How long do gas bottles last? I'm thinking this may be a better option than an electric boiler, and also more future proof, but if i have to fill the gas every time then it wouldnt be very economical.
I've got a small 6kg propane cylinder and I reckon I've had it burning for 9-10 hrs so far. Only four brews but it takes 30 mins to get t strike temp and then 90 mins for wort to reafh boil and stay there for an hour. Trick is to get two cylinders so if one runs out mid boil you can switch quickly