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One thermostat for multiple systems
I'm looking for the best control solution for my house. I currently have a very old boiler (~1964) with a Lux TX1500 digital programmable thermostat with heat/cool modes and 3 zones (not seperately controlled). In the next year or so I'm contemplating upgrading the boiler to a Navien Combi 240 boiler and sometime after that install a 3 zone heat pump.
I am curious what you would suggest for thermostat controls. When I install all this I would prefer not to have a ton of thermostats all around the house and just have 3 stats for all 3 zones. I would prefer a thermostat that could control the boiler and heat pump in one.
Additionally, is there any option for a smart thermostat to calculate whether it's cheaper to run the heat pump at a given electrical price vs running the boiler at a given LP price, or am I just overthinking this whole thing?
I live in northern indiana where it can get -20F and the heat pump wouldn't be able to keep up by itself.
Thanks for any help!