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How to operate boiler controls
I have an 80-year old house that was converted from steam to hot water. I am renovating the entire house and removed all existing piping (some as large as 6") and will replace with appropriately sized copper pipe set up in 3 zones. I will not use zone valves since I will have TRVs on each radiator, so the zones will just provide flexibility if work is needed and allow me to isolate sections of the house. I also removed some cast iron radiators and replaced with Myson Select radiators. The previous radiators were oversized and the Myson's saved on space.
I am going to install TRV's on all radiators and go without a thermostat. I also plan to run the circulator continuously. My question is how to set the temperatures on the boiler. I have an old Peerless that runs on natural gas. I don't have the numbers in front of me, but the output is in the 250k BTU range, but since I've insulated and installed new windows I surely don't need this big of a boiler anymore. I will replace in the future but want to at least get through this winter (I'm in Chicago).
Knowing that I will run the circulator continuously, will install TRV's on all radiators and will not have a main/room thermostat I am thinking of installing a triple aquastat, but I am not sure of the settings (I do have a bypass installed to cover when the TRVs begin to close).
Can someone please suggest the correct settings on the aquastat along with any other issues I need to worry about? I am also wondering if it would be worth it to install and outdoor reset.
Thanks - Tim