Thermostat Recommendations

I bought and installed an Ecobee3. It’s been working great with my automation with one major flaw that has nothing to do with SmartThings. When set to away mode, it kicks on my ventilator and runs it until the mode changes even when the ventilator is set to run 0/min an hour. I’ve got a ticket open with Ecobee but I am not hopeful as some of the research I’ve done shows this as a bug when using a ventilator.

So to my question… any recommendations for thermostat I can control through SmartThings that properly handles e ventilator? I was looking at the Honeywell T6 but it doesn’t appear to be supported.