Mr Heater Big Maxx To Buy - Reviews

By: Arslan Mazhar

The Mr. Heater big maxx is a strong and effective gas-fired garage heater made to deliver steady and dependable heat for sizable areas up to 1,000 square feet.  Design and Features: The Mr Heater big maxx boasts a low-profile steel structure with a streamlined and portable design. It includes a 4-inch horizontal vent kit that is simple to install outside and can also be changed to vent vertically. The heater has a thermostat that may be adjusted manually or remotely, as well as an automated electric ignition.

Heating Capabilities: The BTU (British thermal unit) outputs for the Mr Heater big maxx range from 50,000 to 125,000. It has an efficiency rating of up to 80% and generates heat using natural gas or propane. It can easily heat up sizable garages, workshops, and warehouses thanks to its heating capacity of up to 1,000 square feet. The heater generates a steady stream of heated air that is uniformly distributed by its fan system. Safety and Convenience: The Mr Heater big maxx is built with convenience features, such as a high-limit switch that turns the heater off immediately if it overheats.

In case the pilot light goes out, a thermoelectric safety valve on the heater shuts off the gas supply. The heater’s ignition technology is dependable and simple to use, and the fan system is also made to run silently. Installation: The Mr. Heater big maxx includes an easy-to-install 4-inch horizontal vent assembly. Also, the heater has a flexible mounting bracket that makes it simple to install and place the warmer where you want it. Nonetheless, it is advised, for safety, that a qualified professional install the heater.

Mr. heater big maxx, Natural gas unit F260550 bigmaxx heater

Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater

The Mr. Heater big maxx is a propane-powered garage heater that is extremely well-liked and is made to give effective and dependable heating for sizable regions up to 1,000 square feet. Below is a thorough description of this heater: Construction: The Mr. Heater big maxx is built with premium components to guarantee lifespan and durability. It has a powder-coated heavy-duty steel cabinet that resists corrosion and deterioration from weather and other influences. Heating Capacity: This modine unit heater has a maximum output of 50,000 BTUs, which is sufficient to heat a sizable garage or office space even in the coldest weather.

It has an effective fan that spreads heat uniformly across the room, making sure that every area is heated. Efficiency: With an efficiency rating of up to 80%, the Mr. Heater Large Maxx is created to be very efficient. As a result, it helps to cut fuel consumption and lower your heating expenses by converting a sizable amount of propane into useful heat. The modine unit heaters may be put on the wall or the ceiling using the accompanying mounting bracket thanks to its simple installation design. It has a slim design that occupies little room in your garage or office, and the venting mechanism can be set up to vent either horizontally or vertically.

The Mr Heater big maxx has a number of safety measures, including an automated shut-off system that will turn the heater off in the event of an issue or malfunction. Additionally, it has a high-limit switch that will turn the heater off if it becomes too hot as well as an integrated thermostat that lets you set and maintain the right temperature. Overall, Mr Heater big maxx is an excellent garage heater for anyone who wants to quickly and consistently heat a large space. It is a fantastic option for both homes and professionals due to its sturdy build, potent heating capability, and assortment of safety features.

Reviews & Purchasing Experiences

LifeTimeWorkOutGuy purchased this Mr. Heater big maxx and reviewed that “three years running still no issues” So I bought this heater in September of 2019 when I retired. I live in western NY where the winters are long, dark and cold. Since the wife doesn’t want to snowbird in the south, I figured I better heat the garage, so I had a place work on projects. Read more…

Mr. Heater big maxx MHU80NG, Thermostat for heater, Small Mr. Heater natural gas heater

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

The mr heater natural gas heater is a propane-powered garage heater that is extremely well-liked and is made to give effective and dependable heating for sizable regions up to 1,000 square feet. Below is a thorough description of this heater: Construction: The Mr. Heater big maxx is built with premium components to guarantee lifespan and durability. It has a powder-coated heavy-duty steel cabinet that resists corrosion and deterioration from weather and other influences. Large spaces up to 1,000 square feet can be reliably and effectively heated with the Big Maxx heater, a propane-powered garage heater. The Mr. Heater natural gas heater is described in full below:

Construction: The Big Maxx heater is made from premium components that guarantee lifetime and durability. It has a powder-coated heavy-duty steel cabinet that resists corrosion and deterioration from weather and other influences. Heating Capacity: This Mr. Heater big maxx has a maximum output of 80,000 BTUs, which is sufficient to heat a sizable garage or office space even in the coldest weather. It has an effective fan that spreads heat uniformly across the room, making sure that every area is heated. Efficiency: With an efficiency rating of up to 80%, the mr heater natural gas heater is made with great efficiency in mind. As a result, it helps to cut fuel consumption and lower your heating expenses by converting a sizable amount of propane into useful heat.

