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Best Buy customers often prefer the following products when searching for btu heaters.

Space heaters use electricity to heat air, which then gets transferred to the room. They're very efficient and they don't use any chemicals or other additives to help them work. Browse the top-ranked list of btu heaters below along with associated reviews and opinions.

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  1. GE - 450 Sq. Ft. 10300 BTU Smart Portable Air Conditioner and 10300 BTU Heater - White - Front_Zoom

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 10,000 BTU class (10300 BTU DOE) smart portable air conditioner cools and heats medium rooms up to 450 square feet. Energy efficient cooling with 3 cooling, 3 heating, 3 fan speeds provide flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 10,000 BTU class (10300 BTU DOE) smart portable air conditioner cools and heats medium rooms up to 450 square feet. Energy efficient cooling with 3 cooling, 3 heating, 3 fan speeds provide flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  2. AuxAC - 350 Sq. Ft Portable Air Conditioner and 7,600 BTU Heater - White - Front_Zoom
    Top comment

    "Only cool 1 room. Cool like a 5000 btu not an 18000 btu. Not worth the money."

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    Product Description

    This portable air conditioner gives you the choice of what room to cool and when to cool it. This 13,000 BTU (8,000 BTU DOE) air conditioner is a great solution for reducing your central AC use by cooling the room you use the most. Perfect for smaller rooms, such as a home office or bedroom up to 350 sq.ft. and has a built-in dehumidifier that removes up to 2.83 pints of moisture per hour. With built-in 7,600 BTU heating capabilities, this unit can be used all year round. The AC models include caster wheels for easy movement and complete window venting kits for quick setup. Designed to cool your home and save you money on energy, this air conditioner is the perfect fit for any home.
    See all Portable Air Conditioners
    Top comment

    "Only cool 1 room. Cool like a 5000 btu not an 18000 btu. Not worth the money."

    See all customer reviews

    Product Description

    This portable air conditioner gives you the choice of what room to cool and when to cool it. This 13,000 BTU (8,000 BTU DOE) air conditioner is a great solution for reducing your central AC use by cooling the room you use the most. Perfect for smaller rooms, such as a home office or bedroom up to 350 sq.ft. and has a built-in dehumidifier that removes up to 2.83 pints of moisture per hour. With built-in 7,600 BTU heating capabilities, this unit can be used all year round. The AC models include caster wheels for easy movement and complete window venting kits for quick setup. Designed to cool your home and save you money on energy, this air conditioner is the perfect fit for any home.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  3. GE - 550 Sq. Ft. 12200 BTU Smart Window Air Conditioner and 10800 BTU Heater - White - Front_Zoom

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU smart window air conditioner cools and heats medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling, 3 heating, and 3 fan speeds provides year-round optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and slide-out chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU smart window air conditioner cools and heats medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling, 3 heating, and 3 fan speeds provides year-round optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and slide-out chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  4. Heat Storm - Infrared Heater and Tripod combo - SILVER - Front_Zoom
    Top comment

    "Outdoor heater...Heater...Nice heater. Keeps me warm in the garage during the winter time."

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    Product Description

    The Tradesman 1500 Outdoor Infrared Quartz heater is a 1500-Watt heater that provides gentle warmth for areas where floor space is at a premium and with the flexibility to install it on the included Tripod, wall or the ceiling. The Tradesman 1500 provides radiant heat energy, which instantly warms people and solid objects within the beam of heat. It is ideal for patios, balconies, workshop, garage, etc. It produces an output of 1500-Watt (5200 BTU) and is cULus electrically certified. Requiring no gas or other flammable fuels, the carbon fiber heating element heats very efficiently. Its features include 1500-Watt of gentle, radiant heat, an anodized extruded aluminum alloy frame, an aluminum reflector that evenly concentrates heat outward, a mounting bracket that tilts 30 forwards and backward to angle unit as needed and a 6 ft. power cord. Uses a standard 120-Volt wall outlet. It is protected against rain and dust (IP35 certified).
    See all Space Heaters
    Top comment

    "Outdoor heater...Heater...Nice heater. Keeps me warm in the garage during the winter time."

    See all customer reviews

    Product Description

    The Tradesman 1500 Outdoor Infrared Quartz heater is a 1500-Watt heater that provides gentle warmth for areas where floor space is at a premium and with the flexibility to install it on the included Tripod, wall or the ceiling. The Tradesman 1500 provides radiant heat energy, which instantly warms people and solid objects within the beam of heat. It is ideal for patios, balconies, workshop, garage, etc. It produces an output of 1500-Watt (5200 BTU) and is cULus electrically certified. Requiring no gas or other flammable fuels, the carbon fiber heating element heats very efficiently. Its features include 1500-Watt of gentle, radiant heat, an anodized extruded aluminum alloy frame, an aluminum reflector that evenly concentrates heat outward, a mounting bracket that tilts 30 forwards and backward to angle unit as needed and a 6 ft. power cord. Uses a standard 120-Volt wall outlet. It is protected against rain and dust (IP35 certified).
    See all Space Heaters
    See all Space Heaters
  5. LG - 440 Sq. Ft. Through-the-Wall Air Conditioner and 440 Sq. Ft. Heater - White - Front_Zoom
    Top comment

    "AC/Heater...It does work, but does not cool the space as well or as quickly as I would like. We tried the heater and it seems to run ok, but due to the fact that it's still summer and hot out, we did not leave it on too long."

