Log Burner installation question

[mack1]

Hi all, we’re looking at a multi fuel burner installation with this set up as the starting point:

The bungalow was built in the 80’s, the fire is vented underfloor straight to the bottom of the deep box which holds the ash fallout. The actual fire is not large enough to take a burner, but there is room in front of it. My thoughts were to block the front of the fire place, run a flue through the plate and a little way up the chimney. The fire is a 8kw, to go in a large living room.

 

I’m thinking new legislation may make this idea obsolete so I’m asking for suggestions.

 

thanks in advance