Hi, Im new to this, and do not have the jargon down probably. My Keystoker Rice Coal system is actign up after a year and a half nonproblematic use. Tonight it shot up to 20 pressure and 290 degrees, while the thermostat was on 72 degrees. We tried to bring the heat down by removing pins from the fan timer disc, and then slowing the feed, with little change. Then we turned our thermastat up to 88 in hopes of drawing the heat out of the stoker into the house. We have large iron radiators, and only about half of them began to warm, and not very hot either. It is now at 12 pressure and 240 degrees, the radiators are not very warm, and the house is cooling down into the 60s. Inside the stoker it is gurgling, and the overflow tank is also making bubbling noises. The person that installed our system is of no help atm, since we have done what he said - ie take out pins, reduce feed, turnup the thermostat. At one point the top (I think the flow valve) was making clanging noises while the pressure held at 20. Any suggestions/help would be greatly appreciated. Thanks in advance.