Please post a pic.
I have been using propane catalytic heaters for over thirty years. The ones I have are called "safety heaters" because if the pad stops making heat, the thermocouple (bourdon tube) shuts the gas supply off.
I did have some camping heaters that were propane catalytic that had a warning to not use while sleeping. That was because they had no shutoff device. You can see them in this picture.
The big advantage of my propane heaters is that even if the electricity is down, I still have heat.
Here is a short dissertation on the origins of the propane catalytic heater. It is from my thread titled Best Home Yet.
Well, let's talk about them heaters for a bit, shall we?
Propane catalytic heaters are made up of a fibrous pad that is platinum strands. It looks similar to a steel wood pad.
Now, somehow magically, when the platinum fiber strands mix with a fuel source (propane) and oxygen, it produces a "glow heat".
The heaters are 97% fuel efficient and they do not have to be vented. You must, however allow for some oxygen intake from one of your windows.
The reason that they are 97% fuel efficient is because the fuel never combusts. In all combustion systems, whether it be automobiles or heating systems, there will be a carbon monoxide output.
On regular furnace type heating units, 30% of the heat value goes up the chimney (or, vent in the case of motorhomes). Those are the carbon monoxide exhausts from the combustion process.
With propane catalytic heaters, the only exhaust is carbon DIOXIDE, which is what we humans exhale, and water vapor.
Carbon dioxide is a non poisonous gas. When someone tells you to talk to your plants, it is because all plants strive on the breath you exhale while talking to them. The water vapor is also welcomed by the plants.
You may turn on many types of heaters in your abode, and you may notice how long it takes to warm the place up. That time frame is different with each type of heating mechanism.
I had a wood stove in my 64 International. I was living in Connecticut and doing carpentry. When I got home from work on a cold winter's day and the wood stove had died perhaps around noon that day, my bus was almost refridgerator temperature.
So I would load it up and keep my winter clothes on for an hour watching the flame and anticipating when it would be warm enough to play guitar. An hour later, I could remove some of my garb, but it was not for another hour that it would be warm enough to move my fingers on the guitar.
I love wood stoves, but for them to be a primary source of heat, they need a tender.
The great thing about a propane catalytic heater is that it is a radiant heater. It heats the mass of objects as opposed to heating the air. So start it up, sit in front of it, and instantaneously, it is like you are sitting in front of a fireplace. Those heat rays seek you out.
These types of heaters were developed in 1929 by the French. They wanted to develop a heater that they could use while working around airplane engines. It needed to safe as to not ignite the engine fuel.
Being that the catalytic action works at a significantly lower temperature, there is not enough temperature to ignite a combustion.