Hi all,
We are currently renovating a flat in a 100-year-old building and we are looking into various fixes for various problems.
The flat suffers from poor ventilation, mould, freezing cold in winter, too hot in summer, condensation, high heating bills, draughts, and other things.
We plan to replace the windows, most probably insulate the exterior, and hopefully draught-proof the flat a little, but I don't think it will ever be airtight...
Would a heat recovery ventilation system be a feasible fix?
