The Big Maxx Heater does include a propane conversion kit.
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Mr. Heater Reconditioned Big Maxx Natural Gas Garage/Workshop Heater, 50,000 BTU, Model# MHU50NG-RECON

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- Easily heats a 2- to 3-car garage
- Low-profile design requires only 1in. clearance from ceiling
- Includes LP conversion kit for easy changeover
- Power exhaust allows for vertical or horizontal venting (kits sold separately)
- Designed for right or left side piping, electrical and flue connections by rotating 180°
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) Reconditioned Garage/workshop heater (1) LP conversion kit
Downloads
Features + Benefits

- Easily heats a 2- to 3-car garage
- Low-profile design requires only 1in. clearance from ceiling
- Includes LP conversion kit for easy changeover
- Power exhaust allows for vertical or horizontal venting (kits sold separately)
- Designed for right or left side piping, electrical and flue connections by rotating 180°
Key Specs
| Attribute | Specification |
|---|---|
item# | 110943 |
Brand | Mr. Heater |
Manufacturer's Warranty | 3 month limited warranty |
Ship Weight | 70.0 LB |
Heat Output | 50,000 Btu/hour |
Heat Type | Forced Air |
Heating Capability | 1,667 ft² |
Needs Direct Venting | Yes |
Blower Included | Yes |
Blower CFM | 550 cfm |
| Attribute | Specification |
|---|---|
Amps | 3 |
Thermostat Included | No |
Remote Included | No |
Phase | Single-phase |
Volts | 120 |
Oxygen Depletion Sensor | No |
Hardwired | Yes |
Product Weight | 70 lb |
Dimensions L x W x H (in.) | 29.33 x 15.15 x 26.37 in |
Reviews
Questions & Answers
Questions
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· 4 years ago
Does this unit come with lp conversion kit?
1 answer-
ProductExpert13· 4 years ago
Helpful?
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· 4 years ago
Will the heater heat garage 50ft/25ft good?
1 answer-
ProductExpert12· 4 years ago
This can heat up to 1,667 square feet.
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· 5 years ago
Is the 50000 BTU rating input BTUs or output BTUs?
1 answer-
ProductExpert6· 4 years ago
The BTU rating would be the output.
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· 5 years ago
Is there a warranty on this heater?
1 answer-
ProductExpert12· 5 years ago
This reconditioned Big Maxx heater has a 90 day warranty.
Helpful?
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· 5 years ago
Can I use this heater with 20lb propane tank. I only need it for occasional use.
1 answer-
ProductExpert11· 5 years ago
A 100 pound tank or larger is recommended. A smaller tank can be used as long as it is able to maintain a line pressure of 13” water column. A low pressure two stage regulator like item 25819 shown below is required.
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· 5 years ago
Can this unit operate with thermostat?
1 answer-
ProductExpert13· 5 years ago
This heater can operate on a thermostat. Please see item 173641 for that thermostat.
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· 5 years ago
Why must the bottom of the 50k btu heater be 8' above floor?
1 answer-
ProductExpert29· 5 years ago
This distance is required by the NFPA for safe performance and venting of combustion products.
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· 5 years ago
What would be the reconditioning process for this heater? Was it actually used before?
1 answer-
ProductExpert11· 5 years ago
Most reconditioned units have cosmetic damage that have been repaired with new replacement parts.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
3 month limited warranty
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Currently Viewing This Product
Item # 110943
Shipping: Sold Out
- $1970.99
Shipping:
Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- $1293.99
Shipping:
Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- $1716.99
Shipping:
Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
Specifications
50,000 Btu/hour
150,000 Btu/hour
40,000 Btu/hour
125,000 Btu/hour
Forced Air
Infrared
Infrared
Infrared
1,667 ft²
2,000 ft²
500 ft²
1,500 ft²
Yes
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Yes
Yes
Yes
Yes
550 cfm
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3
2
2
3
No
No
No
No
No
-
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-
Single-phase
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120
120
120
120
No
-
-
-
Yes
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70 lb
206.4000 lb
120.0000 lb
174.4000 lb
29.33 x 15.15 x 26.37 in
324.0 x 31.0 x 8.0 in
144.0 x 31.0 x 8.0 in
264.0 x 31.0 x 8.0 in






