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SE and HE Gas Boiler Flue Gas Temperatures

John.G · 2021-03-03 11:00:29

Could someone please give me typical measured values for the above (non condensing & condensing) taken from their flue gas analyzers. Friend of mine has installed a HE one to replace his old SE boiler and is wondering as to why the condensate flow is so low, hence my request for the above.

03-03-2021 11:00am

#1

John.G

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Could someone please give me typical measured values for the above (non condensing & condensing) taken from their flue gas analyzers.
Friend of mine has installed a HE one to replace his old SE boiler and is wondering as to why the condensate flow is so low, hence my request for the above.

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#2 03-03-2021 7:27pm

DGOBS

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HE 50-80º
SE 120º + (dependant on age of appliance)

These would be guid figures only, should have more accurate in MIs for his specific boiler
First thing to look at is the flue correctly inclined.

What his flow/return temp?

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#3 03-03-2021 10:28pm

John.G

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Flow is 65C, return 55C, so probably not condensing?.

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