Where can I find an installation/owners/parts manual?

Contact Heil direct

Heil® Heating & Cooling (http://www.heil-hvac.com/)

That is a pretty old Heil unit, the (ICP) Heil web site will not have that unit on the web. What are you looking for ? Post the full model number and serial number, and I might be able to find the part number for what ever you may need...

I posted the link so he could contact Heil at the factory. My Heil books do not go back that far.

ICP will not have them on file, ( I deal with their tech support every week) I have install / tech manuals in my office back to the early 1960's as hard copy manuals. He can try, or post the units model number

I have a Quaker 40,00 BTU wall furnace in my cabin up north. I think the Hi Temp limit quit on it and I had to jumper it out to get it to run.Where can I buy a new limit switch from? Its model # is WRF65A2N. I bought a Fan Switch # 05559 from Sears years ago but they do not know how to get the Limit Switch now. There is a bank of 3 switches in the middle of the furnace, it is the lower switch. After I jumpered it worked fine from the thermostatic. The pilot worked fine but would not open the gas value to light the burner unit. It works good now but I do not want that jumper on it for safety reasons. Where can I find which swith # it is and buy a new one? [email protected]

How about a manual for a heil df-112 sn j 22337? Should have an install around 1961ish.
Thanks