Antique Sad Iron Heater Gardner Mass. The wick adjusting wheel turns and wick raises and lowers. The fuel cap is stuck and I was not able to turn it, rather than mess it up I will let the collector free it up or leave it as they choose. I have checked all over the internet and have not found a Sad Stove with the type of wick turner shaped like this one. This stove is not marked on the front but believed to be Union.