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Mr. Heater

Mr. Heater Big Buddy 4,000-18,000 BTU 3 Setting Portable LP Gas Heater Unit

4.5 stars out of 926 reviews
(4.5)|
926 ratings
Mr. Heater Big Buddy 4,000-18,000 BTU 3 Setting Portable LP Gas Heater UnitMr Heater Big Buddy 4 000 18 000 BTU 3 Setting Portable LP Gas Heater Unit
Pack Size:Single-Out of stock

Key item features

  • Versatile Heating: Emits 4,000, 9,000, or 18,000 BTU/hr radiant heat with three temperature settings: low, medium, and high.
  • Indoor/Outdoor Use: Designed and approved for both indoor and outdoor environments, heating up to approximately 400 square feet.
  • Safety Features: Equipped with an emergency low oxygen safety system, thermal shut-down system, and accidental tip-over switch.
  • Long Runtime: Runs 10.8 hours on low, 4.8 hours on medium, and 2.4 hours on high settings.
  • Easy Setup: Features swivel regulators for easy installation of propane and directly connects to two 1 lb disposable propane cylinders or a 20 lb cylinder with optional hose and filter.
  • Enhanced Circulation: Built-in fan improves heat circulation for better warmth distribution.
  • Clean and Safe: Constructed with self-extinguishing materials, clean burning, and odor-free; CSA Certified.
  • Wide Application: Suitable for recreational or professional use, not for sale in California or Massachusetts.
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Current price is $144.00
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Customer ratings & reviews

4.5 out of 5 stars
stars926 ratings399 reviews
How item rating is calculated
  1. 5 stars79% (733)
  2. 4 stars9% (87)
  3. 3 stars2% (22)
  4. 2 stars2% (20)
  5. 1 star7% (64)

Reviews summary

Pros

  • : Suitable for outdoor activities like camping, fishing, and hunting.
  • : Simple to operate and set up with minimal effort.
  • : Effective for warming up small to medium-sized spaces.
  • : Made to last for years with this type of build.
  • : Offers lower price compared to others.

Neutral

  • : Can be efficient, but also consumes fuel quickly.
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Showing 1-3 of 399 reviews

Oct 17, 2024
Walmart customer
Top Reviewer
5 out of 5 stars review

Verified Purchase

Great all round heater

Indoor / outdoor backup house heater if electric goes out this bad boy can safely put out some heat 3 setting 4,000, 9,000, 18,000 BTU turn it up high to get it warm then turn it down to conserve fuel easily goes camping or fishing cozy tent heater.

Helpful?4EPR4ONETL6419398780
reply from Mr. Heater Product Expert

Thank you for your review and feedback. We appreciate your business!

Feb 5, 2026
Roy
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Perfect backup heat source.

works great, got this as a backup in case of power outage. It took a little bit to get the air bled out, but once I got it done, it fired right up. The built in fan works, but really doesn't move much air, although some air movement is better than none.

Helpful?4EPR4ONETL6419398780
Feb 4, 2026
DONNA
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Big Buddy

I Love this Heater ,This is a Great Propane Heater it really heat up the Rooms it has a place for 2 Fuel Keg ,it has a Fan on it and it has 3 speeds Low, Medium and High . It also has 2 Hot Plates on it . When you turn the heater on low 1 hot plate will heat up , and when you turn it on High both Hot plates will heat up.. This is the Best Heater to invest in.

Helpful?4EPR4ONETL6419398780