Hi, I am new to this forum and indeed new to the world of refrigeration in general, so please forgive my ignorance.

I have an old coal house; 4ft x 4ft square x 6ft high, brick built, flat concrete roof concrete floor, no windows, single wooden door, that I want to convert into a temporary cold store for storing pig and turkey carcasses whilst butchering before they go in the freezer or are sold. I believe I need to get the temperature down to about 4 degrees C.

Does anyone have any suggestions about how I might create a Heath Robinson system that won't cost the earth and can be made from easily available materials from the DIY store and so on?

Your help and suggestions would be most welcome.

Thanks,
Jeremy