Can I heat my house with a solar water heater?

In winter, when the need for heating is greatest, the sun provides the least amount of energy. However, the sun can contribute to the house heating. This usually occurs in combination with a solar boiler for domestic hot water. The proportion of the sun will be in classic older homes never more than 10 to 25% of the total heating needs. By Low Energy Houses and Passive Houses can be a correctly sized son boiler-combiysteem or cover up to 50% and more of the heating needs. 100% coverage in our climate is not possible and therefore continue to complement heating system necessary.

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