Condensing Boilers

  Terry Brown 17:08 PM 09 Jan 12
Locked
Answered

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

  woodchip 18:48 PM 09 Jan 12

Heat being Dissipated

  woodchip 18:50 PM 09 Jan 12

PS From the Air that the boiler is using

  frybluff 19:36 PM 09 Jan 12
Answer

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%.

  Terry Brown 09:08 AM 10 Jan 12

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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