Recently I had my gas HVAC air balanced. The tech said (I think ) he turned up the burner or something in addition to increasing air flow to certain rooms) Soon after when we needed heat the heat would run for 30 minutes . In the past this NEVER happened. I don’t think it ever ran for more that 5 min. at a time. I thought it was short cycling. I called ecobee and they have me chasing my tail. I insulated the thermostat hole with plumbers putty in the wall because they thought it was a wall draft. Then they said it was the placement of the thermostat directly over the main return vent. I’m getting bounced between the HVAC company and Ecobee. Any idea what is going on. I turned off most of the eco + features including the heat/humidity option. Is this bad? Is my HVAC running too long and just how is it effecting the life of the system? My stats are showing 14 hours for runtime the month oc October and this is definitely off. Some of that time was a result of the system being on while they were balancing things. In Mass and I’m a dummy in understanding the graphs etc . Thanks