In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
On a conventional Heat pump thermostat,say a T8411R,when does the second stage kick in? After a 3 or 4 degree drop in temp?I've read all the manuals and can't find the sequence of operation for the auxillary heat stage.I'm installing a hot water unit heater to back-up an existing in-floor radiant job, and i want to let the radiant handle the job when it can.Then bring on the unit heater when it's colder than normal outside (like it is right now!)Will this thermostat work for this or is there something better? Of course, this is a low budget job.The customer does'nt want to get to fancy