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Mr. Heater 450 sq ft Propane Patio Heater 18000 BTU

Portable propane heat with 3 settings, built to cover up to 450 sq. ft. wherever there's no outlet handy.
Mr. Heater MPN F227500 In Stock & Ready to Ship
$159.99
Free shipping on orders over $249
Ships within 24 hours · most orders arrive in about 2 business days
Ships free on orders over $249 $24.99 flat shipping until your order reaches $249.

About Product Overview

Cold garage, patio, or job site — the Mr. Heater LP 18000BTU brings portable propane heat to spaces up to 450 square feet, with a rated range of 300-600 sq. ft. depending on layout and insulation. It's built for outdoor use, with a steel housing that stands up to the abuse of a work site or the weather swings of an open patio.

Three heat levels let you dial in output for a mild evening or a genuinely cold one, and running on propane means no cords, no outlets, and no waiting on a breaker to warm up a space. At 22.7 lbs and a compact footprint, it's easy enough to move between a garage, a deck, or a trailer bed. This is a straightforward, no-thermostat unit — set your heat level and go, which keeps it simple for anyone who wants heat without a control panel to learn. Backed by a 1-year limited parts and labor warranty from Mr. Heater, a name built on propane heating equipment.

  • Heat output: 18,000 BTU
  • Heating area: up to 450 sq. ft. (rated range 300-600 sq. ft.)
  • Fuel type: Propane
  • 3 heat levels
  • Steel construction, black finish, outdoor use
  • Weight: 22.7 lbs; 1-year limited parts and labor warranty

The Details Specifications

Brand Mr. Heater
Model / MPN F227500
UPC 089301275003
Weight 23 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

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01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Mr. Heater. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

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Authorized dealer · Mr. Heater

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