Best Garage Heater Propane Indoor in 2025
Updated on July 2025
#1
Recommended
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- Includes Mr. Heater Big Maxx Natural Gas Heater, 2 angle brackets, and Liquid Propane conversion kit (thermostat, hose, and regulator not included)
- Dimensions: 29.33” L x 15.50” W x 26.37” H; Coverage: 2000 sq. ft.; Performance: 80,000 BTU; Requires 2.3 Amps and 120 V; Minimum 8 ft. clearance needed
- Compatible with natural gas and designed for category 1 vertical and category 3 horizontal venting
- Features powered exhaust for versatile venting options and spark ignition with self-diagnostic control module
- Reliable operation with safety features; limited 3-year warranty on parts and burners
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- Includes Mr. Heater Big Maxx Natural Gas Heater, 2 angle brackets, and Liquid Propane conversion kit (thermostat, hose, and regulator not included)
- Dimensions: 29.33” L x 15.50” W x 26.37” H; Coverage: 2000 sq. ft.; Performance: 80,000 BTU; Requires 2.3 Amps and 120 V; Minimum 8 ft. clearance needed
- Compatible with natural gas and designed for category 1 vertical and category 3 horizontal venting
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#2
Value for Money
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- Provides 50,000 BTU per hour, suitable for spaces up to 1250 sq. ft.
- Equipped with a powered exhaust for flexible venting options, either vertically or horizontally.
- Includes convenient outside access to thermostat, A/C terminals, and gas connections.
- Conversion kit for Natural Gas to Liquid Propane and 2 angle brackets for ceiling mounting are included.
- Requires a minimum clearance of 8 ft from floor to heater base; limited warranty covers parts and burners for 3 years, and heat exchanger defects for 10 years.
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- Provides 50,000 BTU per hour, suitable for spaces up to 1250 sq. ft.
- Equipped with a powered exhaust for flexible venting options, either vertically or horizontally.
- Includes convenient outside access to thermostat, A/C terminals, and gas connections.
- Conversion kit for Natural Gas to Liquid Propane and 2 angle brackets for ceiling mounting are included.
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#3
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- Liquid propane ready, fuel conversion not allowed
- Infrared technology radiates heat to warm objects directly
- Variable heat output from 6,000 to 30,000 BTUs per hour, covering up to 1,000 sq. ft.
- Customizable heat settings with a knob for precise control
- No electricity required for reliable backup heating
- Includes a 1-year warranty
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- Liquid propane ready, fuel conversion not allowed
- Infrared technology radiates heat to warm objects directly
- Variable heat output from 6,000 to 30,000 BTUs per hour, covering up to 1,000 sq. ft.
- Customizable heat settings with a knob for precise control
- No electricity required for reliable backup heating
- Includes a 1-year warranty
#4
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- Produces up to 20,000 BTUs, heating spaces up to 700 sq. ft., suitable for elevations up to 4,500 ft.
- Includes a thermostat for precise temperature control and features battery-powered electronic ignition for easy startups.
- Equipped with an automatic oxygen shut-off system for safe operation.
- Utilizes convection heating, warming air and distributing heat throughout the room efficiently.
- Can be mounted on a wall or used free-standing, with legs and mounting hardware provided for flexible installation.
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- Produces up to 20,000 BTUs, heating spaces up to 700 sq. ft., suitable for elevations up to 4,500 ft.
- Includes a thermostat for precise temperature control and features battery-powered electronic ignition for easy startups.
- Equipped with an automatic oxygen shut-off system for safe operation.
- Utilizes convection heating, warming air and distributing heat throughout the room efficiently.
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#5
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- QBT Technology reduces noise by 50% compared to standard propane heaters
- Delivers 60,000 BTU for efficient heating
- Adjustable output between 30,000 and 60,000 BTU, with up to 14 hours of operation on a 20 lb tank at low setting
- Capable of heating spaces up to 1,500 sq. ft.
- Features continuous ignition for reliable operation
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- QBT Technology reduces noise by 50% compared to standard propane heaters
- Delivers 60,000 BTU for efficient heating
- Adjustable output between 30,000 and 60,000 BTU, with up to 14 hours of operation on a 20 lb tank at low setting
- Capable of heating spaces up to 1,500 sq. ft.
- Features continuous ignition for reliable operation
#6
38% Off
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- Suitable for indoor and outdoor use with IP55 rating, ideal for homes, patios, garages, and restaurants.
