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  • Mr. Heater MH35LP 35,000-BTU Propane Radiant Heater
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Mr. Heater MH35LP 35,000-BTU Propane Radiant Heater

45 customer reviews
| 5 answered questions

List Price: $219.41
Price: $179.99 & FREE Shipping. Details
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  • 35,000-BTU portable propane radiant heater with folding handle and wheels
  • Heats up to 800 square feet; ideal for workshops or construction sites
  • Efficient radiant heat warms objects directly, not the surrounding air
  • Requires 20-pound propane cylinder (not included); hose and regulator included
  • Measures approximately 12 by 10 by 34 inches; 1-year limited warranty
4 new from $179.95

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$179.99 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Mr. Heater MH35LP 35,000-BTU Propane Radiant Heater + Dura Heat TT-360 360-Degree Tank Top Heater
Price for both: $270.85

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Product Description

Amazon.com

The Mr. Heater MH35LP 35,000 Btu portable propane radiant heater is perfect for construction sites where you don't need to heat more than 800 square feet. The MH35LP is a radiant heater, which means it directly heats objects in front of it instead of the surrounding air. This makes it very efficient: you can get up to 12 hours of use from a 20-pound propane cylinder. Hook-up is simple using the included hose and regulator, and handy jobsite features include a folding handle, transport wheels, and convenient piezo push-button igniter. Rugged steel construction means that this heater is going to last, too. CSA Certified. One-year limited warranty.--Josh Dettweiler

What's in the Box
Heater (cont. M-N SS port, burnr/ltfr portables, orifice/burner, thermocouple assembly, tip-over switch, junction block adapter kit, regulator, ignitor, piezo, wheels, handle, two handle-locking knobs, lower main-frame assembly), hose, regulator, 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 Details

Product Manual [657kb PDF]
  • Product Dimensions: 12.4 x 10.2 x 34.2 inches ; 2.6 pounds
  • Shipping Weight: 23.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • Origin: China
  • ASIN: B0000C6E3B
  • California residents: Click here for Proposition 65 warning.
  • Item model number: F270700
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (45 customer reviews)
  • Amazon Best Sellers Rank: #304,840 in Home & Kitchen (See Top 100 in Home & Kitchen)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

30 of 32 people found the following review helpful By Mike Garrison on January 16, 2007
Verified Purchase
After using one of the little Mr. Heater "Buddy" heaters, I expected this to be the same only larger. It's not.

Unlike the "Buddy", this does not have any way to regulate the heat except "on" or "off". Also, it doesn't have a pilot light. Instead, you just hold in a springloaded valve and let gas come out into the heater. There is a piezo sparker that is supposed to light it up, but I have not found it to work very well. However, using a match works OK, and a lighter-on-a-stick (for BBQs and fireplaces, etc.) would work even better.

But once it is lit, it really works quite well. Radiant heaters don't heat the air directly, so the heat tends to be fairly even by the time the surrounding objects start heating the air. This does take some time, though, depending on the size of the space you are heating.

Also, unlike the "Buddy", this requires ventilation, both at the ceiling and at the floor.

Shutoff is done just by shutting off the valve on the propane tank. There is a safety switch, however, which prevents the heater from continuing to pump the place full of propane if the flame goes out.

This is really more suited to a sheltered environment, like an unfinished garage or a carport, but not an indoor environment (like a house). I have used it in my garage. It's fairly quiet in operation, though it does moan during startup.

It runs off of a regular BBQ-sized propane tank (or bigger). According to the manual, it will not work properly running from a smaller tank.
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10 of 12 people found the following review helpful By Trevor Courtney on January 19, 2011
Verified Purchase
I ordered the Mr. Heater MH35LP, but received a slightly different product. The box is labeled Heatstar by Enerco with a part number of HS35LP. It is missing the wheels and upper handle as pictured by Amazon. There is a small sticker placed over the Heatstar label that says MH35LP, but it's clearly a different product and there is no reference to the Mr. Heater brand on the product or documentation.

