Electric boiler and cylinder heat pack, designed to reduce installation time and eliminate unnecessary external plumbing and pipe work. Pack includes a 12kW Slim Jim electric boiler and 150Ltr indirect stainless steel cylinder, complete with a boiler pack designed for heating and domestic hot water installations. Max. Central Heating Output: 12kW Stainless Steel Heat Exchanger 150Ltr Stainless Steel Tank Compatible with Solar PV Panels 1 Year Guarantee 40,945BTU Fast Re-Heat & Recovery 50mm Insulation for High Energy Efficiency Overheat Cut-Out Protection Max. Central Heating Output: 12kW Stainless Steel Heat Exchanger 150Ltr Stainless Steel Tank Compatible with Solar PV Panels 1 Year Guarantee 40,945BTU Fast Re-Heat & Recovery 50mm Insulation for High Energy Efficiency Overheat Cut-Out Protection