Hi everyone, not sure where to post this, think this is the closest forum to my question. I own a repair shop, with fuel oil heating. We have an outdoor above ground 300 gallon tank that feeds through the wall into our burner. Ive been noticing a trend lately when temperatures drop below 25 or so we start to have inconsistent heat. The flame pops on and off, like its misfiring and eventually shuts down. Once the day goes on and the temps warm a little, it works fine. Im thinking we must be right around the gelling or clouding point and causing the nozzle to clog. Weve added more than enough anti gel to a previous load thinking it was a bad run, but when we refueled with a known company in our area our problems didnt go away. I found a heated wire to wrap around the feed to keep a pipe warm,it says it was used to keep water pipes from freezing, but im wondering if theres another option out there. Maybe some sort of agitation in the tank will keep the temps up? Is there a warming mat we can put below the tank? Drop in a few fish tank heaters I have laying around? Just kidding, Thanks for any help you can provide, hoping for a simple fix.