Best High Altitude Propane Heater in 2025
Updated on July 2025
#1
Recommended
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- Provides a constant supply of hot water on demand, eliminating waiting times for multiple showers.
- Features 60,000 BTU output and an oxygen-free copper heat exchanger, designed for high-altitude use and energy efficiency.
- Microcomputer control panel allows easy temperature adjustments from 95 to 123°F, with error codes for troubleshooting.
- Compact design facilitates installation in confined spaces, with a door size of 15" x 15" and an opening size of 13" x 13".
- Certified for safety with features like a forced exhaust fan, stable combustion, freeze protection, and automatic gas shut-off.
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- Provides a constant supply of hot water on demand, eliminating waiting times for multiple showers.
- Features 60,000 BTU output and an oxygen-free copper heat exchanger, designed for high-altitude use and energy efficiency.
- Microcomputer control panel allows easy temperature adjustments from 95 to 123°F, with error codes for troubleshooting.
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#2
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- Upgraded multi-function remote control displays gas usage, voltage, GPM, activation of the anti-freeze device, and supports high altitudes up to 9,800ft.
- Compatible with RV water heaters requiring a 12.8 x 12.8" opening, easily replaces Suburban & Atwood models (6/10/12 gal). Appropriate door kit sold separately in various sizes.
- Deep fire row design enhances heating efficiency, providing up to 3.9 GPM of hot water with a power output of 65,000 BTU for continuous availability when gas and water supply is sufficient.
- Temperature control ranges from 95°F to 124°F, utilizing staged combustion technology to regulate flame levels during summer and conserve propane.
- Built-in pressure relief valve simplifies installation, eliminating the need for separate purchase; includes a 6.6-foot intelligent remote controller.
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- Upgraded multi-function remote control displays gas usage, voltage, GPM, activation of the anti-freeze device, and supports high altitudes up to 9,800ft.
- Compatible with RV water heaters requiring a 12.8 x 12.8" opening, easily replaces Suburban & Atwood models (6/10/12 gal). Appropriate door kit sold separately in various sizes.
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#3
15% Off
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- Liquid propane compatible, fuel conversion not allowed
- Blue Flame Technology effectively warms the air via convection, similar to central heating
- Adjustable heat output ranging from 16,000 to 20,000 BTUs per hour, suitable for spaces up to 700 square feet
- Thermostat control knob ensures automatic maintenance of desired temperature
- Operates without electricity, providing dependable backup heating during emergencies
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- Liquid propane compatible, fuel conversion not allowed
- Blue Flame Technology effectively warms the air via convection, similar to central heating
- Adjustable heat output ranging from 16,000 to 20,000 BTUs per hour, suitable for spaces up to 700 square feet
- Thermostat control knob ensures automatic maintenance of desired temperature
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#4
10% Off
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- High heating power of 65,000 BTU provides an endless supply of hot water for multiple uses, including showers and dishwashing.
- Compatible with various RVs, featuring a compact opening size of 12.7" x 12.7" and an optional fitting door kit for easy replacement.
- Operates effectively at high altitudes above 9,800 ft, utilizing staged combustion technology to maintain consistent water temperatures in low-oxygen conditions.
- Includes built-in safety measures such as a forced exhaust fan, pressure relief valve, automatic gas shut-off, and anti-freeze device to prevent freezing.
- CSA-certified with a 2-year service warranty and access to 24/7 professional technical support for installation and troubleshooting assistance.
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- High heating power of 65,000 BTU provides an endless supply of hot water for multiple uses, including showers and dishwashing.
- Compatible with various RVs, featuring a compact opening size of 12.7" x 12.7" and an optional fitting door kit for easy replacement.
- Operates effectively at high altitudes above 9,800 ft, utilizing staged combustion technology to maintain consistent water temperatures in low-oxygen conditions.
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#5
29% Off
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- 65,000 BTU heating provides a continuous flow of hot water at 2.64GPM, allowing for simultaneous use in RV bathrooms and kitchens.
