Thanks to all of you for your help (particularly for taking your time to post all of this reading information.)
I have begun to install a Biomass 40 with a 500 gallon storage system. My boiler circulator will be set to run (planned) by the boiler only to the storage tank only. My hope is to run wide open until the return water gets to a point which will force shut off of the boiler.
My zone valves and house heat circulator will only when the call for heat is sent. This should be a fairly simple move from the existing gas boiler to the new circulator (I hope).
My real quandry is how to wire the gas boiler for an emergency-only back-up, like if I was in a car accident and couldn't get home to fill it up. I think I would like to put an aquastat on the tank to sense a low temperature, thus turning on the gas boiler to heat the water in the tank to a certain point, then sends the signal to turn the gas boiler off. The house may or may not be calling for heat at that moment.
Any advice for a newbie-getting-not-quite-as-new boiler installer
I have begun to install a Biomass 40 with a 500 gallon storage system. My boiler circulator will be set to run (planned) by the boiler only to the storage tank only. My hope is to run wide open until the return water gets to a point which will force shut off of the boiler.
My zone valves and house heat circulator will only when the call for heat is sent. This should be a fairly simple move from the existing gas boiler to the new circulator (I hope).
My real quandry is how to wire the gas boiler for an emergency-only back-up, like if I was in a car accident and couldn't get home to fill it up. I think I would like to put an aquastat on the tank to sense a low temperature, thus turning on the gas boiler to heat the water in the tank to a certain point, then sends the signal to turn the gas boiler off. The house may or may not be calling for heat at that moment.
Any advice for a newbie-getting-not-quite-as-new boiler installer