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Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater,Black, 80,000 BTU

4.5 4.5 out of 5 stars 660 ratings

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Heater

Purchase options and add-ons

Brand Mr. Heater
Special Feature High temperature safety shut-off
Color Black
Product Dimensions 22"D x 30"W x 27"H
Mounting Type Ceiling Mount
Power Source
Gas Powered
Heating Method
Forced Air
Item Weight
88 Pounds
Heat Output
80000 British Thermal Units

About this item

  • 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

Customer ratings by feature

Tech Support
4.5 4.5
Easy to install
4.2 4.2
Noise level
4.1 4.1
Value for money
4.0 4.0

Frequently bought together

$608.49
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$18.15
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$23.57
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This Item
Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater,Black, 80,000 BTU
Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater,Black, 80,000 BTU
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Details
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Price-38% $608.49
List:$985.58
$649.99-46% $178.60
List:$329.99
-15% $364.60
Typical:$429.00
$219.99$596.63
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it Mar 29 - Apr 2
Customer Ratings
Easy to install
4.2
4.1
4.3
4.1
Value for money
4.0
4.3
4.2
Comfort
3.6
4.4
4.2
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Michaelsons
power source
Gas Powered
Gas Powered
Corded Electric
propane
Corded Electric
Corded Electric, Gas Powered
heating method
Forced Air
Convection
Convection
Forced Air
Forced Air
Forced Air
heating coverage
2,667 sq ft
170 square feet
1250 sq ft
1250 sq. ft.
700 square feet
heat output
80000 btus
80000 btus
20000 btus
50000 btus
25600 btus
50000 btus
weight
88 pounds
17 pounds
63 pounds
23.6 pounds
63 pounds

From the manufacturer

Unit Heater, mr heater, garage heater, ceiling heater, barn heater, heat your garage
Unit Heater, big maxx, unit and garage heater, 50000 BTU, 80000 BTU, 125000 BTU

Unit Heater, adjustable direction, air louvers, ceiling mounted

Unit Heater, wifi compatible, digital thermostat, smart heater

Unit Heater, high powered fan

Unit Heater, vertical venting, horizontal venting

Air louvers with 3 locking positions

Easy outside access to thermostat and A/C terminals

High powered fan

Powered exhaust allows for vertical or horizontal venting

Unit Heater, high efficiency heater, natural gas compatible, propane heater, ceiling mount
Unit Heater Unit Heater Unit Heater
Learn More Learn More Learn More
Customer Reviews
4.5 out of 5 stars
1,334
4.5 out of 5 stars
660
4.3 out of 5 stars
114
BTU 50,000 80,000 125,000
Heats up to 1,667 sq. ft. 2,667 sq. ft. 4,167 sq. ft.
Fuel type Set for NG - Includes LP conversion kit Set for NG - Includes LP conversion kit Set for NG - Includes LP conversion kit
Includes brackets
WIFI/Digital thermostat compatible

Product guides and documents

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF ]

Feedback

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Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater,Black, 80,000 BTU


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Product Description

If you are looking to turn your garage or barn into a work space you can use all year-round, you will have to find a safe quiet and reliable heat source. This 80,000 BTU Natural Gas Unit heater is the way to go. It uses a built-in electric high velocity fan to pull cool air into the rear of the heater, across a heat exchanger, then forcing warm air into the surrounding areas. These heaters only require 115v AC power and can be vented vertically or horizontally - please check local codes and restrictions. With a mounting clearance of only 1 inch, the supplied brackets, external access to power, and thermostat connections - installation is a cinch. With the Durable Spark ignition and robust factory standard self diagnostic control module, we can offer a 3 year factory warranty on all parts and burners and a 10 year warranty on any defects in the heat exchanger. This heater offers the operating versatility and safety that you have come to expect from Mr. Heater.

Customer reviews

4.5 out of 5 stars
4.5 out of 5
660 global ratings

Customers say

Customers like the performance, heat, and ease of installation of the space heater. For example, they mention it works well, heats up good, and does a great job of maintaining the temperature. That said, some complain about the quality and noise.

AI-generated from the text of customer reviews

57 customers mention45 positive12 negative

Customers like the performance of the space heater. For example, they say it works well, is easy to install and operate, and the fans work well. Some say the thermostat went out in about a week. However, most are pleased with its performance and value. The heater works great for garages and hunting shacks, and is quiet. Some mention it's efficient and can be used to heat up large spaces.

