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Mr. Heater Double Tank-Top Propane Heater with Piezo Ignitor can be mounted directly to a 20-pound propane cylinder. It is made of rugged durable materials and uses manual ignition, reaches its full heat output in seconds, and requires no electricity to run. Its operating time 10-52 hours and has a hi-medium-low regulator.

User Reviews about Mr. Heater Double Tank-Top Propane Heater - 8 - 000-28 - 000 BTU - Model# MH24T

After reading reviews of various products I decided on Mr. Heater Double Tank-Top Propane Heater - 8,000-28,000 BTU, Model# MH24T. I like it so much I bought a second. They both sing to you for a short period of time. Otherwise, they are quiet and put out enough heat we have not yet needed more than the lowest setting. The heater is also much easier to place the tank. All you need is one wrench to tighten the hose. -- Mr. Heater Double Tank-Top Propane Heater - 8,000-28,000 BTU, Model# MH24T

My husband is a cigar smoker and since smoking is not permitted in the house I got him this for Christmas and he gets to enjoy his cigar outside no matter what the weather!!!!! -- Great product

I have had one of these for several years. I bought a refurbished unit from another vendor for heating up my shop or garage. It is a great little heater.

The only problem I have ever noticed is one of the burners takes 10-12 minutes to get to where the whole surface glows. Until then there is a gradually diminishing small flame at the top. It is probably some issue with that particular burner, but I never thought it a big enough issue to do anything about it.

A minor inconvenience is as mentioned elsewhere once both burners are turned on you can't turn off just one. However with a little practice and forethought it is usually not a big problem because, the High, Medium and Low control adjusts both so you can turn both down to the lowest setting. The upside is you effectively have 6 different heat levels, 3 with one of the burners on and 3 with both on.

Another minor inconvenience mentioned elsewhere is you need to use a long match or lighter to safely light this model. This is true and to be expected from a bare bones utility heater.

Also mentioned elsewhere is the short hose causing stress. I found this can be solved by, as your mounting it on the tank feed the hose from the inside out through one of the hand hold openings around the end of the U shaped tank top and back in to the tank connector. Then mount the unit between the hand holes. At first this may sound like it is counter productive because, it makes a longer path for a short hose. That is true but the issue is really that the other way the hose is asked to make a bend that is too tight, not that it is too short to reach the connector. See picture added to listing.

I would feel I need to comment on a safety issue mentioned in another review. There is NO CARBON MONOXIDE POISONING RISK with this type of heater. The risk without ventilation is THE OXYGEN WILL BE USED UP. That can kill you but not in the same way and is much easier to deal with. The main byproduct from combustion with propane is water. That is the other issue you need to be aware of. A fair amount of moisture is added to the air when the propane is burned. Unlike most types of heat which usually lower the humidity because warm air can hold more water than cold, in a tight structure burning propane can add sufficient moisture to push the humidity up to where condensation occurs causing various issues.

Both the moisture and oxygen depletion issues are of course worse in a small tight area. My shop is a fairly large very tight area and I deal with both of the above issues by using this heater to get it up to temperature quickly and then switch to a smaller electric heater along with pulling some heat from the house it is attached to.

The cost of operation is very reasonable because it is designed to go on a 20 LB or larger tank. I get my 20 LB tank filled for $10-13 which is not too bad for the amount of heat that produces and much cheaper operation than the units that use the non-refillable 1 LB tanks.

Like most things there are issues to be aware of. This is a very reliable heater, that when used properly in appropriate conditions works very well.

-- Good reliable heater

I am using to heat individual rooms as I rehab a bldg. Its better then heating the whole bldg. Not sure about the CO2 so I make sure there is a open door. Works fine for this purpose. I use on a double size tank. -- Double Heater

Because this heater doesn't have a low oxygen sensor like the "Big buddy", this heater should only be used for "leaky" spaces like garages, barns, etc. rather than indoors. That's fine because as a radiant heater, it's ideal for this type of space. Heating the air isn't as effective since the air will seep out through the cracks and vents anyways.

I use mine in an attached 2 car garage that's been converted to a shop. Here in Michigan it easily gets to single digits (F) in the winter and this heater makes it comfortable enough to work in. While it may only raise the ambient temperature by 10-20 degrees, since it's putting out radiant heat it feels much warmer. You may have to move it around a little as the effective field is about 10 feet.

I would have given it 5 stars but there are a couple of quirks and comments:

1) Very thin copper tubing from the lighting valve is easily damaged. I wish they had routed it where it was more protected. Mine still works fine but the tubing is dinged and kinked now and I'm paranoid that it will die unexpectedly.

2) Can't turn off a burner once it's lit without turning off both. There is a single valve which feeds both burners. Each burner has a safety valve. Once both burners are on the only way to switch to single burner is to turn both off, let it cool for a few minutes, then re-light only one burner. This is a pain since typically you crank the heat to start then turn it down to maintain a given temp. -- Radiant heater ideal for garages and similar unsealed spaces