I suspect that the Mr. Heater and the Heatstar brand are manufactured by the same company and may be equally good products. However, I don't support Amazon sending an alternative product without my consent. It's false advertising to say the least.

And for those that might be ok without the wheels and the handle, consider that the one I received didn't include the hardware required to install the stand that holds it upright. I can't even use this one.
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8 of 9 people found the following review helpful By P. Crosby on December 26, 2007
Verified Purchase
Mr. Heater 35,000 BTU Propane Radiant Heater #MH35LP
This heater is just what I was looking for. Enough heat to keep work going out in the shop when the temperature drops below freezing without the kerosene smell of some other heaters. Easy starting.
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3 of 3 people found the following review helpful By Bruce on November 10, 2011
Verified Purchase
This Mr. Heater unit works great to heat our 24' x 35' garage. It does take a little time to heat the space to sweatshirt temps. when it is 32 degrees F. and colder outside. Heating time really depends on how well your workspace is insulated and if you have a fan to blow the hot air down from the ceiling. The amount of propane used is acceptable. I got about 14 hours out of one 20 lb. cylinder working in the garage with temps. around 25 degrees F. outside. Heater is very quiet, especially when compared to torpedo heaters. Heater works great on the patio for temps down to the mid 50's or so. One evening, we were going to fire up the chimenea but did not have enough time. We rolled out Mr. Heater and had instant heat. The orange glow from the heating element was a fair simulation to actual embers in a fire. Great for two people(and our dog) to sit in front of. The heat felt similar to that of the chimenea. When we were done, just turned off the gas valve, let it cool for 10 minutes and put it back in the garage. We took it camping just in case we had rain and wanted heat under our dining canopy. Luckily the weather cooperated and we used the fire pit the whole time. If you were camping in cold temperatures, it would work well to heat you from behind when sitting in front of a campfire. Unit is very light and transportable. Only precaution that I would recommend would be is to have good air exchange in confined spaces(garage) and watch that the gas hose and anything flammable stays away from the front of the heating element. Also keep the propane tank as far away as possible from all ignition sources. Sure beats the smell and handling of kerosene for a torpedo heater! A great little heater for the money!!
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11 of 14 people found the following review helpful By Angie on April 11, 2008
Verified Purchase
I bought 3 other type of heaters with-in three weeks before trying this one. It works great. We use it to keep warm as we enter and exit our Hot Tub on our patio. It is easy to use and puts out more than enough heat, even on days when it was below 30 degrees. It would be nice if there were a way to regulate the heat output. On warmer days we just move the heater farther away and on colder days we move it closer. Very satisfied with this purchase.
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2 of 2 people found the following review helpful By Marc Bourassa on January 13, 2013
Verified Purchase
I ended up purchasing this for the covered portion of my back patio since the ceiling was two low to safely use the "normal" heaters that you see on patios at restaurants.

This Mr. Heater unit is a bit more industrial looking than those but it's low profile keeps it from grabbing your attention.

What you don't see in the picture (or in the manual or in the description) is that the supplied hose for connecting to the LP cylinder is a generous 12 feet long. The manual (which is overburdened with safety information) wants you to keep your LP tank at least 6 feet away so this gives you plenty of lee way.

Some people have noted problems starting the unit with the supplied piezoelectric starter but I had no issues there. It starts reliably for me every time. I have to admit that it does take a bit longer than I was comfortable with the first few times and there is a definite "woosh" that you get as the gas finally ignites but I never felt it was dangerous and the piezoelectric spark is visible so I *know* it's going to catch in fairly short order. It seems to take about 3 times longer than does my piezoelectrically started bar-b-que.

One note: The Mr. Heater website is not that great. You can't register your products there as of this writing. And their "contact them" form suffers from the same issue (cannot select mandatory State field), so you've got to use an actual stamp to register. A minor item unless you need support from them which I did not.
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Mr. Heater MH35LP 35,000-BTU Propane Radiant Heater
This item: Mr. Heater MH35LP 35,000-BTU Propane Radiant Heater
Price: $179.99
Ships from and sold by Amazon.com
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