Adjusting chimney height

[zeromski]

Hi

I have a problem adjusting the height of the Generic_Models_Masonry_Chimney_Wall component in my Revit model.

I load the family and insert it then I edit the heigh using the Edit Type-Duplicate, however the chimney crown stays at the same height and just becomes thicker, see pictures below (I hope they appear in the message).

EDIT: I am working on Revit 2025

Before - Automatic height of 7300

After - Height adjusted to 5000

Has anyone experienced the same problem or knows of a solution I can try? I'm new to Revit so I don't know much about editing families.

[Tom_Kunsman]

can you post the family?

[zeromski]

I've attached the .rfa file.

It's from the UK Families pack in the Generic Models folder.

[alan.johnson7YLND · Accepted solution]

Its just the top part of the chimney that isn't locked to anything, so when you changed the 'Top of Masonry Height'

it appears as a bigger extrusion. As per your second image.

If you can edit the family and lock this to the Ref planes already there that will fix it. See image below

[zeromski]

Thanks, that makes sense.

I'll look into how to edit the family object and report back if the solution doesn't work, but I suspect it will.