I'm new to this, but trying to learn as much as I can... I had a Climate Master TES038 installed about 6 months ago, and am trying to find the optimal thermostat settings on my Ecobee. I'm a bit concerned that even in the mid 30s it seems to require VERY long runtimes (often in Stage 2) to maintain the temperature. Here's a graph of the runtimes today, with the top being Stage 1, lighter orange Stage 2, and red is a gas furnace. Is ok for the HP to be running for that long? Does this look like its operating properly? I expected more frequent, but shorter cycles mostly in Stage 1 (like what you see overnight). I'm concerned it may not hold up on colder days. P.S. The installer recommended a ClimateMaster thermostat "because its made to work with it", and offered to install it for free next week. I would prefer the Ecobee because I like being able to monitor and tweak how its operating, but may go for it if things aren't working optimally.