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    Product Description

    Control your environment with this 10,000 BTU LG air conditioner. Its 230V motor provides two cooling speeds along with supplemental heating, and its four-way air deflection system covers areas of up to 440 sq. ft. This through-the-wall LG air conditioner has a 24-hour timer that lets you preset operating hours.
    See all In-Wall Air Conditioners
    Top comment

    "AC/Heater...It does work, but does not cool the space as well or as quickly as I would like. We tried the heater and it seems to run ok, but due to the fact that it's still summer and hot out, we did not leave it on too long."

    See all customer reviews

    Product Description

    Control your environment with this 10,000 BTU LG air conditioner. Its 230V motor provides two cooling speeds along with supplemental heating, and its four-way air deflection system covers areas of up to 440 sq. ft. This through-the-wall LG air conditioner has a 24-hour timer that lets you preset operating hours.
    See all In-Wall Air Conditioners
    See all In-Wall Air Conditioners
  6. LG - 1420 Sq. Ft. Window Air Conditioner and 1420 Sq. Ft. Heater - White - Front_Zoom
    Top comment

    "This was bought as a replacement but not because the one we had had stopped working but because we just needed another with more BTU. Our old time home needs more insulation and the 12,000BTU AC/Heat just wasn’t cutting it for this Louisiana heat this year so I went up to a 23,500BTU AC/Heat (same exact name brand unit just more BTU and square footage coverage) I’m now able to cook in my kitchen... that’s how much of a difference this AC purchase has made in my life. ...The 24K BTU WINDOW AC"

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    Product Description

    Keep comfortable year-round with this 23,000 BTU LG window air conditioner and heater. Adjustable temperature settings and a programmable timer ensure optimal heating or cooling throughout the day, and the four-way direction vents let you aim the air where you want it. This LG window air conditioner and heater comes with a remote control for convenient across-room operation.
    See all Window Air Conditioners
    Top comment

    "This was bought as a replacement but not because the one we had had stopped working but because we just needed another with more BTU. Our old time home needs more insulation and the 12,000BTU AC/Heat just wasn’t cutting it for this Louisiana heat this year so I went up to a 23,500BTU AC/Heat (same exact name brand unit just more BTU and square footage coverage) I’m now able to cook in my kitchen... that’s how much of a difference this AC purchase has made in my life. ...The 24K BTU WINDOW AC"

    See all customer reviews

    Product Description

    Keep comfortable year-round with this 23,000 BTU LG window air conditioner and heater. Adjustable temperature settings and a programmable timer ensure optimal heating or cooling throughout the day, and the four-way direction vents let you aim the air where you want it. This LG window air conditioner and heater comes with a remote control for convenient across-room operation.
    See all Window Air Conditioners
    See all Window Air Conditioners
  7. Fire Sense - Patio Heater - Hammered Platinum - Front_Zoom
    Top comment

    "Amazing patio heater. Works great....we bought two firesense heaters and it was more than enough to heat 6 of us sitting in a circle format. ...Fire Sense 46000-BTU Antique Bronze Aluminum Floorstanding Liquid Propane Patio Heater...The setup was easy to install and all hardware including screws and tool were well packaged. I am yet to run the heater; still need to attach the LP tank. Adding a propane fuel level gauged and I am all set!"

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    Product Description

    Enjoy your outdoor living space longer with this Fire Sense patio heater. The 46,000 BTUs of heat output keeps your space warm, while the tip-over protection system prevents damage to the unit. A piezo ignition system starts the fire easily, and a wide base with wheels ensures increased stability and easy mobility. This Fire Sense patio heater has a powder-coated finish for durability.
    See all Propane Patio Heaters
    Top comment

    "Amazing patio heater. Works great....we bought two firesense heaters and it was more than enough to heat 6 of us sitting in a circle format. ...Fire Sense 46000-BTU Antique Bronze Aluminum Floorstanding Liquid Propane Patio Heater...The setup was easy to install and all hardware including screws and tool were well packaged. I am yet to run the heater; still need to attach the LP tank. Adding a propane fuel level gauged and I am all set!"

