ATTENTION: All Postings that advertise items for sale will be deleted from the Discussion Forum. You may post sale items for free in the Classifieds section. Sign up now.
Re: Duo-Therm furnace by Jason
The older models will blow cold air for about 10 min. before heating up.
Mine is a 65920-001 in a '76 Skyline, and that is the way it works.