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Condensing Boilers


Terry Brown
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On a condensing boiler(gas), apparently about 0.5 litre goes down the drain. Is that water from the household mains, from the atmosphere or from the gas?

Thanks for looking

Terry

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Terry Brown

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Thanks Woodchip & frybluff for your replies.

I was curious to know where the 'waste' water come from.

Now ticked (Frybluff)OK.

Terry

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woodchip

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Heat being Dissipated

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woodchip

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PS From the Air that the boiler is using

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frybluff

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Chemically, METHANE (gas) combines with OXYGEN in the air (combustion) to produce carbon dioxide and water. In a standard boiler, the water leaves the boiler, as steam, mixed with the carbon dioxide, wasting energy. In a condensing boiler, the steam is condensed into water, saving most of that energy. The water produced tends to be slightly acidic, so is not re-usable. The thermal efficiency of a standard boiler is usually between 65% and 75%, depending on its age and condition. A new condensing boiler is likely to acheive around 90%.

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