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90mm semi-rigid radial MVHR ducting installation in London deep energy retrofit

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90mm semi-rigid ducting in webbed joists and passing through core-drilled blockwork wall for MVHR system

The first fix MVHR installation of a 90mm radial ducted Mechanical Ventilation with Heat Recovery (MVHR) system continues. Designed and supplied by Heat, Space and Light Ltd and installed by our recommended third party installers, the MVHR system forms part of the low energy retrofit of a 340m2 Georgian home in Finchley, London N2. The … Read more

When spacing for MVHR ducts is tight, a combined intake-exhaust grille may be the solution

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Building Regulations requires that an MVHR’s intake grille (bringing fresh air into the property) and the MVHR’s exhaust grille (exhausting air from the property) should be 1.5 metres apart from each other. This is to prevent the system from sucking in the warm, humid exhaust air back into the property, also known as “cross-contamination”. The … Read more