HVACServices Furnace Digital Thermostat by Greg Zimmerman June 8, 2019 written by Greg Zimmerman June 8, 2019 This mod replaces the mechanical furnace thermostat with a digital one for better and more accurate control. This is a great addition to the Coleman bluetooth A/C upgrade or if you need digital control of your A/C. – $75 2 comments 0 FacebookTwitterPinterestEmail Greg Zimmerman previous post A/C mod next post Roof Vent Cover 2 comments Steve Allen November 9, 2019 - 10:46 pm The photo shows what looks like a small hole to the left of the new thermostat. Is that hole from a pop rivet for the original thermostat? Can the new thermostat be installed to cover over the original thermostat pop rivet holes? Reply Greg Zimmerman November 10, 2019 - 8:36 am At the time, that vertical thermostat was the only one I could find at the store. If you get a horizontal, heat only, battery operated thermostat, then yes, it can cover the existing hole. Reply Leave a Comment Cancel Reply Save my name, email, and website in this browser for the next time I comment.