[Avodah] Solar oven

[D Rubin via Avodah]

Date: Thu, 3 Mar 2016 21:48:24 +0200
From: Lisa Liel via Avodah <avodah at lists.aishdas.org>

> http://offgridquest.com/survival/go-sun-solar-cooker-brings-heats-to-550-

> Are there cases where you could use this on Shabbat?  I assume it's not 
> bishul d'Orayta, so would there be a lower bar for what would have to 
> happen to make it permissible?

Looks like proper toldoth chamoh bishul, so surely not de'oirayso.
It's maybe similar to the machloketh between R. OY and R. SZ about
dud shemesh..
So to work out how deRabonon it is, one would need to know the electrical
workings.. any idea how exactly it works?
looks interesting..