An hvac contractor has taken a look at the house and has a recommendation inverter explains in this q a post.
Ductless air conditioning condenser in the attic.
As it pulls heat from it in winter the temperature will drop.
Your condenser works in conjunction with the indoor units or the mini splits themselves.
One will cool the master bedroom the other will cool the two bedrooms where inverter s children sleep.
The condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house.
The condenser which is also known as the compressor is an outdoor unit.
Put it in an attic full of blown insulation and you re forcing.
The smaller that room the more temperature change you ll get.
As it dumps heat into that air in summer the temperature in the room will rise.
To explain why let s talk a bit about what the mini split condenser is and how it works.
Putting your ductless mini split condenser in your attic is not recommended.
If you put the condenser in a garage attic as shown above or other space it s now connected to a finite mass of air.