"...I am very pleased with it's performance and value, you will be too...." Read more

"First, The heater is installed and running great...." Read more

"...The unit is fairly quite and works well. Installed in a 2400 sqft insulated shop and can easily maintain 60F." Read more

"...It has been very efficient...." Read more

55 customers mention46 positive9 negative

Customers like the heat produced by the space heater. For example, they say it's easy to install, heats up good, and does a great job of maintaining the temperature. They also mention that it takes up less space and makes more heat quicker. Overall, customers are satisfied with the performance of this furnace.

"...refill at current prices this beast is both economic and simply keeps me toasty and in my shop a hell of a lot. I’m a happy chappy!" Read more

"Great furnace" Read more

"Great heater, great value. Put it to use in my three car detached garage. The garage is fully insulated and thus the heater warms it easily...." Read more

"...Our shop is insulated and this heater does a great job of maintaining the temperature even in cold Ohio winters. A+A+" Read more

34 customers mention28 positive6 negative

Customers find the installation process of the space heater to be easy. They mention that it comes with straightforward instructions and parts. Some say that the thermostat hook up is easy.

"...Instructions easy to follow for an experienced Do It Yourself. I am very pleased with it's performance and value, you will be too...." Read more

"...The installation was painless and easy and I converted the unit to Propane from the original Natural gas...." Read more

"I had this heater installed in less then a day, very easy to install, the venting and thermostat and other hardware you have to buy separate is..." Read more

"...Seems sturdy and well made. Manual is sufficient. So why only 3 stars? The exhaust temperature is much higher than the others I've had...." Read more

34 customers mention31 positive3 negative

Customers appreciate the value of the space heater. They say it's a good product for the price, easy to install, and heats up well. Some customers also mention that it'll cost less to replace than repair.

"...Around $300 a tank refill at current prices this beast is both economic and simply keeps me toasty and in my shop a hell of a lot. I’m a happy chappy!" Read more

"Great heater, great value. Put it to use in my three car detached garage. The garage is fully insulated and thus the heater warms it easily...." Read more

"...I am however beyond happy with it. It is a great product and is built like a tank. ( Which is a good thing... read the last part of my review.)..." Read more

"...review, but i'm keeping in mind the cost of the unit which is a really good value...." Read more

21 customers mention14 positive7 negative

Customers are mixed about the quality of the space heater. Some mention it's very good quality, well constructed, and reliable, while others say that they are disappointed in the quality control and service to resolve the problem. They also mention that the box was not made properly for the transport of the product and that it was bad out of the box.

"...surprised when the heater arrived and I saw the quality of the overall construction. I was afraid with a cheap price I would receive a cheap heater...." Read more

"...It was just cheaply built or assembled. You get what you pay for." Read more

"...The box was in great condition but once I removed the heater it looks like it was damaged at the factory...." Read more

"...The unit is fairly quite and works well. Installed in a 2400 sqft insulated shop and can easily maintain 60F." Read more

17 customers mention7 positive10 negative

Customers are mixed about the noise of the space heater. Some mention that it seems pretty quiet and kicks out the heat, while others say that it creates an unbelievable amount of vibration and noise. Some customers also mention that the fan is out of balance, and the motors squeak and squelch.

"...The unit was fitted initially and vibrated horribly due to a bent fan blade damaged in transit...." Read more

"...This one is quiet, for this type but like all they are a little noisy. Seems sturdy and well made. Manual is sufficient. So why only 3 stars?..." Read more

"...when I went to use it though my second season I noticed it was making a strange sound so I had opened the service book that came with it and learned..." Read more

"...Seems pretty quiet and kicks out the heat. So far, so good!" Read more

14 customers mention0 positive14 negative

Customers are dissatisfied with the damage of the space heater. They mention that the packaging is insufficient, the heater was bent and dented, and the front left edge was smashed. The blower fan is bent and vibrates badly. The box was split open and there were no instructions.

"...The unit was fitted initially and vibrated horribly due to a bent fan blade damaged in transit...." Read more

"...The heater was damaged a bit, cosmetic mostly...." Read more

"...The front left edge was smashed in about an inch which pushed the whole side panel to the rear bending the screws and rear flange...." Read more

"...have been a little more robust as the box was damaged, and the heater had a few dents here and there. Otherwise well worth the investment." Read more

Good heater for money
4 Stars
Good heater for money
Pretty simple to install and setup. Puts out decent amount of heat. Just installed so haven't really got use it much
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