Product Description:
If you're looking for simplicity and convenience in an outdoor-only heater, the Mr. Heater MH12T 8,000-14,000 Btu single tank-top propane heater may be the answer. As the name implies, this unit mounts directly to the top of a five- to 20-pound propane cylinder (sold separately). To allow you to choose between conserving fuel or kicking out more heat, the MH12T has three settings, Hi (14,000 Btu), Med (12,000 Btu), and Lo (8,000 Btu). The heater shuts off automatically with loss of flame. Do not use in unventilated areas. One-year limited warranty.
--Josh DettweilerWhat's in the Box
Heater (replacement safety shutoff with orifice assembly, thermocouple lead, plenum assembly, grid screen assembly, replacement regulator with soft nose POL, wire faceguard, knurled lock nut, reflector, replacement regulator H-M-L w/S.S., tank union T/C, orifice)
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.
Product Details
- Feature:
- 8,000-14,000 Btu propane radiant heater
- For outdoor use; heats up to 400 square feet
- Variable output; provides up to 30 hours heat at high setting on 20-pound cylinder
- Mounts directly to 5- to 20-pound propane cylinders (not included)
- Adequate ventilation must be provided; 1-year limited warranty
- Binding: Tools & Hardware
- Brand: Mr. Heater
- EAN: 0089301731004
- IsAutographed: 0
- IsMemorabilia: 0
- Label: Mr. Heater
- Manufacturer: Mr. Heater
- Model: F273100
- MPN: F273100
- PackageQuantity: 1
- ProductGroup: Kitchen
- ProductTypeName: ABIS_KITCHEN
- Publisher: Mr. Heater
- Studio: Mr. Heater
- UPC: 089301731004
Accessories
Customer Reviews 
this is good for outdoor heating only, but works very well
2008-10-27use this in my green house in the dead of winter. I turn it way down by carefully cutting down the valve on the tank. the low setting is almost too high for my needs. But, I can get several weeks of night time operation out of one 4.6 gallon tank of propane. if you turn it up, it really puts out a lot of heat. Oh yeah, dont touch it when it is glowing red!
Quick portable heating
2008-04-06This heater makes some noise on startup for some reason, but soon settles down and provides good efficient heating. It is much less expensive to operate than the portable electric radiator I was using before and much faster heating too. I recommend it.
Feeble little heater
2008-03-17This heater is a little weak when heating an insulated garage when it is between 10 and 20 outside. Better get the 25k btu version.
This doesn't have a built-in piezo electric igniter either. So you need a long stem lighter.
There are better heaters like this. Don't bother with this one.
mr. heater potabble propane heater
2008-03-01i bought the heater for a 12 by 12 shed in the winter time. installing and lighting is very easy. after lighting the heater it definately put out enough heat to warm a very non insulated tin shed. time spand was only about twenty minutes to warm up in about 35 degree weather.i am not shure how long it will run on a twenty pound bottle,because i only used it on low setting for about 8to 10 hours. the bottle has hardly any propane missing so it should last along time on low setting. over all a great portable heater.
Nice and toasty
2008-02-13I have kerosene heaters but they are messy and require some maintenance and if not in good working order are smelly. This propane heater requires no maintenance and works every time. Propane is cheaper than kerosene now so I'm sold on the propane heater.It has three positions on the valve. Low, medium and high. Will run for 52 hours on low setting with a 5 gallon tank. Easy to use. Happy with the purchase.
Steve
(34 customer reviews)
My Cart
Larger image or other views
