Thanks for all of the replies. I think I found a good solution. I have wifi in the hangar so I bought 2 Smart WIFI plugs. $10 each. Very simple install. I set up a schedule to have them on 6 am to noon. Planes generally get use starting at 8. I tested bypassing the schedule from home and it worked perfectly. I am able to control from home when needed. This time of year for the CT's, I like to keep the heater and battery charger on, but they really only need to be on for the first flights of the day. For the less used planes I can turn them on as needed when I get notified of a scheduled flight.
I don't heat the hangar, only the office because of the expense. I have two large radiant heaters in the hangar and will be able to use one of these plugs on each of those and that will allow me to preheat the hangar when needed.
I don't know if this will save money but it is cool to be able to control these sort of thing from home.