The title says it all. I have a new two story house that only has a single HVAC unit with the thermostat downstairs. I've heard of the different ways I can try and fit the house with a second unit to work with the downstairs unit to keep it from running heat upstairs during the winter, but I cant quite figure out why two thermostats can't do this job.
Take the Nest, why can't/ can I, buy two nest units. Put one upstairs and one downstairs. I set the "house" to 70. If the upstairs unit tells the downstairs unit that its 70 it stops heating, even if downstairs isnt quite at the right level. Hell, I could even set temp ranges for upstairs and downstairs until I get it perfect.
I know these devices already communicate in v2 to help alert of home presense, this just seems like the next step as its a very common problem. 500 for two nest units is a lot cheaper then refitting the house :p
tl;dr Upstairs gets hotter in winter, why cant two thermostats working with the same unit fix this?