Beko Fridge designed to work at temperatures above 10c
coir brick ,lighter than soil. add water to expand
Polystyrene box for hibernation ( not fridge)
I use an 80 watt linear halogen bulb (r7 78mm) as it is inside a small kennel. The lamps usually come with a 120 watt bulb which would be ok for a cold frame or outside. bought on ebay.
about £5 for 5kg from equestrian suppliers, but more expensive in smaller quantities. also called calcium carbonate.
Cuttlefish from petshop or bargain shop, can also be found on the beach if you're lucky.