Is a pre-filter required for my furnace?
The previous owner of my house installed a very complex furnace and air purification system. It's a Trane XV80 furnace with a Perfect Fit Dual Filtration Electronic Cleaner System as well as a Sanuvox Ultraviolet Air Purfier. Some time ago, there was a frequent static discharge coming from the bottom of the furnace near where the furnace meets the air intake tunnel. Upon investigation, I determined there was a metal pre-filter at the bottom of the furnace right below the two electronic cleaner modules. The static discharge was coming from near this pre-filter. I decided to clean that pre-filter but I damaged it during removal and had to throw it away. I wasn't sure if the electronic cleaner required that pre-filter, so I removed the electronic cleaner modules and replaced them with a standard 5" thick replaceable filter and have been running it like that ever since. What I'd like to know is if I can put the electronic cleaner modules back in without that metal pre-filter or if I need to find a replacement pre-filter. The pre-filter size is 17"x25"x1" and I can't seem to find any replacement filter of that size. The furnace is a bottom intake and sits on sort of an air intake tunnel. There's a filter on the metal screen at the end of the tunnel where it meets my living room wall.

• Watches Buying Guide
• Toys Buying Guide
• Shoes Buying Guide
• Pet Supplies Buying Guide
• Games Buying Guide
• Jewelry Buying Guide
• Hand Tools Buying Guide
• Furniture Buying Guide
• Clothing Buying Guide
• Books Buying Guide