How to turn on the fan, when humidifier starts?
We have a fairly vanilla thermostat, that controls heat (hot water) in winter and central AC in summer.
In addition, there is a humidifier to inject moisture into the AC ducts. The trouble is, humidifier has its own control, but, to have an effect, needs the fan running.
In summer the fan (in "Auto" position) starts together with the AC, but is not affected by humidifier's controls.
Is it possible to alter the existing wiring (both the humidistat and the thermostat are located next to each other) so that fan would kick-in automatically, when either the AC or the humidifier turn on?
Currently we have to keep the humidistat set to 0 most of the time and turn both the fan and the humidifier on and off together manually (by setting humidistat to the desired humidity and the fan -- to "On"). Obviously, this is suboptimal... Leaving the fan running at all times in winter is a little too noisy.
Thanks for advice!