This should be a no-brainer for you guys and it may be posted elsewhere here but I'd like the freshest information.
The HVAC guys who installed my HX and added another thermostat to control the fan for the boiler system did not know how to do this but I'm sure it can be done simply. We have the original thermostat that controls the propane furnace and another thermostat was added by these HVAC guys that only turns the furnace fan on when the house needs heat. To make this work I have to turn OFF the Propane thermostat and turn ON the Boiler thermostat to control the fan to blow thru the boiler HX in the existing ductwork.
So, our boiler is still struggling to keep up with demand. Much better than before, but we have about 1 month left in our heating season so I'm going ahead with the unseasoned wood and will be doing efficiency upgrades off-season. The problem is the boiler rarely goes above our new pump on temp 170F and as soon as the water starts circulating water temps creep down as a function of how cold it is outside. I'm gonna tackle boiler efficiency, but the control problem is with the house calling for heat all the time the boiler thermostat essentally has the fan on all the time and when the boiler controller turns off circulation, I'm blowing cold air. Seems I need a sensor linked with a thermostat in the house that turns ON the fan only IF the house calls for heat AND we have boiler water circulating. Thanks, I know this an easy one for you guys here.
The HVAC guys who installed my HX and added another thermostat to control the fan for the boiler system did not know how to do this but I'm sure it can be done simply. We have the original thermostat that controls the propane furnace and another thermostat was added by these HVAC guys that only turns the furnace fan on when the house needs heat. To make this work I have to turn OFF the Propane thermostat and turn ON the Boiler thermostat to control the fan to blow thru the boiler HX in the existing ductwork.
So, our boiler is still struggling to keep up with demand. Much better than before, but we have about 1 month left in our heating season so I'm going ahead with the unseasoned wood and will be doing efficiency upgrades off-season. The problem is the boiler rarely goes above our new pump on temp 170F and as soon as the water starts circulating water temps creep down as a function of how cold it is outside. I'm gonna tackle boiler efficiency, but the control problem is with the house calling for heat all the time the boiler thermostat essentally has the fan on all the time and when the boiler controller turns off circulation, I'm blowing cold air. Seems I need a sensor linked with a thermostat in the house that turns ON the fan only IF the house calls for heat AND we have boiler water circulating. Thanks, I know this an easy one for you guys here.