I have a brand new Janitrol gas furnace. I have had it for 2 years and have yet to hook it up. I'm not sure as to what Model it is or what even the power that this unit has. I would like to sell it and need this information so I can share it with the new owner. Where can I locate Model # etc. and once I find that where would I find a manual? Seem to have lost that... It is a large unit for the garage... assuming that... :-)