18,000 BTU Big Buddy Portable Propane Heater (No Fan)
18,000 BTU Big Buddy Portable Propane Heater (No Fan)
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Mr. Heater

18,000 BTU Big Buddy Portable Propane Heater (No Fan)

319 ratings
18,000 BTU Big Buddy Portable Propane Heater (No Fan)18 000 BTU Big Buddy Portable Propane Heater No Fan
Pack SizeSingle

Key item features

  • Powerful Heat Output: This portable propane heater delivers adjustable radiant heat at 4,000, 9,000, or 18,000 BTU per hour.
  • Versatile Application: Approved for both indoor and outdoor use, it effectively heats areas up to approximately 400 square feet.
  • Adjustable Settings: Features three distinct temperature settings: low, medium, and high, allowing for customized warmth.
  • Easy Propane Connection: Equipped with swivel regulators for straightforward setup with two 1-lb propane cylinders or a 20-lb tank using compatible accessories.
  • Enhanced Safety Features: Includes a Life Safety System with an oxygen depletion sensor, thermal shut-down system, and a tip-over switch for user protection.
  • Accessory Restriction: The use of unauthorized accessories or attachments is strictly prohibited and may lead to serious injury.
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Specs

Fuel type, PropaneBtu, 18000Patio heater type, FreestandingBrand, Mr. HeaterFinish, GrayColor type, Multicolor

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About this item

Product details

Cold campsites and frozen lakes call for the warmth of a Big Buddy heater. For your next excursion, the Big Buddy will keep you comfortable with up to 18,000 BTU of heat. Swivel regulators make for easy setup; just screw on two 1-lb propane cylinders or connect to a 20-lb tank using Buddy accessories. The 450 square feet of coverage makes any ice shanty a sauna and any deck a sunroom. With the heaters’ registered Life Safety System you won’t sweat too much knowing the oxygen depletion sensor, thermal shut-down system, and tip-over switch are keeping you safe. For all of your indoor and outdoor adventures, the Big Buddy is there for you.
  • Emits 4,000, 9,000 or 18,000 BTU/hr radiant heat
  • Designed and approved for indoor and outdoor use
  • Heats up to approximately 400 square feet
  • 3 temperature settings: low, medium, and high
  • The use of un-authorized accessories/attachments with this heater are expressly prohibited, may cause serious injury, and will void the warranty.
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Specifications

Fuel type

Propane

Btu

18000

Patio heater type

Freestanding

Brand

Mr. Heater

Warranty

Warranty information

1 Year Limited - Parts

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.4 out of 5 stars
stars
319 ratings171 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars76% (241)
  2. 4 stars9% (30)
  3. 3 stars4% (13)
  4. 2 stars2% (5)
  5. 1 star9% (30)

Reviews summary

Pros

  • : The heater undercuts comparable models on price.
  • : The unit has sturdy construction and reliable operation.
  • : The product operates with minimal upkeep.
  • : The heater installs rapidly and powers on immediately.
  • : A 1 lb canister sustains low and medium outputs but not high.
  • : The heater ignites quickly and delivers effective heat.
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Showing 1-3 of 171 reviews

Nov 21, 2025
Reviewer name: George
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Mr. Heater Big Buddy propane heater

Very fast delivery. A very convenient and portable way for your heating needs. Easy to light and very hot. I also purchased the five foot Mr. Heater hose to connect it to a twenty pound propane tank.. Makes it less portable but very economical.

Helpful?4NWN2I4XXL364382667
Jan 6, 2026
Reviewer name: Robert
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Got on clearance and couldn't pass up...

The way it lights is more difficult than the regular buddy heater I have. I have only tried it so far with one 1 lb propane bottle and it works for the first 2 settings out of 3 total settings so low and medium. My reg. buddy only has a low and high (or med on this one). Look forward to using it more but still using my reg. buddy heater till it gets colder. Wish it was easier to light.

Helpful?4NWN2I4XXL364382667
Nov 13, 2025
Reviewer name: Matt
Item details
Multipack quantity: 1
Sold and shipped byRidgeline Distribution
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A really great little heater

This is my second one of these. I replaced the first one because i broke it when i dropped it. I had a good deal of difficulty getting it started the first time, but once i did, it worked great. I attach the converter hose to a 20 gallon tank instead of the two 1 gallon cannisters and get an entire winter season out of it. Gets heavy usage to heat my shed

Helpful?4NWN2I4XXL364382667
Current price is Now $159.00
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was $190.01
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