Oil Boiler return temps. Condensate temps.

[Fly100]

Can anyone confirm the Condensate Temp for an oil boiler please. I see gas is 55c and a lot of pages seem to mention oil is the same, but there are the odd pages that quote 47c as the condensate temp.. The manual makes no reference to it nor does the manufacturers website.

Of course I understand the lower the return temps the better.

 

Thanks as ever.

 

Fly

[Temp]

Grant say the return temperature should be less than 55C (and over 40C).

 

https://www.grantuk.com/media/1294/vortex-outdoor-modules-installation-and-servicing-manual-doc52-rev00-october-2004.pdf

 

To ensure maximum efficiency, the boiler return temperature should be 55° C or less, this will enable the latent heat to be condensed out of the flue gases.

[Fly100]

Thank you.