Hi,
It sounds like a good climate for a home with quite a bit of thermal mass. That is, you have large temperature swings, but they go both above and below a comfortable temperature. With a lot of thermal mass, the house inside temps won't swing through such big ranges.
In the summer, if the nights cool way down, you can ventilate at night to cool the house mass down, and if the house is built to minimize heat gain during the day, the nigh ventilation and mass may be all you need to keep the day temperatures comfortable. It will depend to some degree on humidity levels.
Using pex in the floor for cooling will be limited by not letting the floor get down to the dew point to avoid condensation.
Gary
|