The heater may be put on the wall or the ceiling using the accompanying mounting bracket thanks to its simple installation design. It has a slim design that occupies little room in your garage or office, and the venting mechanism can be set up to vent either horizontally or vertically. A number of safety features, including an automated shut-off mechanism that will turn the heater off in the case of a problem or malfunction, are included with the Mr Heater natural gas heater. Additionally, it has a high-limit switch that will turn the heater off if it becomes too hot as well as an integrated thermostat that lets you set and maintain the right temperature.

Reviews & Purchasing Experiences

Greg Anshutz purchased this mr heater big maxx and reviewed that “Unit was damaged but works fine” The box was in great condition but once I removed the heater it looks like it was damaged at the factory. Read more…

Mr. Heater big maxx, 4 inch stainless steel horizontal vent kit, MHU80 unit heaters

Mr. Heater 4 inch Stainless Steel Horizontal Vent Kit for Big Maxx MHU50 and MHU80 Unit Heaters

A dependable and highly effective heating option for commercial and industrial applications is the Mr Heater big maxx. This heater is described in full below: Construction: High-quality components are used in the construction of the Mr Heater big maxx to ensure durability and lifespan. It has a powder-coated heavy-duty steel cabinet that resists corrosion and deterioration from weather and other influences. Heating Capacity: This heater can generate up to 250,000 BTUs of heat, which is sufficient to swiftly and efficiently warm up sizable commercial or industrial rooms. It has an effective fan that spreads heat uniformly across the room, making sure that every area is heated.

Efficiency: With an efficiency rating of up to 80%, the Mr Heater big maxx is made with excellent efficiency in mind. This indicates that it transforms a sizable portion of natural gas into usable heat, assisting in lowering energy consumption and helping you save money on heating expenses. The mr heater big maxx may be put on the wall or the ceiling using the accompanying mounting bracket thanks to its simple installation design. To meet a variety of installation needs, it offers a choice of venting options, including horizontal or vertical venting.

Safety Features: A number of safety measures, including an automated shut-off mechanism that will turn the heater off in the case of a problem or malfunction, are included with the Mr Heater big maxx. Additionally, it has a high-limit switch that will turn the heater off if it becomes too hot as well as an integrated thermostat that lets you set and maintain the right temperature. Overall, the Mr. Heater natural gas heater offers commercial and industrial applications a very effective and efficient heating solution. It is a great option for anyone who needs to swiftly and effectively heat a wide room due to its sturdy design, potent heating ability, and variety of safety features.

Reviews & Purchasing Experiences

Denise Johnson purchased this mr heater big maxx and reviewed that “Perfect” We bought this for my heater in my greenhouse, it was easy to install for my husband and his cousin. There is a lot of extra pieces we didn’t need but who knows where I’ll use those pieces.

Mr. heater big maxx, F260164 fuel conversion kit, Big maxx LP to NG, Tan

Mr. Heater F260164 Big Maxx Fuel Conversion Kit, LP to NG,Tan

Large spaces like warehouses, workshops, and garages are frequently heated by Mr Heater big maxx Unit Heaters. These heaters are described in detail below: Construction: To ensure durability and lifespan, mr heater big maxx unit heaters are built with high-quality components including heavy-duty steel. They are available in a range of shapes and sizes, including horizontal and vertical variants, to satisfy various installation needs and space constraints. From 25,000 to 400,000 BTUs, these heaters are able to produce a wide range of heating capacities. They can use this to heat everything from tiny workshops to enormous warehouses. They have a fan that circulates heat uniformly across the room, warming every nook and cranny.

Efficiency: mr heater big maxx unit heaters have an efficiency rating of up to 83% and are made to be very effective. This indicates that they effectively convert a large amount of fuel into usable heat, which helps to lower fuel consumption and lower your heating expenses. Installation: With the mounting bracket that is included, Mr Heater big maxx unit heaters may be mounted on the wall or the ceiling with ease. Moreover, they can be hung from the ceiling with chains or hangers. The venting system can be set up for either horizontal or vertical venting, and they have a low-profile design that takes up the least amount of room in your garage or workspace.

Mr heater big maxx unit heaters have a number of safety features, such as an automated shut-off mechanism that will turn the heater off in the event of an issue or failure. Additionally, they have a high-limit switch that will turn the heater off if it becomes too hot as well as an integrated thermostat that lets you set and maintain the right temperature.mr heater big maxx unit heaters are a generally effective and efficient way to heat vast areas. They are a great option for both professionals and homeowners due to its sturdy structure, potent heating capability, and assortment of safety features. A propane-powered garage heater called the Big Maxx is made to provide dependable and effective heating for big spaces.

Reviews & Purchasing Experiences

Rodney Hughes purchased this Mr Heater big maxx and reviewed that “Hard to find anywhere else.” If you have a ProCom heater and are looking for one of the unavailable LP conversion kits… this works great! I did have to re-tap the sleeve to accommodate the Big Maxx orifices… but that’s ok. Good fit for either ProCom or Big Maxx heaters. Just make sure you order the correct set for the fuel you are using.

