Sizing a Burner

[Matt Stevens 1Participant @mattstevens1]

[Matt Stevens 1Participant @mattstevens1]

So my boiler is close to being finished! See pic below…

I would like to get a gas burner setup for this. Whilst the boiler is designed for coal, I can't help but feel gas will be so much more controllable and cleaner.

Having looked at the market, there isn't so many round burners available with the biggest I can find being 2& 5/8" diameter. Getting that and the jets, piping, canister valve etc is not the cheapest setup and so I want to get it right. The trouble is, I have no idea how much heat I need and if this is going to be plenty, just enough or not enough at all!

I will be running Stuart Models (Biggest to date is a twin Victoria, but I can see doing a major beam in the future) and would like to think this boiler is sufficient for any of those at 6" diameter and 13" tall (plus chimney) with the inside of the firebox being around 4.75" diameter.

How do I calculate what I need? OR Can you give me confidence that what I am planning will be sufficient?

Link below to burner in question…Burner

[Keith HaleParticipant @keithhale68713]

Hi Matt

See personal message.

Keith

[Mike HurleyParticipant @mikehurley60381]

Just to say it looks a really nice piece of work Matt

regards, Mike

[noel shelleyParticipant @noelshelley55608]

I never quite got round to it but had intended to make one. VERY careful dismanteling of the burners from the old super ser gas room heaters will provide 3 bits of the ceramic this you use cut to size and sealed with air setting ceramic cement into the steel box be it round or any shape you want. You then provide a burner jet of a size that experiment will show to be right. I assume you know what a commercial unit looks like so you have a good guide. You have built a beautiful boiler — so making the burner should to you be simple ! PM me if you want to talk about the idea. Good luck Noel.

[Brian JohnParticipant @brianjohn93961]

Is there any reason you built a vertical rather than a horizontal boiler ? It does look nice.

[Matt Stevens 1Participant @mattstevens1]

Posted by Brian John on 03/10/2021 13:31:19:

Is there any reason you built a vertical rather than a horizontal boiler ? It does look nice.

That is what i had plans for

I assume there is little disadvantage….Other than identifying a suitable burner!

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