The pump on my garage to house loop is a grundfos 3 speed. I turned it to low last night and I still had wood and temp was still up this AM. With the aquastat set at 185 I was holding water temps from 180 to 200 all night. Hard to believe what a difference turning down that pump makes. The furnace is cycling (draft open) about 45 min instead of 10 min. There is less smoke out the chimney also. I picked up a barametric damper that I will install tomorrow.
djblech
Greenwood 100 no storage
djblech
Greenwood 100 no storage
