. 1-year limited warranty
$409.99
Reznor Model UDX-75 Unit Heater | Natural Gas 75,000 BTU | Heat Exchanger, Forced Air/Fan, Direct Spark Ignition, Low Noise | for Residential Garages, Workshops, and Warehouses
- Efficient Performance: Experience ultimate power of UDX-75. With a powerful 75,000 BTU capacity and exceptional 83% AFUE rating, this unit maximizes Annual Fuel Utilization Efficiency.
- Fast Heating: Its single-burner combustion system and TCORE2 titanium-stabilized aluminized steel heat exchanger work seamlessly together to deliver optimal results.
- User-Friendly Operation: The unit features user-friendly elements such as a status-indicating LED light and 7-segment display board for troubleshooting needs, providing a seamless experience for users.
- Warranty: A 9 Year Heat Exchanger, Burner, and Flue Collection Box Assembly; 4 Year All Electrical and Mechanical Components. For warranty validity, ensure installation compliance with local and state codes.
- More Information: Feel free to check out the Fourth Photo or the Product Description section for valuable details on this unit's specifications and features.
$1,389.93
Amazon Basics 46,000 BTU Outdoor Propane Patio Heater with Wheels, Commercial & Residential, Slate Gray, with Water Tank, 32.1 x 32.1 x 91.3 inches (LxWxH)
- SOOTHING WARMTH: Outdoor gas heater for cozy warmth when sitting outside; ideal for cafes, restaurants, and home patios
- EASY TO USE AND MOVE: One-touch ignition button for quick start ups; wheels for maneuvering into place
- POWERFUL HEAT: 46,000 BTUs for heating up to a 9 foot radius; adjustable temperature knob for controlling the output
- SAFETY FEATURES: Tilt safety auto-shut off valve; water box for weighing down the base and wheel kit; chain included to secure the tank
- DURABLE EXTERIOR & REQUIRES: Powder-coated finish in Slate Gray for lasting strength; 20 pound liquid propane gas tank to operate (not included)
$129.99
Reznor 150,000 BTU Commercial Natural Gas Garage Heater Ceiling Mount, Warehouse, and Gas Shop Heater Unit | Quiet Forced Air, Low Static Propeller Fan | UDXC-150
- Gas Shop Heaters: UDXC series Reznor garage heater gas units come natural gas fueled and make for a great heating solution for many kinds of commercial or industrial spaces such as garages, workshops, warehouses, factories, and more.
- High Performance: The UDXC-150 Reznor heater is rated for 150,000 BTU with two heating output levels (low fire 87,150 BTU for milder cool days / high fire 124,500 BTU for the coldest times of the year) and achieves an 83% thermal efficiency rating.
- Garage Heater Natural Gas Unit: The UDXC indoor gas heater comes with threaded-nut retainers at four suspension points for use as a ceiling mount hanging garage furnace or gas wall heater, depending on the bracket used. (Mounting sold separately.)
- Product Overview: Listing includes the Reznor gas unit heater only; compatible with category 1 double wall B-vent pipe when vented vertically out of a roof, or horizontally through a sidewall.
- Advanced Tech: This Reznor garage heater is built to last with a TCORE2 titanium-stabilized aluminized steel heat exchanger, patented single-burner combustion, integrated circuit board with display, built-in disconnect, and status-indicating LED.
$1,968.00
Last update on 2025-05-02 / Affiliate links / Images from Amazon Product Advertising API