Heater
Tried my heater in my camper before i take it to hunting camp and have problem. The heater blows but its cold air. you can here something clicking but its not lighting.
Forum Discussion
To isolate the problem I would first lit the stove and make sure I had nice blue flame (no orange). That would confirm you have propane and that OPD is not messed up and so heater should be getting propane. Then look at some youtube vids on cleaning your heater before you spend any money.
