Outdoor fireplace - wall protection advice needed...

[JohnW]

Hi,

We had an outdoor fireplace constructed and lit it for the 1st time last weekend. It was a roaring success (if you pardon the pun!).

 

I'm concerned that the plastered walls won't stand the test of time and intensity of heat and was wondering if anyone could recommend a suitable material to line the internal walls to give it some protection from the heat.

 

Thanks

[SiBee]

Think we used vermiculite fire board and fire bricks for the last gas fired kiln we refurbished in work. Was not cheap to buy but easy to work with.

 

Si

[PeterW]

You could use a steel or cast fire back - they would look pretty good and easy to procure. They need a 25mm stand off to stop the plaster scorching. 

[JohnW]

Thanks @SiBee, I've been advised that vermiculite absorbs moisture and is therefore not suitable for an outdoor fireplace.

 

Thanks @PeterW, I like the sound of lining it with steel. I guess I could make small brackets that would give me the 25mm buffer zone off the wall on each side.

[SiBee]

When the metal rusts though, will this not cause nasty staining on the surrounding surfaces?

 

[JohnW]

20 hours ago, SiBee said:

When the metal rusts though, will this not cause nasty staining on the surrounding surfaces?

 

That's a fair point @SiBee, thanks.