1. Easy and flexible installation 2. The output heat up to 4 times as the electric consumption 3. All weather design, no matter in rainy or cloudy days 4. Reliable defrosting technology 5. Less running cost and easy maintenance 6. Hot water tank with built-in heat exchanger 7. Comfort heating system with fully automatic, electronic control 8. Match electric water heater Operating temperatures: -7~43 dg c Out put water temperatures: 45~60dg c Heat value: 3535w Rate power: 890w Hot water offer: 76l/h Water storage: 200l Refrigerant: r417a/r134a or r22 available