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Product Details

• Amazon Sales Rank: #47102 in Kitchen & Housewares
• Brand: Mr. Heater
• Model: MH42T
• Dimensions: 10.00 pounds

Features

• 8,000-42,000 Btu triple tank-top propane infrared heater
• For outdoor use only; heats up to 1,000 square feet
• Operate one, two, or three burners at a time; up to 10 hours on 20-pound cylinder
• Mounts directly to 20-pound cylinder (not included)
• Adequate combustion and ventilation air must be provided; limited 1-year warranty

Amazon.com Product Description
The Mr. Heater MH42T 8,000-42,000 Btu triple heater is a step up from the two-burner model, giving you the flexibility of using one, two, or three burners. The unit mounts directly to 20- to 100-pound cylinders. It uses infra-red heat, which means that it warms the objects in front of it, not the surrounding air. This gives you more heat per Btu, which means that using all three burners at the highest of the three settings will keep you warm even in miserably cold situations. Each element shuts off automatically with loss of flame. Do not use in unventilated areas. One-year limited warranty.--Josh Dettweiler

What's in the Box
Heater (manifold with safety shutoffs and orifices, twelve-inch thermocouple lead, plenum assembly, screen assembly, bolt set, replacement regulator with soft nose POL, reflector, wire guard, metal ring, collar mounting bracket assembly, hose assembly/less regulator, replacement safety shutoff with orifice, locking knob, bold with seal washer, plenum assembly with clip), owner's manual

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 must-have feature for any heater. For radiant heaters, models with a 360 degree heating surface can heat larger spaces. If you need a forced-air heater, models with ceramic elements tend to be more efficient.

Are space heaters a fire hazard?
Space heaters are implicated in about 25,000 residential fires every year. To ensure proper safety, always follow the manufacturer's usage instructions and fill out the warranty card to receive informational updates from the manufacturer. Also, look for extra safety features such as an automatic shutoff switch that can shut down the unit if, for example, it gets upended. In addition, choose a model where the heating element is adequately enclosed within the unit.

From the Manufacturer
Take the chill out of that garage, shop, or patio party with this 8,000 to 42,000 BTU radiant propane heater from Mr. Heater. Just mount it to a 20-pound propane cylinder for optimal stability and operate with one, two, or three burners at a time to burn at nine different BTU settings. Equipped with a high, medium, and low regulator, three safety shutoffs, and three thermocouples, the Triple Heater will burn for approximately 10 hours on high.

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Customer Reviews

Mr. Heater -- 3 burner
This heater is exactly what I wanted. However, I haven't had an opportunity to use it yet. I'll be using it in the fall.
Thanks for a good and reasonable priced item.

Got Heat
I use this in my shop which is not well insulated. It takes the bitter cold off and gives a warming location. Nice that you can run 1,2, or 3 burners on low, medium, or high for a variety of heat levels. Nice and solid mount on the bbq tank. Burns through the tank about as advertised, maybe 10 - 12 (guessing from limited use) hours or so on the high setting with all 3 burners on, scale down from there with the lower settings or less burners.

The only negative I see is that once you start more than one burner, and want to go to a lower number of burners running, you have to shut the whole thing down and let it cool and then light the burner(s) you want. Frankly this doesn't happen to me as I need all 3 all the time for now.

Works as expected
Purchased this item to heat my two bay garage. Although I use it on a peroidic basis, it works as expected. No problems with keeping all three burners going. Works Great !!