Hi I have unblocked the fireplace in my first floor flat to use as a decorative space with an electric stove heater in
iv got to the lintel but would like to widen it so I can fit in a 25inch wide stove heater at the moment it’s 22inches wide and not sure what way to go from here.
there were grey blocks filling the gap and whoever did it used 2 lengths of copper pipe to hold them up which iv took out now.
the plate for flue looks like it’s intergrated onto the concrete lintel too which iv not seen. Anybody can help with a way forward that would be great thanks