I'm new to Geo, we have been using it for around 6 months. I have a question about the best practices of using a programmable thermostat. But here are the specs of the house so you'll have enough background information to answer the question. I have a 3100 sq foot 2 story house that was finished in July 2019. It's insulated fairly well, above builder grade spec, but not spray foamed. We have a lot of windows, something like 30, but they are new, decent quality windows. We have a 2 zone geothermal HVAC system. Upstairs we have a 2 ton Water furnace 5 series unit, and downstairs we have a 3 ton Water furnace 5 series unit (the footprint of our first floor is larger than the 2nd floor, the 1st floor unit also heats and cools the unfinished basement). Both units have a 95% efficient propane backup. We have a horizontal ground loop with 6 total lines that loop something like 400 feet, about 6-8 feet beneath the ground. Up until last week, we have been maintaining constant temperatures on both floors because we've had guests staying with us on the 1st floor and someone was home all day. The propane heat never gets used running the system this way. Now we are back to our normal routine with my wife and I both working all day so no one is home from 8-5. Also, no one is sleeping on the first floor. So I've programmed the 1st floor thermostat down to 66 at night, and 66 during the day when we're gone. It just rises to 70 degrees for wake up time and evening time. What's interesting is the furnace engages the propane auxiliary heat for the recovery. So until the temp gets back up to 70, the propane furnace is running those 2 times a day. It takes about a half hour depending out outside temps. My question is... Now that we are theoretically heating more efficiently with the geothermal system, should we just leave the temperature set to 70 all day long so the propane backup never runs? Or is there some way to disengage the propane backup for normal temperature recovery? I don't get enough info from our system to tell me how much energy it's using during the night to keep up the temp. So it's hard to calculate it. Is there some kind of software I can use with the water furnace system that would give me the hour by hour breakdown of the usage?