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Condensing Boiler - NO Condensate but BIG plume
QUESTION:I have a natural gas condensing boiler (Ideal Minimiser SE80). I have the boiler thermostat set near to its minimum to encourage
condensing mode. The boiler produces a realy big plume of water vapour but I have never
noticed any water coming out of the condensate drain pipe. There is, however, a constant drip from the tip of the flue. Is this normal?
ANSWER: I don't know about your specific model. However, many condensing boilers
have a syphonic trap for the condensate. Rather than coming out as drips,
about a litre or so will be released in one big hit. This helps prevent
freezing of the pipes, as the quantity tepid water won't freeze on contact
like the drips will. You might have a boiler with such a trap and might not
have been watching when this rather infrequent event happens.
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