- Delivers clean, instant, and odorless infrared heat with three power settings: 900W, 1200W, and 1500W.
- Easy to use with a standard 120V plug and remote control functionality.
- Includes brackets for wall and ceiling mounting.
- High reflectivity aluminum reflector enhances heating efficiency, designed for optimal performance with a carbon lamp.
- Constructed from durable, weather-resistant aluminum.
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- Suitable for indoor and outdoor use with IP55 rating, ideal for homes, patios, garages, and restaurants.
- Delivers clean, instant, and odorless infrared heat with three power settings: 900W, 1200W, and 1500W.
- Easy to use with a standard 120V plug and remote control functionality.
- Includes brackets for wall and ceiling mounting.
- High reflectivity aluminum reflector enhances heating efficiency, designed for optimal performance with a carbon lamp.
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#7
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- Provides up to 30,000 BTUs using natural gas, suitable for spaces up to 1,000 sq. ft. and effective at altitudes up to 4,500 feet.
- Includes a built-in thermostat for precise temperature control and comes with a battery for easy electric ignition.
- Features a blue flame burner for efficient heating, consuming .030 MCF per hour and ensuring even warmth.
- Equipped with an oxygen depletion sensor for safety, ensuring secure operation.
- Offers dual mounting options: can be wall-mounted with included brackets or placed securely on the floor.
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- Provides up to 30,000 BTUs using natural gas, suitable for spaces up to 1,000 sq. ft. and effective at altitudes up to 4,500 feet.
- Includes a built-in thermostat for precise temperature control and comes with a battery for easy electric ignition.
- Features a blue flame burner for efficient heating, consuming .030 MCF per hour and ensuring even warmth.
- Equipped with an oxygen depletion sensor for safety, ensuring secure operation.
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#8
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- Heats up to 1,000 sq. ft. with 30,000 BTUs, suitable for elevations up to 4,500 ft.
- Includes thermostat for temperature regulation and battery-powered ignition for easy start-up.
- Equipped with low oxygen shut-off system for safety, CSA certified for reliable operation.
- Utilizes blue flame technology for efficient convection heating, consuming 1.389 lbs of fuel per hour.
- Versatile installation options with included legs and mounting hardware for wall or free-standing setup.
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- Heats up to 1,000 sq. ft. with 30,000 BTUs, suitable for elevations up to 4,500 ft.
- Includes thermostat for temperature regulation and battery-powered ignition for easy start-up.
- Equipped with low oxygen shut-off system for safety, CSA certified for reliable operation.
- Utilizes blue flame technology for efficient convection heating, consuming 1.389 lbs of fuel per hour.
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#9
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- Radiant heater with an output range of 4,000 to 18,000 BTU, suitable for spaces up to 450 square feet.
- Heater may shut off at altitudes above 7,000 feet; maximum operation time is 220 hours.
- Features auto shut-off for safety if tipped over, if the pilot light extinguishes, or if low oxygen levels are detected.
- Adjustable heat settings with low, medium, and high; requires a separate propane tank.
- Using unauthorized accessories or attachments may lead to serious injury and void the warranty.
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- Radiant heater with an output range of 4,000 to 18,000 BTU, suitable for spaces up to 450 square feet.
- Heater may shut off at altitudes above 7,000 feet; maximum operation time is 220 hours.
- Features auto shut-off for safety if tipped over, if the pilot light extinguishes, or if low oxygen levels are detected.
- Adjustable heat settings with low, medium, and high; requires a separate propane tank.
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#10
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- Delivers 30,000 BTUs of infrared heat, effectively warming spaces up to 1,000 sq. ft.
- Utilizes multiple burner tiles for even radiant heat distribution, ideal for cold rooms and sunrooms.
- Consumes only 1.389 lbs of propane per hour, offering up to 14.39 hours of heating at maximum output with a minimum 20 lb LP cylinder.
- Equipped with a low-oxygen shut-off system for safety, immediately stopping gas flow when oxygen levels drop.
- Features a built-in thermostat for easy temperature control and a battery-powered ignition for quick startup.
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- Delivers 30,000 BTUs of infrared heat, effectively warming spaces up to 1,000 sq. ft.
- Utilizes multiple burner tiles for even radiant heat distribution, ideal for cold rooms and sunrooms.
- Consumes only 1.389 lbs of propane per hour, offering up to 14.39 hours of heating at maximum output with a minimum 20 lb LP cylinder.
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