When I had our current oil furnace installed, the Heating plus Air Conditioning professional asked if I wanted our central a/c unit installed. I told him I didn’t want central a/c. I was quite happy with our window a/cs. He looked at me love I was ridiculous plus said that central a/c was more convenient plus it offered better cooling. I would not argue with him, even though I also would not allow him to talk me into buying central a/c. I liked our window a/c units. I didn’t have control units fastened to a smart control unit where I could turn the A/C units off plus on at will, even though I didn’t have the A/C units turned on unless someone was in the room. It took little time to cool a room plus I couldn’t see wasting energy keeping it running all the time. All the window a/c units, however the one in the rooms we were using, were turned off. I told the Heating plus Air Conditioning professional that our condo was always comfortable plus it cost me less than $20 a month to cool the house… My brother had central a/c, his bill went up almost $100 a month during the summer time hours. He tried to tell me that was an exception, even though I had already tuned him out. All I wanted was to have the current oil furnace installed, plus if he couldn’t do that for me, I was going to call another Heating plus Air Conditioning supplier who would give me a oil furnace without a central a/c unit. He changed his tactics plus installed the current oil furnace.