---
product_id: 12954544
title: "Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black"
brand: "mr. heater"
price: "VT333263"
currency: VUV
in_stock: true
reviews_count: 13
category: "Mr. Heater"
url: https://www.desertcart.vu/products/12954544-mr-heater-f260550-big-maxx-mhu50ng-natural-gas-unit-heater
store_origin: VU
region: Vanuatu
---

# Heats up to 1,667 sq ft 50,000 BTU powerhouse Wi-Fi thermostat compatible Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black

**Brand:** mr. heater
**Price:** VT333263
**Availability:** ✅ In Stock

## Summary

> 🔥 Heat your hustle, not just your space!

## Quick Answers

- **What is this?** Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black by mr. heater
- **How much does it cost?** VT333263 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/12954544-mr-heater-f260550-big-maxx-mhu50ng-natural-gas-unit-heater)

## Best For

- mr. heater enthusiasts

## Why This Product

- Trusted mr. heater brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Reliable:** Backed by a 3-year parts warranty and 10-year heat exchanger guarantee.
- • **Expansive Coverage:** Effortlessly heats up to a 3-car garage (1,667 sq ft).
- • **Smart Thermostat Ready:** Seamlessly integrates with 24V or Wi-Fi thermostats for ultimate control.
- • **Powerful 50,000 BTU Output:** Rapidly transforms cold garages into cozy workspaces.
- • **Sleek Ceiling-Mount Design:** Saves floor space and installs easily with just 1-inch clearance.

## Overview

The Mr. Heater F260550 Big Maxx MHU50NG is a ceiling-mounted natural gas unit heater delivering 50,000 BTUs to warm up to 1,667 sq ft. Designed for garages, barns, and workshops, it features a high-velocity fan for efficient heat distribution, compatibility with modern Wi-Fi thermostats, and easy installation with minimal clearance. Durable spark ignition and self-diagnostic controls ensure safety and reliability, backed by extensive warranties.

## 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 50,000 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.

Review: Affordable and powerful. Exactly what I needed to keep working through the winter! - Hopefully this review is useful for other, it was hard to find real examples of use like this to get an idea of how well this unit will heat my space. I am heating a 21'x33' garage with an 11' ceiling. Walls are insulated at about an R15 but ceiling with unfinished attic above it is not insulated. Overhead garage door is insulated. Here's the data: Outside temp: 28F Garage Inside temp when heater was turned on: 40F 30 minutes after heater on inside temp: 53F 1 hour after heater on inside temp: 59F 2 hours after heater on inside temp: 65F The heater was able to get the temp inside the garage up to 70F after about 2.5 hours after not being used all day with an outside temp of 20F the other day as well and it keeps things very nice and comfortable. I cannot speak to reliability as I just purchased, but installation was easy (check Menards for their category 3 horizontal venting kit as it is half the price of the manufacturers kit), and the price was insanely good compared to all of the other options. I was quoted $3500 installed for other brand units from several different local HVAC companies and I was out the door installed (had a local company do part of the install) for around $900 total. I put the unit up and ran electrical but had the installer do the gas line and vent kit install. Since the unit was so inexpensive, I did add the 4 year desertcart protection plan. Hopefully it lasts a long time but if it doesn't, at least it will be easy and free to replace. All in all a good value and it gets the job done.
Review: All right, this is my yearly update for my Mr Heater. - Update April 19, 2026 Alright guys, forgot to update you all last fall. I got frustrated last fall when I hit the switch and got the clicking to fire up the gas and nothing.. Turns out there was a little piece of fuzz or spiderweb plugging up the vacuum line that that needs to be clear to engage the solenoid that opens the gas valve. Cleared out the fuzz from the line and BOOM, it fired right up. So mechanically it was fine, just a little cleaning required. Still love this heater, it’s April in upstate NY and it’s snowing..So had to fire it up to work on my lawn tractor (a different issue, always something required to keep life moving forwards) and it reminded me I hadn’t posted an update. I still highly recommend this heater.. Update Feb 9. 2024 Still going strong. Absolutely NO issues.. Update: October 17, 2023 I flipped the heater on today after leaving it off since sometime in April.. Its been in the low 50's so I just wanted to take the chill out of the garage and sort out my tools for a fall project. The unit fired right up, warmed up the garage, no issues, just did its job. This unit has been very reliable for me, and I continue to recommend this heater for a garage. ------------------------------------------- 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. If you can run some natural gas lines and stick a vent through the roof, you will love this heater. I stuck a cheap thermostat on it from one of the big box stores, a separate house switch on it to flip it off for the summer months. I have had NO problems with it. It runs for 6 months during the cold months, then I flip it off at the end of April, when October comes, I flip it back on and it fires right up. It doesn't make any vibrating noise like some have said, vents out the garage roof using the double wall vent duct with a hat to keep the snow out. I insulated my garage walls and ceiling with standard R19 from HD, and drywalled it as well. My garage is 24' x 24' x 10' with concrete floor. This unit heats it with no problem. I should have installed one years ago. Also, I did not use an isolation relay to isolate the unit that protects the house wiring from "a pulse" from the unit when the solenoid kicks on and I have experienced no issues with the unit interfering with the house electric. I have broadband internet, smart switches, smart lights, Alexa, etc.. and have experienced no issues. If you're like me, live in the north and have some DIY skills and are sitting on the fence, just pull the trigger and buy it. You'll get a whole new play area for the winter months. :-)

