I've thought it would be neat to have an interior wall of water to absorb excess heat of the day and release it at night to stabilize temperature.
My favorite idea is an infrared light with tracking to follow people in a room, heating individual people rather than a whole mass of air.
The house temps dipped down to about 68F today, and I found my fingers weren't keeping warm. I'm still adapted to summer temperatures.
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Originally Posted by aardvarcus
My issue with the phase change material is that they tend to loose their effectiveness over time.
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Which materials lose their effectiveness? I mean, water never gets better or worse and converting between solid, liquid, and gas.