Flat 51mm semi-rigid ducting running pinned neatly to ceiling joists to prevent loss of room height – Heat Space and Light Ltd MVHR Install 18.07.2021 Published 18 July 2021 at 1127 × 835 in Flat 51mm ducting MVHR system installation in low ceiling building Flat 51mm semi-rigid ducting running pinned neatly to ceiling joists to prevent loss of room height Next →