Just purchased a new old stock heater, probably about 40 years old, never been fired. It is the sort with the round wick. The mechanism that turns the wick up and down is wrung ( I think ). The wick is far too high, can I have some tips on how to manipulate the wick back down. No fuel has been put in the appliance yet. I appreciate that this is not the right forum, but there is a wealth of information amongst the members. Thank you.