I have a #coldframe made of perspex and wood which due to its location gets a lot of sun in the morning, I've added some temperature sensors and it can get temps of over 40C at times, this is only for 30-60mins and then it gets a bit of shade and cools down.

I'd like to try and take advantage of this burst of heat but spread it during the day - so Mastodon friends - would adding some thermal mass help, perhaps a plastic bottle of water painted black?

What's nice is that I have sensors so should be able to monitor effectiveness!

#diy
#maker
#gardening
#greenhouse

@smallsolar Brick painted black would be better. Lower specific heat capacity than water. Interested to see the results, whatever you use!
@andy I've got some slate tiles which would fit in well, let's try that. Of course today is a cooler day so experiment will have to start tomorrow