    See all customer reviews

    Product Description

    Enjoy your outdoor living space longer with this Fire Sense patio heater. The 46,000 BTUs of heat output keeps your space warm, while the tip-over protection system prevents damage to the unit. A piezo ignition system starts the fire easily, and a wide base with wheels ensures increased stability and easy mobility. This Fire Sense patio heater has a powder-coated finish for durability.
    See all Propane Patio Heaters
    See all Propane Patio Heaters
  8. Heat Storm - 1500 Watt Electric Infrared Heater - Black - Front_Zoom

    Product Description

    The Tradesman 1500 Outdoor Infrared Quartz heater is a 1500-Watt heater that provides gentle warmth for areas where floor space is at a premium and with the flexibility to install it on the included wall/ceiling mount. The Tradesman 1500 provides radiant heat energy, which instantly warms people and solid objects within the beam of heat. It is ideal for patios, balconies, workshop, garage, etc. It produces an output of 1500-Watt (5200 BTU) and is callus electrically certified.
    See all Electric Patio Heaters

    Product Description

    The Tradesman 1500 Outdoor Infrared Quartz heater is a 1500-Watt heater that provides gentle warmth for areas where floor space is at a premium and with the flexibility to install it on the included wall/ceiling mount. The Tradesman 1500 provides radiant heat energy, which instantly warms people and solid objects within the beam of heat. It is ideal for patios, balconies, workshop, garage, etc. It produces an output of 1500-Watt (5200 BTU) and is callus electrically certified.
    See all Electric Patio Heaters
    See all Electric Patio Heaters
  9. Bromic Heating - Outdoor Heater - Tungsten Portable - LPG - 38,500 BTU - Black - Front_Zoom
    Top comment

    "Awsome heater very good investing i going buy more...Bromic heater...Produces good heat coverage. Had an issue with heater and bromic shipped new one out."

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    Product Description

    Up to 3 times more efficient than traditional Mushroom heaters, the Bromic Tungsten Portable Gas patio heater has got you covered! With its award-winning, matte black finish, it’s a piece of modern art and a high-performance radiant heater in one, creating comfortable warm environments in areas of up to 215 square feet. This highly-efficient patio heater easily overcomes winds of up to 8mph and wastes little to no energy thanks to its use of directional heat, making sure the heat ends up exactly where it’s needed.
    See all Propane Patio Heaters
    Top comment

    "Awsome heater very good investing i going buy more...Bromic heater...Produces good heat coverage. Had an issue with heater and bromic shipped new one out."

    See all customer reviews

    Product Description

    Up to 3 times more efficient than traditional Mushroom heaters, the Bromic Tungsten Portable Gas patio heater has got you covered! With its award-winning, matte black finish, it’s a piece of modern art and a high-performance radiant heater in one, creating comfortable warm environments in areas of up to 215 square feet. This highly-efficient patio heater easily overcomes winds of up to 8mph and wastes little to no energy thanks to its use of directional heat, making sure the heat ends up exactly where it’s needed.
    See all Propane Patio Heaters
    See all Propane Patio Heaters
  10. Heat Storm - Infrared Heater and Roll Cage combo - SILVER - Front_Zoom

    Product Description

    The Tradesman 1500 Outdoor Infrared Quartz heater is a 1500-Watt ceiling/wall mounted heater that provides gentle warmth for areas where floor space is at a premium and with the flexibility to install it on a wall or the ceiling. The Tradesman 1500 provides radiant heat energy, which instantly warms people and solid objects within the beam of heat. It is ideal for patios, balconies, workshop, garage, etc. It produces an output of 1500-Watt (5200 BTU) and is cULus electrically certified. Requiring no gas or other flammable fuels, the carbon fiber heating element heats very efficiently. Its features include 1500-Watt of gentle, radiant heat, an anodized extruded aluminum alloy frame, an aluminum reflector that evenly concentrates heat outward, a mounting bracket that tilts 30° forwards and backward to angle unit as needed and a 6 ft. power cord. Uses a standard 120-Volt wall outlet. It is protected against rain and dust (IP35 certified).
    See all Space Heaters

    Product Description

    The Tradesman 1500 Outdoor Infrared Quartz heater is a 1500-Watt ceiling/wall mounted heater that provides gentle warmth for areas where floor space is at a premium and with the flexibility to install it on a wall or the ceiling. The Tradesman 1500 provides radiant heat energy, which instantly warms people and solid objects within the beam of heat. It is ideal for patios, balconies, workshop, garage, etc. It produces an output of 1500-Watt (5200 BTU) and is cULus electrically certified. Requiring no gas or other flammable fuels, the carbon fiber heating element heats very efficiently. Its features include 1500-Watt of gentle, radiant heat, an anodized extruded aluminum alloy frame, an aluminum reflector that evenly concentrates heat outward, a mounting bracket that tilts 30° forwards and backward to angle unit as needed and a 6 ft. power cord. Uses a standard 120-Volt wall outlet. It is protected against rain and dust (IP35 certified).
    See all Space Heaters
    See all Space Heaters
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