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A common form of central heating, like burning fossils kind that delivers hot water over insulated pipes to each building, is more efficient in pretty much ever
by jk700 6y ago
A common form of central heating, like burning fossils kind that delivers hot water over insulated pipes to each building, is more efficient in pretty much every way and is cheap to add during building construction than doing it individually. But it's not the case with a "central AC", it's less efficient, more expensive to add during building construction and operating costs are no better. Just think about it, you can't just deliver cold over a pipe and rely on air convection, like with heat, you need to literally move cold air into each room and make it individually adjustable. It's a ridiculously inefficient complicated expensive system requiring extra space and with installation costs higher than that of all AC units individually installed.
- shajznnckfke 6y agoCould you have a split AC system with a big centralized compressor?
- sokoloff 6y agoYou could, but chilled water circulation is the more typical heat transfer medium in central, building-wide units. Water can carry a lot of heat, is cheap and readily available, non-polluting, non-toxic, easy to pump, easy to plumb, and liquid at temps convenient for heating and cooling.
- asdfasgasdgasdg 6y agoThe first apartment building I lived in in NY had this. The only downside was that if the board put off maintenance so long that one summer the cooling towers were busted, then they waited until may to start the project to replace them, then an early heat wave came, it could be darn uncomfortable for a week or two. (That did indeed happen, just like I told it.)