That's good to know Russ. I am planning to put at least 2 maybe more in my shed. The boiler will help preheat the oil to room temp. They will be semi-permanent. No need to move just fill. Judging by Doug's boiler he uses between 800-1200 gallons so 2-3 330 gallons totes will be a good start. Still just napkin drawings at this point. Still no boiler!