
Features
- 30,000-80,000 Btu convection heater
- For construction sites, emergencies, thawing; heats up to 1,900 square feet
- Piezo electric pilot ignitor
- Requires 40-pound cylinder (not included); 10-foot hose and regulator included
- Adequate combustion and ventilation air must be provided; limited 1-year warranty
Price: $139.99
Product prices and availability are accurate as of the date/time indicated and are subject to change.

| Product Information |
Amazon.com
The Mr. Heater MH80C 30,000-80,000 Btu portable propane convection heater is ideal for heating large spaces of up to 1,900 square feet. The convection design draws cold air up from the floor through propane burners then distributes warm air out through the top, giving you 360-degree directional heat. The unit features a piezo push-button igniter and an adjustable heat output control (from 30,000-80,000 Btu). For safety, the heater shuts off with loss of flame, and the sturdy base keeps it upright. The included 10-foot hose connects to 40-pound (minimum required) propane cylinder. CSA Certified. One-year limited warranty.--Josh Dettweiler
What's in the Box
Heater, thermocouple, manual, operating instructions, regulator, 10-foot hose
Five Tips for Buying a Heater
Choosing a space heater is a matter of sifting through a bewildering array of types, power ratings, and fuel sources. Let's break it down a little to make the process easier.
What are the different types of space heaters?
Radiant heaters emit infrared radiation that directly warms the objects in front of the heaters (rather than the surrounding air). If you only need heat by a desk or in a small section of a room, a radiant heater is quiet and will use very little power.Forced-air heaters use a fan to blow air that has been warmed by metal or ceramic heating elements. A forced-air heater is appropriate for quickly heating up a small- to medium-sized room, but can be noisy.Convection heaters draw cold air from the floor; the air is warmed by heating coils and emitted from the top of the heater. A convection heater is appropriate for quickly heating up a small- to medium-sized room, but also can be noisy.Radiators work by heating oil enclosed in a reservoir, gradually heating the surrounding air. If heating speed isn't an issue, you might want to opt for a radiator. These are extremely quiet and effective--perfect for bedrooms.
Should I buy an electric or a combustion model?
If you want a heater that will be available in emergencies, or that can heat areas larger than a single room, choose a "combustion" model--one that is powered by a gas or fuel like propane, kerosene, natural gas, or diesel. Which fuel type you choose depends largely on convenience and local availability. For example, diesel would be appropriate for a heater you take with you on long car trips.
How powerful a heater do I need?
Heaters are rated by BTU, which stands for British Thermal Unit (the amount of heat needed to heat one pound of water by 1 degree F). To find out how many BTU you need:
Calculate the volume of the space to be heated by multiplying square footage by height. Multiply that number by 4 if your insulation is poor, 3 if it's average, or 2 if it's good.The resulting number is a ballpark figure for how many BTU you'll need.
Do space heaters cost a lot to operate?
As a general rule, electric space heaters are more expensive to use than combustion models. To ensure energy efficiency, a thermostat is a