Hole at base of open fireplace hearth

[Custom45]

Hi
Just doing some work on the fireplace hearth, planning to remove the old brickwork and rebuild it with a tiled top that matches the tiled floor.

Whilst removing existing tiles I found a small hole at the front that leads down into the floor, approx 3 inches in size. I can feel a slight draft coming from it so wondering if it was some sort of vent? It was covered loosely by the existing tiles. Any ideas what it's for and if it's needed?

Thanks,

 

[foxhole]

Could be old vent or pipe route or just a hole . You don’t need it .

 

[Custom45]

Could be old vent or pipe route or just a hole . You don’t need it .

Thanks for reply. Yes, assumed I wouldn't, was mostly curious what it was for. This fireplace isn't an original part of the bungalow, bungalow was built mid-50s, this fireplace was added maybe 30-40 years ago, so perhaps not even related?

 

[jj4091]

Old Baxi Burnall fires had to have an under floor vent fitted.

 

[Custom45]

Old Baxi Burnall fires had to have an under floor vent fitted.

Cheers, I guess that what it is then.

It's currently just an open fireplace, but having a Jetmaster firebox fitted. I'll tile over the old vent.

Thankyou for your help!