Before it gets that cold, it's a good tkne to clean and check filters. Easier now before the snow. Cleaned the heater and above head air cleaner. Winds blowing hard enough to suck all the dust away from the shop..

 

Good tip! I need to find an more inexpensive substitute filter for my Wen air filter. 

I've been buying at M.enards. 

Thanks Have to check them online, we don’t have one local

I get mine on Amazon . Either merv 11 or 13. Not cheap but less than the big orange or blue.