I think it's 1930's or between the wars.

I was brought up in a house with a nasty brown version, yours is lovely. A little more upmarket than ours.

The red tiling smacks of 1930s as Margaret has suggested. So I would suggest Art Deco. Here’s a couple Of pics I’ve found of similar fireplaces to yours.

Ahhh brilliant! Thanks for your comments. I think we will replace it with something more sympathetic :-)

I like the burner! Just not in your fireplace😁

I agree, the two elements don't complement each other at all.

With the burner out and a lovely black grate in place you may fall in love with the fireplace , I think I would...

But , inspit.e of what I've just said, I would definitely remove the wood burner

Clearly the two styles don't match or fit together in terms of dimensions. I think the result is ugly. But the burner cleaned up, could look great in the right setting - so sure, remove it, but please don't smash it up.

It's all part of the rich fabric and history of a house. I love the stove and the fireplace, but if you don't, I agree with others: go half way and remove the stove, but live with the lovely fireplace for a while, then decide. And no, it's not from 1899 and neither is the mantelpiece.

No. its not as old as that.

I get the whole thing about respecting the ongoing history of the building and not just changing things for the sake of change, but in all honesty if it was me I could not live with those red tiles for a second longer than I had to!