Mr. Heater 35,000 BTU Propane Forced-Air Heater #MH35FA

by Mr. Heater

Product Features

• 35,000 Btu forced-air propane heater
• Ideal for smaller industrial/commercial workspaces; heats up to 800 square feet
• Runs up to 12 hours on low setting; automatic shutoff with loss of flame or power
• Requires 20-pound propane tank (not included); 10-foot hose and regulator included
• Adequate combustion and ventilation air must be provided; 1-year limited warranty

Product Details

Product Manual [491kb PDF]

• Product Dimensions: 19.5 x 11.2 x 14 inches ; 16 pounds
• Shipping Weight: 16 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0000C6E3H
• California residents: Click here for Proposition 65 warning.
• Item model number: F270035
• Average Customer Review: 4.4 out of 5 stars  See all reviews (18 customer reviews)
• Amazon Best Sellers Rank: #67,891 in Home & Kitchen (See Top 100 in Home & Kitchen)

Product Description

Amazon.com Product Description

The MH125FAV is the least powerful of Mr. Heater's line of propane forced-air heaters for smaller jobs (see the MH55FAV and the MH85FAV). The heater gives you 35,000 Btu--enough to heat 800 square feet. Though the larger models give you more Btus, each heater in the line shares the same basic features, including an automatic shutoff with loss of flame or power supply and a high-output fan that circulates heat quickly. Hooking the heater up to the 20-pound propane cylinder (not included) is easy, and the 10-foot hose and regulator are included. CSA certified. One-year limited warranty.--Josh Dettweiler

What's in the Box
Heater (heater body kit, control box assembly, valve with thermocouple, wire assembly, electrode, high limit switch [240 degrees F], thermocouple, motor 0.74 A, grille assembly, fan blade, 6.75 x .75 pitch, power, cord assembly, strain relief bushing, piezo ignitor, clip handle, handle), 10-foot hose, regulator, operating instructions and 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.

Product Description

The MH125FAV is the least powerful of Mr. Heater's line of propane forced-air heaters for smaller jobs (see the MH55FAV and the MH85FAV). The heater gives you 35,000 Btu--enough to heat 800 square feet. Though the larger models give you more Btus, each heater in the line shares the same basic features, including an automatic shutoff with loss of flame or power supply and a high-output fan that circulates heat quickly. Hooking the heater up to the 20-pound propane cylinder (not included) is easy, and the 10-foot hose and regulator are included. CSA certified. One-year limited warranty. What's in the Box.. Heater (heater body kit, control box assembly, valve with thermocouple, wire assembly, electrode, high limit switch [240 degrees F], thermocouple, motor 0.74 A, grille assembly, fan blade, 6.75 x .75 pitch, power, cord assembly, strain relief bushing, piezo ignitor, clip handle, handle), 10-foot hose, regulator, operating instructions and owner's manual.

Customer Reviews

Most Helpful Customer Reviews

10 of 12 people found the following review helpful:

3.0 out of 5 stars hot air, January 18, 2008

By 

S. Coales "moneypitminer" (NJ) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Mr. Heater 35,000 BTU Propane Forced-Air Heater #MH35FA (Kitchen)

It took a good hour to get this thing going - holding in the 'pilot' button got real old after the first minute... and out went the flame.

Then a minute longer, and out again.

Eventually, having held in the button until my thumbs turned blue, it stayed on long enough for me to stretch my hands out. pffffffft.

and over... and over...

If it stays lit long enough this unit will work nicely to warm an uninsulated 2 car garage with 13' ceilings in under an hour.

Of course, you'll have crippled hands and be almost deaf from the fan & roar of the flame - but heck!

Good value, a little on the noisy side, but once you break the thermocouple in, it's alright.

6 of 7 people found the following review helpful:

5.0 out of 5 stars Great space heater for garage, July 24, 2008

By 

Consultant (Northeast United States) - See all my reviews

Amazon Verified Purchase

This review is from: Mr. Heater 35,000 BTU Propane Forced-Air Heater #MH35FA (Kitchen)

Bought this to heat up my garage when I need to do a project in the winter (I'm in the Northeast). Amazon had the best price - prompt delivery. It does a good job(my garage is about 400 sq-ft), uses a standard 20# propane tank . Nice and compact for storage when you're not using it.

6 of 7 people found the following review helpful:

5.0 out of 5 stars Propane Forced air heater, January 12, 2008

By 

Zach Hofmanner - See all my reviews
(REAL NAME)   

Amazing product for the price. I put this out in my garage in 30 degree weather, and I was working on my car in my t-shirt. The propane even lasts a long time, and I never even had to crack a door for air, the propane stays at the ground, and seaps out through cracks in the floor and under the garage door