Here's another post on Furnace Filters.
https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4530062/1
To save money, I heat my house in the Summer and air condition it in the Winter.
https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4530062/1
To save money, I heat my house in the Summer and air condition it in the Winter.
Last edited: