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Air to Water

Pros :- More efficient than air to air units, suitable for heating swimming pools, hydronic floor slabs, domestic hot water systems, and room heating using radiators. Cons :- More expensive than air to air units. Efficiency :- Between 2.8:1 and 4.7:1; ie. 2.8kW of heat output requires 1.0kW of electricity input, depending on ambient air temperatures.

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Last Modified - 19th February, 2003