I wanted the Echo Chill to condition my Pinter at 5 deg for about a week. A Pinter contains 10 Pints of bier and required the setting to be set at Max. There is no temperature control as the Echo Chill works at 17 deg below ambient temperature. I helped it keep to 5 Deg by adding a frozen ice pack and swapping it daily. Before purchasing the Echo Chill I used the chat facility to ask if a Pinter would fit inside the Echo Chill 33. I was supplied with the internal measurements of the Echo Chill and the external measurements of the Pinter with a suggestion it should fit. I have to say it is a tight fit because of the valve. next time I am going to place blocks in the Echo Chill so the Pinter sits higher-up and not slightly wedged at the bottom. I have not used the warm function that heats the Echo Chill to 65 Deg. This is a cost affective cool box that can be electronically controlled to drop the ambient temperature by 17 Deg. There is no function to pre-select the temperature as it is not a fridge. The Echo Chill is designed to work indoors, or outdoors from a car cigarette lighter, or direct from the mains supply.