Reducing fireplace opening for a smaller surround and stove burner

[DIYnewbie1985]

Hi there! I would love to get some advice here.
I have a fireplace opening that is 40”x 40”. I wanted to get a fireplace surround that is 36”x36” because it is affordable and design I like. My plan is to install a wood burning stove after installing the surround but I am wondering how best do I reduce the fireplace opening?

For the side I am thinking I can layer bricks and render to bring the side in by 3” each. Do I need to also have to bring the top of the opening down as well if the fireplace surround can cover it ?

Thank you !

 

[oldbutnotdead]

3" brick columns are going to be a bit weak unless you tie them to the existing returns (either tooth them in or use wall starters if they're permitted in that location)
If you can get stable columns you can top them off with a concrete lintel and mortar and slate infill of the gap.
But first check that your proposed surround is suitable for use in a fairly high temperature environment.

 

[lostinthelight]

Most people seem to want to make the opening larger to get a better airflow around the stove, do you have any images of the opening and the intended surround.

 

[Tetrarch]

I installed a wood burning stove and would recommend having as much space around it as you can. Tools and wood storage for instance.

Aesthetically I think it is nice if the gap around the stove is proportional and as even as possible.

Our stove is 800x650 and sits inside a 1700x1200 opening

Regards

Tet

 

[foxhole]

Stoves have a minimum clearance required to prevent heat damage , check the model you intend to fit .