My sophomore year with the Tarm. I've always used my 500 gallons of pressurized storage. For the heck of it I'm burning without it today. I'ts not real cold out, 30*. It runs good! I'm surprised. I have the boiler aquastat set to it's lowest temp. The boiler shuts down at about 180*. Idling most of the time but kicks in nice when there's a call for heat. I know it's "taboo" to idle, but I'm experimenting. This may sound strange, I know idling a gasification boiler is inefficient, but I think I'm burning a heck of allot of less wood. Normally I'd burn all out for about 4 hrs. then work off the storage, 500 gallons of storage doesn't last very long with fintube radiation. When I get down to about 160*, it's time to light up again.