Thanks Nev,
When I had it in bits I found the 3 bolts holding the burner were loose. Tightened them, cleared the glow plug breather hole, cleaned the dust out and reinstalled it. The heater works perfectly now, no white smoke at all and it’s soooo quiet. Very easy to service.
With Graeme’s fuel pump silencing kit installed we can finally sleep with the heater on.
Now to wait for some cold weather.
Cheers
Stu