Rayburn 460K Flue temperatures?

[William86]

Greetings!

Having just rebuilt a Rayburn 460k with (ecoflam burners) due to the dreaded warped oven protection plate, I am trying to work out if the test point temperature readings for the Rayburn are, ‘what you’d expect’

Flue ways on cooker side & boiler side, including boiler baffles all now clean as a whistle. New fibre board fitted to oven burner chamber & new rope seals/gaskets all round. Fuel filters cleaned, fuel hoses replaced, nozzles replaced, pump pressure 10bar.

Both systems both work like a dream with co2 reading 11%, CO 6ppm & o2 around 5%.

My concern is that whilst the boiler test point shows a flue temp of around 200 deg C. The cooker side (test point on hot plate) reads around 500-550 deg C. Does anyone know if this is normal on an ecoflam Rayburn cooker side?

 

[exedon2]

From memory Rayburn never gave a temperature reading just co2 11%/11,5% and a smoke reading not exceeding 2
The cooker side was known to run very hot often destroying blasttubes if settings were even slightly out!

 

[William86]

Yeah I virtually rebuilt the Rayburn & don’t want it to rip itself to pieces again. With the settings that Rayburn provide it runs incredibly hot & it’s asking for it to melt itself.

I had some advice from another source to reduce the pump pressure to 110psi & replace the cooker 0.40 nozzle with a 0.35 nozzle & the flue temps will be a lot cooler but won’t really notice a difference in performance. I’m happy that it may run for longer & take slightly longer to get to temp if it doesn’t kill itself. They are bloody expensive…. I’ve ordered a nozzle & as long as the analyser readings are happy then I’ll keep an eye on it. Would be interesting to see if others have had similar issues/experiences