## Features

- Ceiling-mounted forced air unit heater turns garages, barns, and workshops into heated workspaces
- 50,000 BTUs heat up to 1,667 sq ft, or approximately a 3-car garage
- Compatible with standard 24-volt or new Wi-Fi enabled thermostats (sold separately)
- Color may vary between grey and tan
- Low profile design – minimum 10 ft. ceiling height and 8 ft. clearance required from the base of heater to floor
- High temperature safety shut-off switch and gas safety shut-off flame sensor

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LWW7V7K |
| Best Sellers Rank | #120,277 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #87 in Heaters & Heater Accessories |
| Brand | Mr. Heater |
| Brand Name | Mr. Heater |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 1,488 Reviews |
| Form Factor | Ceiling |
| Fuel Type | Natural Gas |
| Global Trade Identification Number | 00089301605503 |
| Heat Output | 50000 British Thermal Units |
| Heating Coverage | 1667 sq ft |
| Heating Element | Coil |
| Heating Method | Forced Air |
| Included Components | 2 angle brackets for ceiling mount, Heater, Manual, NG to LP conversion kit |
| Indoor Outdoor Usage | Indoor |
| Indoor/Outdoor Usage | Indoor |
| Item Dimensions D x W x H | 15"D x 29"W x 26"H |
| Item Type Name | unit heater |
| Item Weight | 59.5 Pounds |
| Manufacturer | Enerco Group Inc. |
| Max Temperature Setting | 120 Degrees Fahrenheit |
| Model Number | F260550 |
| Mounting Type | Ceiling Mount |
| Part Number | F260550 |
| Power Source | gas_powered |
| Recommended Uses For Product | Garage, Greenhouse |
| Room Type | Garage |
| Special Feature | Barn, Garage, Workshop |
| Special Features | Barn, Garage, Workshop |
| UPC | 089301605503 |
| Unit Count | 1.0 Count |
| Warranty Description | Other |

## Product Details

- **Brand:** Mr. Heater
- **Color:** Black
- **Form Factor:** Mat
- **Power Source:** gas_powered
- **Special Feature:** Barn, Garage, Workshop

## Images

![Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black - Image 1](https://m.media-amazon.com/images/I/71Gj+So7PCL.jpg)
![Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black - Image 2](https://m.media-amazon.com/images/I/61cmasehHKL.jpg)
![Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black - Image 3](https://m.media-amazon.com/images/I/81A8iQWtYdL.jpg)
![Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black - Image 4](https://m.media-amazon.com/images/I/719zJSW7HPL.jpg)
![Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black - Image 5](https://m.media-amazon.com/images/I/815d-XbeA8L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Affordable and powerful. Exactly what I needed to keep working through the winter!
*by P***L on December 3, 2024*

Hopefully this review is useful for other, it was hard to find real examples of use like this to get an idea of how well this unit will heat my space. I am heating a 21'x33' garage with an 11' ceiling. Walls are insulated at about an R15 but ceiling with unfinished attic above it is not insulated. Overhead garage door is insulated. Here's the data: Outside temp: 28F Garage Inside temp when heater was turned on: 40F 30 minutes after heater on inside temp: 53F 1 hour after heater on inside temp: 59F 2 hours after heater on inside temp: 65F The heater was able to get the temp inside the garage up to 70F after about 2.5 hours after not being used all day with an outside temp of 20F the other day as well and it keeps things very nice and comfortable. I cannot speak to reliability as I just purchased, but installation was easy (check Menards for their category 3 horizontal venting kit as it is half the price of the manufacturers kit), and the price was insanely good compared to all of the other options. I was quoted $3500 installed for other brand units from several different local HVAC companies and I was out the door installed (had a local company do part of the install) for around $900 total. I put the unit up and ran electrical but had the installer do the gas line and vent kit install. Since the unit was so inexpensive, I did add the 4 year Amazon protection plan. Hopefully it lasts a long time but if it doesn't, at least it will be easy and free to replace. All in all a good value and it gets the job done.

