Ducted minisplit power consumption and operation
I am currently designing a home in the 4C climate. We’re attempting to reduce our projected power consumption as we’re considering having the home off grid as it’s far away from the closest power line. I calculated that the home would need approximately 12,000 BTUs to heat the home (2100 sq feet, R35 walls, limited triple pane windows, air sealing, etc).
Can someone that is familiar with ducted mini-splits give me some insight into how they work and how much power they consume (during cooling, heating, and standby)?
Also, I had read that they the air handler typically runs continuously, similar to an HRV system. If so, it seems like the mini-splits could end up consuming quite a bit of power. Is this true, and if so, is there a method to turn this off so it operates more like a typical A/C system?
(I recently determined that a Zehnder HRV would require ~1.6 kWh per 24 hour period operating continuously at a medium speed. I was hoping to keep our total consumption at or below 8 kWh!)