Cooling down or heating up

I have a small mini split cooling system component in my study room so that I can stay nice plus cool each night when I sleep without chilly my flatmate out in the process

The weather is in flux right now in our town but it looks like it will be a high of 75F each day till the start of June. The weather slowly warms up here in the summertime plus by the end of June it is pretty much getting up to near the 85F mark. The entirely tepid months here are July plus November where the temps each day sit around the 95F spot for most of those two months, and but when September hits it entirely cools down quickly plus by the end of the month it can get downright cold. Heating is needed but not until December when it starts cooling down into the chilly zone, requiring a nice space boiler in the office each day to keep the hands warm, for now my associate and I get to appreciate low power bills for a while plus after that I will have to start running the air to keep the flat comfy for us while in the daytime. I have a small mini split cooling system component in my study room so that I can stay nice plus cool each night when I sleep without chilly my flatmate out in the process. I purchased it for $230 plus I bet it will pay for itself over a couple of summers because it saves me from having to run the main component all night just to cool down my little study room. My nice friend and I don’t have a zone control Heating plus A/C system so having this little cooling system component entirely saves money with the power each month while in the warmer months of the year.

HVAC duct