Air-to-Air Heat Exchangers for Healthier Energy-Efficient Homes

Re:Air-to-Air Heat Exchangers for Healthier Energy-Efficient... by PaulDavisThe1st on Saturday February 04, 2023 @02:05PM (#34657081)

> If you are upgrading the insulation from the inside you'll have whatever is the inner wall out anyway

In Philadelphia in 1996, I had a company blow in insulation to my wood-framed, plaster+wood-lathe covered cavity walls without removing the inner walls. They created a series of 4"/10cm holes at the top of each bay and blew the insulation in that way.

ps. I later found out that this is a terrible idea for vapor control reasons.

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Re:Air-to-Air Heat Exchangers for Healthier Energy-Efficient... by Freak_NL on Saturday February 04, 2023 @02:16PM (#34657193)

Yeah, that's basically why just putting up new walls is the long term solution. And as a bonus you can put in some sweet CAT6 cabling and enough electrical sockets while you're at it. :)

Another benefit: when you take out the inner walls in an old house, you are going to find layers and layers of… stuff. Like 2cm of styrofoam (insulation in a nineties way) and a new layer of drywall on top of whatever chipboard/grout/newspapers where put in in a distant past (at least in my old house).

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Re:Air-to-Air Heat Exchangers for Healthier Energy-Efficient... by germinalphrase on Saturday February 04, 2023 @02:18PM (#34657206)

Massive project though.

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