Extraction problem.......

[Magwat]

I left frames in a makeshift warming cabinet overnight. It consisted of a diy ecostat poultry incubator heating cable at the base of a polystyrene brood box with a poly lid. I forget the temperature it was set at but definitely not more than 30. I woke in the morning to collapsed combs and a pool of honey on the worktop The worktop was clean(ish) so I scraped about 6lbs into a container and it got used for cooking. So.. be very cautious.

 

[maddydog]

I left frames in a makeshift warming cabinet overnight. It consisted of a diy ecostat poultry incubator heating cable at the base of a polystyrene brood box with a poly lid. I forget the temperature it was set at but definitely not more than 30. I woke in the morning to collapsed combs and a pool of honey on the worktop The worktop was clean(ish) so I scraped about 6lbs into a container and it got used for cooking. So.. be very cautious.

In my experience this down to no airflow within the box.
Fan, heat source at the bottom, and temp probe at the top works for me.