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Old 03-28-18, 01:01 PM   #3
bpatton
Lurking Renovator
 
Join Date: Oct 2017
Location: Lubbock, Tx
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Definitely go with inverter systems, the price premium is worth it in efficiency. I have an older Carrier single speed 9k installed and wish I would have gone with an inverter. Surplus city liquidators sometimes has good deals on minisplits so thats one avenue to get cheap equipment.
As for brands, most people say the Daikin and Mitsubishi are the cream of the crop when it comes to mini splits. I've had quite a bit of experience with the Carrier units and they are pretty reliable in a light commercial environment.
If you want to play around with manual J a good website to go to is coolcalc.com It can help you fine tune your calculations and is completely free
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