Took me 5 winters to figure out my furnace filter was the wrong size

I kept wondering why my utility bills were so high every January and February. Then my HVAC guy came out for a tune up last fall and pulled out my filter. It was a 16x25x1 but my slot is actually 16x25x4. He said I was basically choking the system for years. Has anyone else been running the wrong filter size without knowing it?

2 comments

2 Comments

rose_young2d ago

Call your HVAC guy and ask if he's trying to sell you a more expensive filter.

miller.jason2d ago

Has anyone else noticed @rose_young this is how everything gets sold now with some extra step you didn't need?