What burner to use

Mike27

Need to know what oil burner is needed for a Weil Mcclain 68 A/B-568 boiler.

Thanks

STEVEusaPA

AFG F6 head, AF44YB air tube, 1.50 x 80A
https://www.beckettcorp.com/wordpress/wp-content/uploads/2015/12/6711-OEM-Residential-Oil-Spec-Guide.pdf
You can also use a Carlin 99FRD
Or a Riello F5
That's a pretty old boiler, what happened to the original burner?
I'd rather put the money towards a new boiler.
If I had to put a new burner on it, I would probably try the Riello.

HVACNUT

I'm with @STEVEusaPA , what happened to the other burner?
The 68 series was last made around 1993 before going to the Gold GO.
And a five section? That's a lot of boiler. Do you need that many BTU's?
I your going to stick with the 68, I'd also go with a Riello F5. But I wouldn't max fire it.

Steamhead

Beckett NX would work well in that boiler too. On the 68 series, the more static air pressure the burner can produce, the better. IIRC the NX and the Riello do this best.

STEVEusaPA

I keep forgetting about the NX. Do you like it over the Riello Frank?
I didn't see it in the spec book, so if it were me, I wouldn't experiment without contacting Beckett.

Mike27

Need that many btu's. Old Beckett model AFG, no. AF- 953506. Won't stay running, Oil tech said something about plastic sleeve stopping motor? Thank you for your help.

HVACNUT

The burner coupling?
That won't keep the burner motor from running. A bad motor or seized fuel pump will.

lchmb

I'd fix the old burner and save money towards a new system..