and when the time came for me to pull the plug and move south………just slap the oil gun on for the home buyer that wants to walk over and hit the thermostat.
Its going to get lonely up here and I think an big oil run property don't sell for just that reason so I don't buy your logic.
You can take the granite countertops with you, nobody will care about those. Energy is soon to be the ONLY thing.
I want a cute interface like that you showed, hey AC (coaltrol) get on the stick here , I want more lights and an ipad3 interface please. That way I can rush out and buy one instead of saving money for the town taxes
hey AC (coaltrol) get on the stick here
EarthWindandFire wrote:Any update since your last post in March on how well the system has been working for you Dick?
Yanche wrote:The schematic was likely lifted from one in John Sieganthaler's book
Yanche wrote:No. The schematic was likely lifted from one in John Sieganthaler's book and part of a bigger primary secondary piping system. Sieganthaler almost always has the pumps on multiboiler schematics on the return side. He doesn't explain why. But I have a very practical reason why when one of the boilers is a coal boiler. Since coal boilers can not be turned off completely they can continue raise the boiler water temperature to the PRV (pressure relief valve) set point. This can occur during mild conditions and there is no demand for heat. When the PRV opens you lose water. In many installations the pumping away location (supply tapping) will have the pump higher than the RVP. This means the lost water may, might or will drain out of the pump. If water drains out of the impeller side of the pump the next call for heat can not be satisfied because there is no water to pump. Yes, the automatic refill might put water back into the system but many times there will be an air pocket. This air can only be automatically removed if the pump can pump. On the other hand if the pump is on the return it is likely low on the boiler, lower than the PRV. When the PRV releases the water in the boiler will keep the pump impeller wet. A much better design.
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