This will show you how to adjust the pump pressure on your kerosene forced air heater or as they are commonly called, a torpedo heater. The pump pressure determines the heat output of the heater. It’s very simple to adjust as you will see. I bought this Remingtom 35 forced air heater used on Craigslist for , it worked fine but I wanted to see if the pump pressure was correct & after hooking up a pressure gauge I found that it was about 1.4 PSI lower than factory specs. After adjusting it the heater really heats up great! Not a bad find for bucks! It heats up my 2 car garage in about 15 minutes to 80 degrees. That’s when it’s 40 degrees outside. maybe this video will be helpful to someone.