The Butler Multi with its patented “Lion” Wetback system is a very efficient Hot Water Heater that will supply the average household with all its hot water requirements, along with room heating. In addition, the cooking surface situated beneath the removable grill is perfect for winter soups and stews or just to keep the kettle boiling. The Butler Multi has an estimated 6kw Hot Water Output & 8kw Heat Output (depending on fuel type used).