Quote:
Originally Posted by REXC
Now this thread has been revived, we are building a new house and have negotiated for a 12.5kw Fujitsu ducted system to be installed with the house.
The unit will need to cool around 260sm, I have asked for a price to upgrade to a 15kw unit however the builder insists this isn't required.
What sort of kw are you guys running and what size area is it cooling?
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The 12.5 should be ok for that size house ( same as my house ) we originally had a 15kw single phase fujitsu and it was pretty strong. We had it replaced due to hail/storm damage and ended up with a 15kw three phase and it is too powerful. You are better off with a system that is working to hold temp rather than shutting off all the time because it overshoots the setpoint, which is what ours does. That's how it was explained to me by the aircon shop anyhow.
The only other advice I would suggest is zone all your bedrooms separately, I ended up putting another one in myself afterwards as two of the kids rooms were joined and it was a pain in the arse and more expensive to run.