Pictures of recent NILAIR Ducting install to a large low energy family home in Surrey. Nilan Comfort 600 working in conjunction with 16kW Air Source Heat Pump. Two sets of manifolds were employed to reach the front of the property in the easiest manner. 160mm diameter ductwork to 2 x 12 port NILAIR manifolds and 125mm diameter ductwork to 2 x 6 port NILAIR manifolds. Also note the entire extract and inject system for the upper floor rises from the ceiling void from downstairs. A necessary but very neat solution!