### ⭐⭐⭐⭐⭐ All right, this is my yearly update for my Mr Heater.
*by L***Y on January 2, 2023*

Update April 19, 2026 Alright guys, forgot to update you all last fall. I got frustrated last fall when I hit the switch and got the clicking to fire up the gas and nothing.. Turns out there was a little piece of fuzz or spiderweb plugging up the vacuum line that that needs to be clear to engage the solenoid that opens the gas valve. Cleared out the fuzz from the line and BOOM, it fired right up. So mechanically it was fine, just a little cleaning required. Still love this heater, it’s April in upstate NY and it’s snowing..So had to fire it up to work on my lawn tractor (a different issue, always something required to keep life moving forwards) and it reminded me I hadn’t posted an update. I still highly recommend this heater.. Update Feb 9. 2024 Still going strong. Absolutely NO issues.. Update: October 17, 2023 I flipped the heater on today after leaving it off since sometime in April.. Its been in the low 50's so I just wanted to take the chill out of the garage and sort out my tools for a fall project. The unit fired right up, warmed up the garage, no issues, just did its job. This unit has been very reliable for me, and I continue to recommend this heater for a garage. ------------------------------------------- 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. If you can run some natural gas lines and stick a vent through the roof, you will love this heater. I stuck a cheap thermostat on it from one of the big box stores, a separate house switch on it to flip it off for the summer months. I have had NO problems with it. It runs for 6 months during the cold months, then I flip it off at the end of April, when October comes, I flip it back on and it fires right up. It doesn't make any vibrating noise like some have said, vents out the garage roof using the double wall vent duct with a hat to keep the snow out. I insulated my garage walls and ceiling with standard R19 from HD, and drywalled it as well. My garage is 24' x 24' x 10' with concrete floor. This unit heats it with no problem. I should have installed one years ago. Also, I did not use an isolation relay to isolate the unit that protects the house wiring from "a pulse" from the unit when the solenoid kicks on and I have experienced no issues with the unit interfering with the house electric. I have broadband internet, smart switches, smart lights, Alexa, etc.. and have experienced no issues. If you're like me, live in the north and have some DIY skills and are sitting on the fence, just pull the trigger and buy it. You'll get a whole new play area for the winter months. :-)

### ⭐⭐⭐⭐⭐ !!!! REALLY GREAT HEATER !!!!
*by M***6 on January 20, 2020*

So worth the price, and very easy to install. Yeah the exhaust duct work costs almost as much as the unit itself. But We'll Worth It!!! Heats up the Garage almost instantly, my Garage is a 1 1/2 car garage. It's 12°outside currently in Buffalo NY. 01/20/2020. Turned the heater on and it was warm in 7 minutes, about 60°. The fan is quiet, don't listen to the other reviews. Not saying that their unit was loud but maybe they had something wrong with their fan?? My garage is a Gym and to work out in the winter it's great to have the Garage Heated. This unit goes ABOVE and BEYOND my EXPECTATIONS. Im VERY PLEASED with the performance, the ONLY advice i can give is that THE DIRECTIONS SAY TO pitch the duct work UP a quarter inch per foot. DO NOT pitch it UPWARD!! the CONDENSATION will run right into the heater. Their is a Fan their inside the unit that will get wet and ruined. I had to fix this because for 1 i could not find a 4" piece that's shown in the instructions that had that DRIP HOLE where you have to attach a drip hose to. I don't know why you would want a hose hanging down from your exhaust anyway with nowhere to drain it to... "PRO TIP" So angle the duct work downward and this way the sweat/ Condensation will run outside - out of the exhaust. If not you're going to have sweat and condensation running towards the heater ruining and rusting the inside of the heater. That's the only thing that I seen in the instructions that were horribly wrong. Everything else was a breeze. The gas line, the electrical, the thermostat simple work. I am installing a smart thermostat so I can control it from my phone, So when I wanna go out there and work out I will turn to thermos son 5 minutes before I go out their. Thank you, hope this review helps someone.

## Frequently Bought Together

- Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black
- Mr. Heater F210359 Thermostat for Heater,Tan,Small
- Mr. Heater F271239 One-Stop Universal Gas-Appliance Hook-Up Kit,Small

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-08*