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If you’re thinking of installing solar water heating it’s

If you’re thinking of installing solar water heating, it’s worth noting that many combi boilers are not compatible with this heating system or cannot use it so effectively. A boiler that has a loss of feed water and is permitted to boil dry can be extremely dangerous if feed water is then sent into the empty boiler, the small cascade of incoming water instantly boils on contact with the superheated metal shell and leads to a violent explosion that cannot be controlled even.

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