Mr. Heater big maxx, F102848 4 inch vertical vent, Kit for big maxx

Mr. Heater F102848 4 Inch Vertical Vent Kit for Big Maxx MHU80LP and MHU80NG Unit Heaters,Gray

Mr. Heater big maxx is a popular residential and commercial garage heater that provides reliable, efficient heating for large spaces. It is designed to operate on natural gas or propane and is available in various sizes ranging from 50,000 BTU to 125,000 BTU. The Mr. Heater big maxx is built with durable materials and features a sealed combustion chamber that provides safe and reliable heating. It also has a quiet, low-profile design that is ideal for use in tight spaces such as garages, workshops, and warehouses. The Mr. Heater big maxx is easy to install and comes with a mounting bracket for wall or ceiling installation.

It has an electronic ignition system that ensures quick and reliable starting, while the built-in thermostat allows for easy temperature control. MHU80 and HSU80 type unit heaters from Mr. Heater big maxx designed exclusively for vertical installation. For your installation requirements, additional specific parts might be needed. Before installation, please confirm that all local and state regulations are followed. One 3″ to 4″ adaptor is included. (1) B-vent pipe, 4″ x 36″. 2 vent pipes measuring 4 by 24. (1) A 4″ 90-degree elbow, a wall fire stop, a flashing on the roof, a storm collar, and a vent cap. The Mr. heater big maxx also comes with a range of safety features, including a high-temperature limit switch and a pressure switch that shuts off the gas supply in case of any malfunctions.

The heater also has a venting system that removes any harmful gases outside the building, ensuring the safety of the occupants. One of the standout features of the Big Maxx is its efficiency. It has an AFUE rating of up to 80%, which means it can convert up to 80% of the fuel it consumes into heat. This makes it an excellent choice for those looking to save on energy costs. In conclusion, the Mr Heater big maxx is a reliable, efficient, and safe heating solution for large spaces. Its easy installation, user-friendly controls, and durability make it a popular choice for both residential and commercial applications.

Reviews & Purchasing Experiences

Amazon Customer purchased this Mr. Heater big maxx and reviewed that “Best value kitavailable if you’re mounting through the roof” I could find no other kit that was this reasonable. I needed another steel elbow so I had to pick that up at the store but other than that it worked good. purchased this Mr. Heater big maxx and reviewed that Best value kitavailable if you’re mounting through the roof I could find no other kit that was this reasonable.  Read more…

Frequently Asked Questions (FAQs)

This heater can run on a gas grill propane tank. Make sure the propane conversation kit has been installed and then you’ll need to use a grill hose that has the regulator on it. Then you’ll have to change the fitting after the regulator.

Mine did the same thing after not even 2 years. I always had to pull the hose off the switch then stick a paper clip through the orifice. Then I realized the opening was getting clogged. Since it has the blower motor for exhaust I adjusted my pipe to angle down ever so slightly instead of up and it’s worked fine ever.

No thermostat. But, you don’t need to deal with finicky milivolt thermo’s .. this unit uses 24vac supplied by the heater to use with your supplied thermostat.

We just had our heater installed in our 12 x 20 garage and the ceiling height is probably 7 ft. We have it set at 55. I am sure this would more than heat your area. My installer told me that I could of used a smaller unit. Hope this helps you. We love ours.

It requires a double wall “ b-vent “ flue system . The bvent has a single wall connector piece to start the flue off at the unit itself.

Somewhere it was said to be “self-venting,” but in the manual it says: “Unit heaters must be vented in compliance with all local codes or requirements of the local utility, the current standards of the (American) National Fuel Gas Code, ANSI Z223.1

Hello, thank you for having taken the time to contact us 🙂
To answer your question, this stainless steel horizontal vent kit allows Category 3 Unit/Utility heaters to comply to both the Canadian Standard (S636) and the US Standard (UL1738). It meets all of the latest 2012 building heating codes for using category III.

You can get more pipe if needed and be sure you get the proper connection to the heater! It will have three holes to screw it onto the heater vent then rubberized connections the rest of the way
I have a spare after my battle with the Mr Heater.

It actually terminates in a T that is uncapped at both ends. You can see it in the picture on the upper left side. Mine is oriented with the openings up & down (do not remember if orienting side to side was an option) . Have never had any issues with it.

YOU HAVE TO MAKE SURE THE ORFICES OR THE RIGHT SIZE I COULD SEND YOU A PICTURE OF THESE TO COMPARE . THEY ARE WAY TO BIG FOR WHAT I NEEDED. DIDN”T TRY IT IN MY OUTSIDE GRILL. . SORRY HOPE T HIS HELPS. I NEEDED ONE A 1/4 OF THIS SIZE.SO I WAS LED WRONG AND SENDING IT BACK I HOPE. 

We value you reaching out this conversion kit will only work with Mr. Heater Big Maxx units.
Thanks.

Thank you for the inquiry.
Yes that conversion kit to propane will work leaving you with two extra orifices.
By Amazon Customer on November 7, 2020

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