Mr. Heater 18000 BTU Radiant Propane Cabinet Outdoor Space Heater
Mr. Heater 18000 BTU Radiant Propane Cabinet Outdoor Space Heater
Hero image 0 of Mr. Heater 18000 BTU Radiant Propane Cabinet Outdoor Space Heater, 0 of 11
Mr. Heater

Mr. Heater 18000 BTU Radiant Propane Cabinet Outdoor Space Heater

Key item features

  • Manufacturer warranty: 90-day warranty
  • Adjustable heat settings with 6,000 BTU, 12,000 BTU, or 18,000 BTU per hour options
  • For use with propane gas, this heater features a tip over switch and safety shut off
  • Heats up to 450 square feet of outdoor or patio space to keep the chill away
  • Heavy duty lockable casters make this heater easy to roll around
  • Runs up to 72 hours when hooked up to a 20 pound propane tank mounted inside the cabinet
  • Comes with regulator and hose for easy hook up
  • Quiet and odorless, the heater uses clean burning operation
  • Constructed with durable 0.08 mm steel
  • No electricity or power cords require
  • Features auto low oxygen shut off (ODS)
  • Do not use in occupied dwellings or structures
  • Specifications:
  • Heating Product Type: Space heater
  • Heating technology type: Radiant
  • Fuel type: Propane
  • Recommended location: Outdoors
  • Remote: No
  • Dimensions (L x W): 23 x 16.5 inches
  • Weight: 23 pounds
Current price is $128.00
Price when purchased online
  • Free shipping
  • Free 30-day returns
Walmart Protection Plan by Allstate

(Only one option can be selected at a time)

How do you want your item?

Try 30 days for just $1! Choose a plan at checkout.
How do you want your item?
Ships to
Arrives by Tomorrow
.
Order within 10 hr 26 min
Sold and shipped by Walmart.com
Free 30-day returns
This item is gift eligible

More seller options (5)

Starting from $128.00
walmart plus

Try 30 days of Walmart+ for just $1!

T&C apply.

About this item

Product details

Specifications

Warranty

Warnings

Refine your search

Customer ratings & reviews

4.5 out of 5 stars
stars639 ratings328 reviews
How item rating is calculated
  1. 5 stars79% (505)
  2. 4 stars9% (56)
  3. 3 stars2% (13)
  4. 2 stars2% (12)
  5. 1 star8% (53)

Reviews summary

Pros

  • : Offers good value for the cost.
  • : Setup is straightforward with provided screws and instructions.
  • : Provides sufficient heat in a typical residential garage.
  • : Simple operation with minimal setup required.
  • : Keeps homes warm during cold months.

Neutral

  • : Can hold 20-pound tanks, but may be unstable when empty.
Generated by AI

Customer photos

  • +6 images
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 328 reviews

Feb 19, 2026
Walmart customer
Item details
Size: Regular
5 out of 5 stars review

Verified Purchase

Good looking,heating of single rooms in the cold.

This unit is as good looking as the first one, yet more fuel efficient. Like the Big Buddy and first cabinet unit no off putting smells, just clean heat. Great for getting bathroom warm for shower, keeping pipes from freezing in kitchen, supplement for bedroom when wood stove doesn't get stoked in the night. When not in use it is good to store in box to keep clean and bug free. I am a fan of the Buddy heaters.

Helpful?5DR2MQAW2ZXV21714347
Jan 12, 2026
Connie
Top Reviewer
Item details
Size: Regular
5 out of 5 stars review

Verified Purchase

Powerful Heat, Easy Setup, Well Worth the Price

I'm very happy with this heater. It was very easy to set up, and the delivery was quick, which was a nice bonus. Once turned on, it heats up the area extremely fast and throws out a lot of heat, making it perfect for outdoor spaces when temperatures drop. The radiant heat is strong and effective, and it does a great job warming up the surrounding area in no time. The heater offers three heat settings, allowing you to adjust the output depending on your needs. The ignition switch is very easy to use—it may take a couple of tries at first, but it fires up reliably. Although it's not recommended for indoor use, I do occasionally use it indoors to take the chill off, and I've had no issues. I also use a carbon monoxide detector, just in case. The heater includes several built-in safety features, such as accidental tip-over shutoff and an ODS (oxygen depletion sensor), which will automatically turn the unit off if oxygen levels become too low. Another big plus is that it requires no electricity, is whisper quiet, and provides clean, odor-free heat. The build quality feels solid and durable, making it well worth the price, and it feels like a heater that will last a long time. With its strong performance, multiple safety features, and ease of use, I would highly recommend this heater to anyone looking for reliable, powerful warmth.

Helpful?5DR2MQAW2ZXV21714347
Jan 20, 2026
Chuck
Top Reviewer
Item details
Size: Regular
5 out of 5 stars review

Verified Purchase

I have all electric heat in my home, so I purchased the Mr. Heater 18000 BTU Radiant Propane Cabinet Outdoor Space Heater for back up if the power goes out and to use when the temperature is below 20 degrees. It's really a nice heater it has a place in the back to sit a 20-pound tank It easy to light and use and I only use the low sitting, and it keep my home warm and a tank of gas lasted about 2 to 3 days for me, and it was price reasonable and it was shipped in a timely manner so if you need a good back up heater this is a good heater but remember it is rated as a outdoor heater so use gas line tape when hooking the tank up and check with soapy water for bubbles and keep it sitting by a window or outside door where cold air come in

Helpful?5DR2MQAW2ZXV21714347