US
Mr. Heater

Mr. Heater Propane Convection Heater 80000 BTU

  • Indoor Outdoor Usage: Outdoor
  • Fuel Type: Propane
  • Heating Method: Convection
  • Heating Element: Radiant

Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A high-output, electricity-free convection heater built for large open spaces, worth it if you have a 100 lb tank and a big area to heat rather than a room.

As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.

ASIN: B00ZXNLGRAModel: F270490Category: Propane Space Heaters

Sizes Available

30k to 80k BTU/HR75k to 200k BTU/HR

Need a different one? Pick on Amazon →

Overview

Output on this Mr. Heater convection heater spans 30,000 to 80,000 BTU/hr, mounted on a 100 lb propane cylinder to warm large uninsulated spaces such as a barn, warehouse or big job site rather than a tent or small garage bay.

It needs no electricity and ships fully assembled with its own 10 ft hose, regulator and P.O.L. tank connection, so setup is mostly connecting it to a tank rather than wiring or plumbing anything. The standing pilot lights the main burner without a battery-powered igniter.

  • 30,000 to 80,000 BTU per hour
  • Heats up to 2,000 square feet
  • Runs up to 14 hours on a 100 lb propane tank
  • Ships fully assembled with hose and regulator

Who it's for

Barns, warehouses, large garages and job sites needing roughly 2,000 square feet of heat off a large propane tank are the intended use. A bedroom, camp trip or any space a 1 lb cylinder heater like the Buddy line would cover is overkill for this unit.

Pros and cons

Pros
  • Wide 30,000-80,000 BTU range for large spaces
  • No electricity required to run
  • Ships assembled with hose, regulator and tank connection included
  • Standing pilot for added safety
Cons
  • Sized for large spaces, overkill for a single room
  • Needs a 100 lb propane tank rather than a small cylinder

Performance notes

Convection heating pushes warm air upward and outward from the burner rather than radiating directly like a tank top heater, which suits open, high-ceiling spaces. On a 100 lb tank it is rated to run up to 14 hours, and the standing pilot means no electrical outlet is needed to keep it lit.

Specifications

BrandMr. Heater
ModelF270490
Dimensions & fit
Item Weight13.4 pounds
Item Dimensions D x W x H15.7 × 16.9 × 21.8 inches
Capacity & performance
Heating MethodConvection
Heating ElementRadiant
Max Temperature Setting120 °F
Heating Coverage2000
Heat Output80000 british thermal units
Power & efficiency
Fuel TypePropane
Power SourceGas
Construction & materials
ColorSilver
Compatibility & installation
Mounting TypeFloor Mount
Included components
Unit Count1
Warranty & support
Warranty Description1 year
Other details
Indoor Outdoor UsageOutdoor
Form FactorTower
Room TypeGarage
Number of Items1
Recommended Uses For ProductGarage, Greenhouse, Patio
Special FeaturesPortable
Part NumberF270490
Item Type NameHeater

Frequently asked questions

What size propane tank does this Mr. Heater 80,000 BTU convection heater use?

It is built for a 100 lb propane cylinder using the included hose, regulator and P.O.L. connection.

Does it need to be plugged in?

No, it runs on a standing pilot and needs no electricity.

How large a space can it heat?

Up to about 2,000 square feet according to the manufacturer's specifications.