Hey guys - recap...I have the orlan 60. Large house with two furnaces with hot water coils to each. The last problem I had was my boiler wouldn't maintain hot water with any amount of load to it. You guys all determined my wood was too wet. I began splitting my wood and my 4700 sq ft house has been 74 degrees 24 hours a day no problem...and my electric bill last month was $140. Can't beat that with a stick!! Last weekend (and again at 5:30 this morning) my house got cold. Fans are blowing on the furnace, but I'm getting no heat. Generally when that happens, I've run out of wood and my boiler says FUEL. I fully expected that this morning. However, when I got out to the garage, it said my water temp was 177. That's pretty normal. So I felt both pipes running from both pumps. Both pipes were cold...which means my furnaces are blowing on cold coils. Both pumps were running, but not getting any hot water to them to circulate. This happened last Saturday as well. I tried resetting my boiler...nothing. I even turned the boiler off...and then back on. Usually you can hear the pumps reset and start circulating. Nothing. I messed with it for about 30 minutes. Even shut the furnaces down and restarted them hoping the new call for heat would kickstart the pumps again. Nothing. I'm not sure what I did finally...but they started pumping again and the pipes got very warm. Problem solved...I thought. The one side of my house began to warm up. I go down to the furnace and the incoming hose, the coils, and the return hose are all hot like they should be. Then I go to the new portion of the house and the furnace is blowing....but both hoses - incoming and return - and the coils - are ice cold. Nothing. My pumps are both hot. Both pipes leading to and leaving from the pumps are hot...but no hot water is getting to the coils at the furnace. What in the world can cause that?????? Do I have some sort of air lock or something?? Both pumps are Grundfos pumps...I believe. Any help you guys can give based on that info would be great!!