Search  for anything...
Mr. Heater

Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater & F210359 Thermostat for Heater,Tan,Small

    • Based on 645 reviews
Condition: New
Checking for product changes
$624.53 Why this price?

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives within 30 days
Order within 19 hours and 16 minutes
Available payment plans shown during checkout

Style: Heater + Thermostat,S


Features

  • Product 1: Your purchase includes One Mr. Heater Big Maxx Natural Gas Heater with 2 angle brackets & Liquid Propane conversion kit | Thermostat, hose & regulator not included
  • Product 1: 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
  • Product 1: For use with natural gas | Category 1 vertical, category 3 horizontal venting
  • Product 1: Powered exhaust allows for vertical or horizontal venting | Spark ignition features self-diagnostic control module
  • Product 2: Compatible with Big Maxx MHU 45/75/50/80 Natural Gas/Propane Heater
  • Product 2: Compatible with MH 25/40 High Intensity Radiant Garage Natural Gas/Propane Heater
  • Product 2: No External Power Needed
  • Product 2: Simple 2-wire System

Description

Mr. Heater F260560 Big Maxx MHU80NG Natural Gas Unit Heater 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. Mr. Heater F210359 Thermostat for Heater,Tan,Small An Incredibly Durable Thermostat for Low Voltage and Millivolt Heaters.

Brand: Mr. Heater


Special Feature: Noiseless


Color: Brown


Mounting Type: Floor Mount


Heating Coverage: 2000 square feet


Brand: Mr. Heater


Special Feature: Noiseless


Color: Brown


Mounting Type: Floor Mount


Heating Coverage: 2000 square feet


Burner type: Radiant


Heat Output: 80000 British Thermal Units


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Keep in mind the cost to install - but still great value!
Style: Heater
This is great value for money. Service was next to none. Keep in mind you will need to pay for a vent whether it is horizontal or vertical. Allow $300 approx for this. You may also need professionally installation as this unit requires connection to a propane tank (recommend at least 120 gal) and a regulator cost. With tank lease, regulator, 2 men to install, gas line, proper gas fittings all up $950. So the whole investment approx $2k. You could save by having the unit fitted in place with help, but you best be sure of the codes ie distance from walls, roof, floor etc etc because if this baby ignites your garage and burns to the ground and it wasn’t fitted to code and proves it was the cause - then - need I say more. The unit was fitted initially and vibrated horribly due to a bent fan blade damaged in transit. Picked up the phone and the supplier had a replacement sent in 3 days. Unfortunately, they sent the wrong one. However, 2 days later via FedEx the right one was sent. Fitted and works like a new one should. Some say it’s noisy but I can’t say it is. I can say it belts out some heat and so far economically. I will up date this when I’ve been through a cold season. Dec 2022 Update: fitted a nest thermostat and have this running at 56F whilst outside sun 30’s. I use around a gallon a day so out of a 120 gallon tank this thing keeps my shop cost for around 2-3 months. 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! ... show more
Reviewed in the United States on May 5, 2022 by John Marshall
    • Work great
Style: Heater
Great furnace
Reviewed in the United States on September 20, 2023 by Amazon Customer
    • Very Good Heater, Happy to have it Installed.
Style: Heater
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. Some complained it was loud/noisy, I did not find that to be true. Instructions easy to follow for an experienced Do It Yourself. I am very pleased with it's performance and value, you will be too. I needed a propane conversion kit, it was not in the box, I think it fell out perhaps because the box showed up pretty beat up. The heater was damaged a bit, cosmetic mostly. But I did call help desk at Mr. Heater and they were very helpful and sent a propane conversion kit within the week. Got it installed without a problem. Would have given 5 stars if the packaging had been better. Mr heater could design better packaging. Hope they do. You won't be disappointed. ... show more
Reviewed in the United States on March 22, 2022 by Nancy Finnerty
    • Good heater
Style: Heater
UPS driver rolled it right out of the truck. Packaged very well. No damage. 👍
Reviewed in the United States on January 6, 2024 by Charlie B.
    • Great Value And Well Constructed
Style: Heater
I bought this heater mostly because Northern Tool had them on sale at a great price with free shipping. So yeah, I'm cheap. I like a bargain. I was pleasantly 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. 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.) The installation was painless and easy and I converted the unit to Propane from the original Natural gas. The propane kit was easy to install with clear and concise instructions on how to do the conversion. This heater is heating a 24 X 36 shop with R-13 insulation and twelve foot ceiling height. So far it has not shown itself to be a gas hog like others have described it. It has been down to ten degrees at night and the heater maintained the forty degree setting with ease and not much fuel use. The only issue I had was with the shipper and not the product or with Northern Tool. I hate pointing fingers but the shipper had beat my heater up to the point where it looked like it had been delivered by airplane and dropped from about a thousand feet! It is a good thing the heater is constructed as well as it is because otherwise it would have been useless! It is a real testimony of how well the unit is constructed because I was able to make repairs and straighten all of the damage. Then after a close inspection of the vital components we fired it up. So far I highly recommend this product and the Mr. Heater brand. ... show more
Reviewed in the United States on November 18, 2019 by SL
    • Good product
Style: Heater
Product works well, we have it in a 40x60 uninsulated shop. Between a wood stove & this heater it is bearable during the cold days in there now.
Reviewed in the United States on April 1, 2023 by DeAnna Fitz
    • Read the instructions it tells you step by step on how to install it, very easy to read.
Style: Heater
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 pretty pricey, I’m not upset about it I’m just wanting to let others know that buying this heater be ready to put more money into it, the most expensive is the venting part because you have to get double sided vent for it which is pretty pricey. Instead of going out of the roof or the side of the house (which is most recommended) I just tide it into the water heater which saved me a ton of money. Just wanted to update my review, after 2 winters running this heater I have had no issues, 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 how to do the regular maintenance cleaning etc, once I cleaned the unit the noise went away, I have read all the other reviews and I’m not sure why everyone else is having issues. For me I would recommend this heater I have finally also gotten the chance to insulate my shop doors which has helped so much now I will turn the thermostat to 70 degrees and it’ll the heater will run for maybe 30 min and shit off for probably almost 5 hours if not longer, again this is just my experience with this unit I am very pleased. ... show more
Reviewed in the United States on April 3, 2020 by Travis Edwards

Can't find a product?

Find it on Amazon first, then paste the link below.