Bryan asked: Hi. This website is great; there is really good information. My question is regarding large filters. My furnace requires a 5-inch pleated filter, but because these are hard to find I have placed 5 1-inch pleated filters from 3M. Is this going to restrict too much airflow? Should I buy a 5-inch or [...]
Furnace Filter Questions and Answers
This is the section of our blog where we answer some of the questions asked by our visitors. Many questions have been answered here. If you can’t find the answer to your question just ask using the Contact form and we will answer by email or create an article for you here. We will only share your first name.