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What is the difference between a direct and an indirect system?

April 26, 2017indirect system

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What is the difference between a direct and an indirect system?

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A direct system is one where the tap water actually mixes with water in the radiators. An indirect system separates the tap water from heating system water used to heat the radiators. The Radiator Company radiators must only be fitted to an indirect system. We do offer a choice of stainless steel towel rails however that are suitable for either system.

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A direct system is one where the tap water actually mixes with the water in the radiators. An indirect system separates the tap water from the radiator water, and can also be called a “closed” system. PURMO radiators can only be fitted to an indirect system.

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A direct system is one where the tap water actually mixes with the water in the radiators. An indirect system separates the tap water from the radiator water. Kermi radiators must only be fitted to an indirect system.