advice on cleaning catalytic heater?

[maritimecamper]

l found this online. .. First, disconnect the propane from the heating element. Then vacuume, very gently, perferably with a brush attachment. Do not blow air into it, that will lodge any debries deaper. You can blow through the fuel inlet by fully opening the valve and using a wetvac on the blow side. You do not want to use compressed air. These proceedures should clear the element and allow the fuel to spread the way it was designed. You should also check your tank to make sure that it has enough fuel and pressure to feed the heater properly. Low pressure or fuel level can also cause the symptoms that you gave. Also make sure the tank is not frozen or very cold, this can cause the fuel to maintain a more liquid state and not atomize properly as it leaves the tank.