It is funny how different climates in the US can affect a person’s needs with their heating & cooling system. I live in a region where it stays moderate most of the year. When I first moved here when I looked for a venue to live hardly any venue even provided a heater. Most apartments only provided a cooling system, because the heating system is rarely, if ever, needed. I used to live in a region of the country where there were several very distinct seasons. If you did not have a cooling system in the summer time then you were going to overheat actually hastily & be dripping sweat all summer time long. In the Winter if you didn’t have a fine gas furnace you were going to freeze because there was a fine opportunity the uneven temperatures were freezing or below freezing. There are other regions of the country where you rarely need an a/c because it is so frosty all of the time. They have to run their gas furnace 8 weeks out of the year & even in the summertime the temperature is cool enough to not require a cooling system. Heating & Air Conditioning businesses & providers have to be actually aware of the type of climate they are dealing with so they have the right systems for sale & the right professionals. You wouldn’t want an Heating & Air Conditioning professional who was an expert with cooling systems working in an section that rarely used their cooling units. You also would not want to be selling extravagant furnaces & mediocre cooling systems in a climate that rarely requires heaters.