- Smart freeze protection system activates below 43℉ to prevent damage to the copper water tank during winter.
- Meets CSA/NSF safety standards, featuring a corrosion-resistant door and a built-in pressure relief valve for durability.
- 1.5ft remote control enables temperature adjustments between 95-124℉ for precise shower settings.
- Compatible with Suburban SW4/SW6, Atwood 6-gallon, and Fogatti/Furrion tankless models for easy upgrades.
- Functions effectively at altitudes up to 9,800 feet and withstands winds up to 9 on the Beaufort scale with an adjustable burner system.
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- 65,000 BTU heating provides a continuous flow of hot water at 2.64GPM, allowing for simultaneous use in RV bathrooms and kitchens.
- Smart freeze protection system activates below 43℉ to prevent damage to the copper water tank during winter.
- Meets CSA/NSF safety standards, featuring a corrosion-resistant door and a built-in pressure relief valve for durability.
- 1.5ft remote control enables temperature adjustments between 95-124℉ for precise shower settings.
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#6
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- Dual water outlets for both internal and external use, making it convenient to rinse off or bathe pets outside.
- Instant heating capability with propane, providing hot water on demand without the wait typical of storage heaters.
- Safety features include a 40-minute auto shut-off timer and flame control technology to prevent overheating, ensuring secure operation.
- Designed to function at high altitudes, operating reliably up to 9,800 feet with technology that adjusts flames for optimal performance.
- Comes complete with all necessary components including water heater, door, shower head, pressure relief valve, and wall-mounted controller.
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- Dual water outlets for both internal and external use, making it convenient to rinse off or bathe pets outside.
- Instant heating capability with propane, providing hot water on demand without the wait typical of storage heaters.
- Safety features include a 40-minute auto shut-off timer and flame control technology to prevent overheating, ensuring secure operation.
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#7
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- High altitude mode enables smooth operation at elevations up to 9,800 feet, utilizing staged combustion technology to regulate water temperature and conserve propane.
- Compatible with a variety of RV water heaters, including Suburban and Atwood's 6-gallon tanks, as well as Girard and Furrion tankless systems, with a replacement opening of 13 x 13 inches.
- Generates a maximum of 2.9 GPM with 55,000 BTU power, providing over 40 minutes of continuous hot water compared to traditional tank heaters.
- Tankless design eliminates wait time for hot water, allowing for simultaneous use without interruption during showers, powered by propane.
- Includes built-in pressure relief valve and a 15 x 15 inches door; features an intelligent remote controller for ease of use.
- CSA certified with multiple safety features, including a forced exhaust fan, automatic gas shut-off, and anti-freeze protection.
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- High altitude mode enables smooth operation at elevations up to 9,800 feet, utilizing staged combustion technology to regulate water temperature and conserve propane.
- Compatible with a variety of RV water heaters, including Suburban and Atwood's 6-gallon tanks, as well as Girard and Furrion tankless systems, with a replacement opening of 13 x 13 inches.
- Generates a maximum of 2.9 GPM with 55,000 BTU power, providing over 40 minutes of continuous hot water compared to traditional tank heaters.
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#8
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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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#9
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- ETL Certified for safety and performance in the US and Canada, with a certification control number for verification.
- Comprehensive safety features including flameout protection, dry-burning protection, and over-temperature protection.
- Equipped with a digital constant temperature system and advanced gas control technology for reliable performance.
- Delivers a powerful heating capacity of 60,000 BTU/h, with a maximum water heating capability of 3.9 GPM.
- Compact dimensions requiring a cut-out size of 13" x 13" for easy installation.
- Package includes necessary components for setup, including a wired controller and instruction manual.
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- ETL Certified for safety and performance in the US and Canada, with a certification control number for verification.
- Comprehensive safety features including flameout protection, dry-burning protection, and over-temperature protection.
- Equipped with a digital constant temperature system and advanced gas control technology for reliable performance.
- Delivers a powerful heating capacity of 60,000 BTU/h, with a maximum water heating capability of 3.9 GPM.
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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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