Flange joint for flue?

CLamb

Is there the equivalent of a flange joint for a steam boiler flue pipe? I have to wrestle with the flue pipe slip joints each time I want to remove the top of my boiler fire box in order to clean it and I'm hoping for something easier to work with.

Mad Dog_2

No...But u could have one made by a duct shop.  Mad dog

Big Ed_4

What about a stove pipe coupling ? It joins two female vent pipes like a clamp ..

Mad Dog_2

That should be fine but I would use High temp RV red silicone on the joints  mad dog

pecmsg

CLamb said:

Is there the equivalent of a flange joint for a steam boiler flue pipe? I have to wrestle with the flue pipe slip joints each time I want to remove the top of my boiler fire box in order to clean it and I'm hoping for something easier to work with.

Once a year taking apart?

dko

If your issue is caused by a straight length that is cumbersome, cut out a section and replace it with an adjustable 90 elbow but straightened out. Then in future you can pop up the connection from the boiler and turn that elbow piece back into a 90 and move the rest of length out of the way.

Not sure if that made sense

CLamb

Mad Dog_2 said:

No...But u could have one made by a duct shop.  Mad dog

But would it be code?

Bob Harper

By slip joint, are you talking about something like this? https://www.amazon.com/Rhino-Rigid-Stainless-Telescoping-Chimney/dp/B09SGQHKLY/ref=sr_1_6?crid=1PLT3OUUAVJ5K&keywords=316l+rigid+liner&qid=1678925516&s=hi&sprefix=316l+rigid+liner,tools,131&sr=1-6-catcorr

Alternatively, if its CAT I gas or oil you could use this: https://www.amazon.com/Simpson-Dura-Vent-8647-Connectr-Telescap/dp/B000K7BBG0/ref=sr_1_1_sspa?crid=HLNJO0BLULDE&keywords=dvl+6"+pipe&qid=1678925657&s=hi&sprefix=dvl+6+pip,tools,253&sr=1-1-spons&psc=1&smid=A2HCHIE6U0W1ZN&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExTEc0UUVNRFRISEZKJmVuY3J5cHRlZElkPUEwNDU5NDAzSEZZNFRMQkpKWDlXJmVuY3J5cHRlZEFkSWQ9QTA1MjU1NzAyM1FKUzREM0ZCMTdJJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

It's listed to UL 641 so its approved for CAT I gas or oil. It's type L vent. Telescopes smoothly. You can get it unpainted from the mfr. Dealer prices much cheaper than Ammyzone.
HTH

MikeAmann

I agree with the stove pipe coupling. Remove the screws and slide along one of the sections and you are now disconnected. Seal with the foil tape. It doesn't get any easier.

EBEBRATT-Ed

you can easily make one it's done all the time. see my drawing attached. drawing is crude but sheet meatal guys make these all the time. the name for these escapes me at the moment................AH...... DRAW BAND! I just remembered!!!!!

Mad Dog_2

Lamb.  Things I do usually EXCEED code, which is a minimum Standard. If I've ever been  accused of anything, its going overboard..overkill. "Code"  gets thrown around loosely and is all too often used as a weapon of language.  I made many alterations to systems and equipment over the years, usually only when you're trying to address and fix a complicated problem that no one has the answer to.  The Engineers, the "experts' , the reps. Have no answers and The HO is counting on YOU to put this to bed.  Codes and laws are bare minimums that are a guide for the masses of  society to stay in their lane and stay out of trouble.  Sometimes, you've got to be creative, Flex the rules 💪..Et cetera. It all works out in the end and I can sleep 💤 😴 well on it  peace..mad 🐕 dog

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