The standard uniSTOR heat pump cylinder is available in 150, 200, 250 and 300 litres. For use with the 5,8,11 kW aroTHERM heat pump. For use with 5 kw flexoTHERM Ground Heat Pump. Each cylinder uses the latest thermal injected insulation for the lowest heat losses in its class, with as little as 1kW per 24 hours. The strategically positioned large diameter, smooth coil provides optimum hot water performance and automatically de-scales to ensure long term efficient hot water generation. Key features and benefits - Heat loss from as low as 1kW/24 hours Reduce energy bills for end users - Thermal injected polyurethane insulation combined with vacuum panels - Superior insulation and efficiency - Slim design Fits into compact spaces allowing for flexible siting - 28mm three-way valve supplied Reduced cost of installation guarantee - Expansion vessel and sensor included Complete system solution offering Factory fitted immersion Emergency backup in case of main heat source failure - Adjustable feet Makes on-site installation easier Manufacturer Part Number: 20235271 Warranty: 2 Years Parts/ 25 Years shell