Originally Posted by marcopolo
Do you think it's feasible to do a build like those shown, but with a full size fridge ? One that could house a 14gal conical ?
Sure, why not? But at that size, you are back to what the cost of building materials is versus another way to maintain temp.
In the case of a 14 gallon conical, you might be able to rig a propylene glycol chilling system for the price of the plywood/insulation to make a refrigerator sized ferm. chamber.