✨ Mia’s Simulacrum 🏳️‍⚧️✨3d ago

I have to say it is really infuriating that all the new buildings with underfloor heating that have been build in the last 20 years lack ACs or even radiators.

Like you have this massive thermal battery just sitting there, there are pipes in this battery and you can only use it for heating half the year.

No body had the intellect to connect these things to a radiator on the roof so you can use the cold nights to lower the temp of these thermal batteries... the additional costs are minimal and you could just add a AC to all of this.

Like .... running a AC at night to bring down the house temp makes also much more sense than trying to mitigate the heat in the middle of a day with 40C.

The German laws already require laughable thick walls that are tons over tons of thermal capacity that just ... sit there and do nothing.

Absolutely flabbergasted...

Put fucking pipes into the walls!
It is not that difficult and expensive!

In fact it is much much cheaper that way if you calculate in a few generations like German houses are supposed and regulated to be build.

#climatechange #housing #heat #passivhaus #cooling #building #AC

Show threaddr2chase
@m One problem with bulk cooling like that is humidity, condensation, and mold. I grew up in Florida, am now 1/3 owner of that home, and we must run the A/C at no higher than 27C to prevent condensation and mold even if nobody is there. There are thermostats with a humidity control option, and we plan to upgrade to that, to save energy. Pre-A/C, homes in FL were built with ample airflow to prevent this, otherwise there's mold/mildew on everything.
Jun 24 at 2:53pmWeb
Show thread✨ Mia’s Simulacrum 🏳️‍⚧️✨3d ago

@dr2chase

I would not think that this is a problem in that case because the temps would not go as low as the dew point.

With ACs that have output air of 5C this is something different, the thing they are blowing too will attract moisture.

Show threaddr2chase3d ago

@m what happens w/ A/C is that the output air is dehumidified, there is condensation within the A/C and a system for removing that water, so the cooling wind is also a dry wind.

AND warmer air will hold more moisture; you will experience higher dew points.

Humidity/condensation control is "a thing"; porous insulation requires vapor barriers, to prevent diffusion through insulation, and you have to think about where (in New England, barrier on the inside, in FL, barrier on the outside).