What is the best way to draught-proof a chimney? - TheGreenAge
Closing a fireplace - Step-by-step guide and video
Removing a fireplace and blocking up the opening – London Builders
What's the best way to block up our chimney during cold weather? | Energy bills | The Guardian
Fireplace Blocking Up - 1 of 2 - The Bedford Handyman
How to soundproof a chimney
Opening Up a Victorian Chimney - Kezzabeth | DIY & Renovation Blog
I uncovered this fireplace behind a wall of plaster. I removed modern bricks blocking up the opening but it doesn't look like it has good support/proper lintel. Bricks look a bit saggy
6 Best Ways to Close Off a Fireplace | Family Handyman
Blocking up an old fireplace, chimney breast
What to Do With a Closed Off Fireplace - Dengarden