this post was submitted on 18 Apr 2024
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New York’s First Electric Skyscraper Promises Luxury With Lower Emissions | An apartment tower in downtown Brooklyn has ditched fossil fuel heating and appliances (www.bloomberg.com)
submitted 7 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] silence7@slrpnk.net 3 points 7 months ago (4 children)

Most electric heat pump hot water heaters have a slow-mode which uses the heat pump, and fills a large tank with hot water, and a fast-mode which uses a resistive heater when the tank runs out. I don't see why this situation is particularly different for larger buildings, except that they need a larger tank and an electrical supply which can deliver the needed wattage.

Cheapo landlord could of course install an undersized unit, as they can with any other key system.

[–] huginn@feddit.it 1 points 7 months ago (3 children)

Big buildings like this usually use a central boiler. I'd be shocked if they weren't.

[–] silence7@slrpnk.net 3 points 7 months ago* (last edited 7 months ago) (2 children)

It still amounts to "I'm heating up a big tank of water and supplying it to people on an as-needed basis." The article makes it clear that they're using several to supply the whole building:

Electric water boilers | These provide hot water for the building and are typically more energy efficient than gas boilers, which are common in New York City.

[–] huginn@feddit.it 1 points 7 months ago (1 children)

Fair enough. I guess there could be a time when they need resistive to augment that but I'd think with sufficient boiler capacity you could do only heat pump.

[–] silence7@slrpnk.net 1 points 7 months ago

You definitely can do only heat pump, but adding resistive backup is cheap if you're already putting in new wiring anyways. So people do.