Hello! Near Pittsburgh, PA. I have a 3.6 ton Carrier GTX setup with two zones of forced air in a 2600 ft^2 two store house. Unit is controlled by a Honeywell HZ432 panel and two Honeywell zone motor gizmos. New construction, finished July 2016. Now that we've been in the house for 6+ months and I finally have some temp data (thanks to a Raspberry Pi & Domoticz setup) I am seeing some things I think may be concerning... My Delta T of EWT-LWT is very lowww. I only have about 12 hours of 'good' data, but I'm seeing maybe 2* at most and lots of negatives? Perhaps the negatives are because the system is off? Right now outside temps are cold, 35-50*, and my EWT is quite chilly! - I will change my filters tonight, just in case. Some basement drywall finishing may have clogged them quickly. - My Grundfos pump is set to a medium flow, do you think my flow is too high and hence heat isn't transferring well? Another oddity I have found is that the system wants to kick on and off more than I expected. I envisioned a long time run, low and slow with a geo system, however there are times where the system will kick on for 5-10 minutes to satisfy a zone, then kick off for 5-10 minutes and then back on for another short cycle. Is that normal? Doesn't sound super efficient.. -I had the well people out once to verify the loop and they indicated that they re-purged the close loop and it seemed fine. On a positive note, I do think my desuperheater is working well, as the in and out temps going into my buffer tank are in the 110-120 region, which seems great! Also, after a shower, the system seems to recover the heat pretty fast, despite dropping to 50* water during the shower. The delta T of the DSH system is also quite low, just a couple degrees, but it seems to be doing something overall, as I can't image the 110* water comes from thin air, (unless my finish tank is somehow sending it backwards?). If you notice the two big dips down to cold, that was two morning showers at 7:05AM and 730AM that brought in a flood of cold water. It does look like the temp recovered pretty decently! Any thoughts on how my system is running, and other things to test or monitor? Thanks!