Sand battery/heater

[Andy_con]

Pretty interesting stuff, been reading a few articles and watching a few vids.

Am now wondering if I can attach a sand battery/heater to the side of my wood burner in the workshop to capture more heat. The wood buner/workshop obviously cools down over night and it's freezing the next morning when I go in there.

 

[-Jamie-]

Can you not just warm the workshop up with a laser?

 

[Andy_con]

Can you not just warm the workshop up with a laser?

A big old gas lazer yes, but that needs 3phase and many amps.

A sand battery seems way cheaper 😉