Gold Founding Member
Join Date: Aug 1998
Location: 30.1298228, -97.9771166
Re: Comprehensive guide to converting from A/C to heat only?
I was actually headed down that road with my current '69 project before I decided to just bite the bullet and spend the money on my AC system. You should be able to just install that box and leave everything else under the dash alone. That's what my plan was. IMO it is just not worth the effort to try to eliminate the AC stuff. The heat/defrost will work. Ditto the Astro Ventilation. Most importantly, you will be able to isolate the heat from the vent air register. You just won't be able to add any chilled air.