Best Mr Heater Radiant Garage Heater in 2025
Updated on May 2025
#1
Recommended
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- Infrared heating system that is both efficient and cost-effective.
- Designed for buildings with ceiling heights ranging from 12 to 15 feet.
- Clearance requirements: 36" above, 30" on sides and back, and 68" below.
- Capable of heating an area up to 1000 square feet.
- Operates without electricity; maintenance-free with no moving components.
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- Infrared heating system that is both efficient and cost-effective.
- Designed for buildings with ceiling heights ranging from 12 to 15 feet.
- Clearance requirements: 36" above, 30" on sides and back, and 68" below.
- Capable of heating an area up to 1000 square feet.
- Operates without electricity; maintenance-free with no moving components.
#2
Value for Money
11% Off
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- 70,000 BTUs radiant heat technology efficiently warms up to 1,750 square feet
- Quiet Burner Technology offers powerful forced air convection while minimizing noise
- User-friendly on-board thermostat with LED readout allows for precise temperature control
- Compatible with multiple fuel options including kerosene, diesel, and fuel oil, ensuring safe operation with low odor
- Built-in fuel level gauge and easily accessible external filter for simple maintenance
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- 70,000 BTUs radiant heat technology efficiently warms up to 1,750 square feet
- Quiet Burner Technology offers powerful forced air convection while minimizing noise
- User-friendly on-board thermostat with LED readout allows for precise temperature control
- Compatible with multiple fuel options including kerosene, diesel, and fuel oil, ensuring safe operation with low odor
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#3
19% Off
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- Minimal odor during operation
- Quiet performance
- Effective radiant heat distribution
- Covers an area of up to 3125 square feet
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- Minimal odor during operation
- Quiet performance
- Effective radiant heat distribution
- Covers an area of up to 3125 square feet
#4
16% Off
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- 25,000 BTU natural gas radiant heater ideal for workshops
- Covers a heating area of up to 625 square feet
- Delivers efficient radiant heat by warming objects directly
- Ready to use with easy connection to existing natural gas line; includes instructional video
- Constructed with non-corrosive materials and backed by a 1-year limited warranty
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- 25,000 BTU natural gas radiant heater ideal for workshops
- Covers a heating area of up to 625 square feet
- Delivers efficient radiant heat by warming objects directly
- Ready to use with easy connection to existing natural gas line; includes instructional video
- Constructed with non-corrosive materials and backed by a 1-year limited warranty
#5
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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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#6
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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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#7
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- Portable propane radiant heater with 35,000 BTU output
- Heats areas up to 875 square feet, suitable for workshops and construction sites
- Radiant heating technology warms objects directly instead of the air
- Uses a 20-pound propane cylinder (not included); includes hose and regulator
- Dimensions: 12 x 10 x 34 inches; backed by a 1-year limited warranty
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- Portable propane radiant heater with 35,000 BTU output
- Heats areas up to 875 square feet, suitable for workshops and construction sites
- Radiant heating technology warms objects directly instead of the air
- Uses a 20-pound propane cylinder (not included); includes hose and regulator
- Dimensions: 12 x 10 x 34 inches; backed by a 1-year limited warranty
#8
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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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#9
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- Delivers 18,000 BTU output for efficient heating in areas up to 700 sq. ft.
- Uses multiple burner tiles for radiant heat, effective for supplemental warmth in various spaces.
- Consumes 0.926 lbs of fuel per hour, allowing up to 21.59 hours of operation with a standard 20 lb LP cylinder.
- Equipped with a low-oxygen shut-off system for safety, ensuring reliable operation in low-oxygen environments.
- Features a built-in thermostat for easy temperature control and battery-powered ignition for quick startup.
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- Delivers 18,000 BTU output for efficient heating in areas up to 700 sq. ft.
- Uses multiple burner tiles for radiant heat, effective for supplemental warmth in various spaces.
- Consumes 0.926 lbs of fuel per hour, allowing up to 21.59 hours of operation with a standard 20 lb LP cylinder.
- Equipped with a low-oxygen shut-off system for safety, ensuring reliable operation in low-oxygen environments.
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#10
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- 20,000 BTU heater for spaces up to 500 square feet
- Radiant heat burner capable of heating areas up to 700 square feet
- Equipped with an automatic low oxygen shut-off system (ODS), CSA certified
- May experience shutdowns at altitudes over 4,500 feet due to pilot/ODS safety mechanisms
- Includes thermostat, legs, and wall mounting hardware for installation
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- 20,000 BTU heater for spaces up to 500 square feet
- Radiant heat burner capable of heating areas up to 700 square feet
- Equipped with an automatic low oxygen shut-off system (ODS), CSA certified
- May experience shutdowns at altitudes over 4,500 feet due to pilot/ODS safety mechanisms
- Includes thermostat, legs, and wall mounting hardware for installation
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