MVHR and building physics knowledge for healthy, comfortable and energy efficient homes
Heat, Space and Light Ltd has recently completed the design, supply and commissioning of an MVHR system with cooling via a reversible air source heat pump at a Dutch barn-style new build in Northamptonshire. The home has been built with a series of cross-laminated timber beams gently curved to mimic the dutch barn shape. Now … Read more
Our MVHR design and commissioning team has recently completed the detailed ductwork design, supply of materials and balancing of our Mechanical Ventilation with Heat Recovery system (MVHR) at a highly sophisticated new build home in Surrey. As part of our turnkey MVHR design, supply and commissioning service we’ve issued the MVHR Ventilation Airflow Measurement and … Read more
Lately we’ve been seeing a few MVHR manufacturers offering “free” MVHR ductwork designs with their product sales. If you’re planning an MVHR system in 2022 for your build project you will have likely been offered or found a free MVHR design service yourself. At Heat, Space and Light we charge for our MVHR detailed ductwork … Read more
The top-ten warmest years in the UK have all occurred since 2002 according to the Royal Meteorological Society. And as homes are increasingly built to high levels of thermal efficiency for our cold winters, the risk of new build homes overheating in summer is massive – if not designed with overheating mitigation in mind. We … Read more
Forensic Airtightness Testing and Strategy by Heat, Space and Light Ltd has helped a new build home in Dorset achieve a drop in its final airtightness rate that will result in £100s of heating savings every year, turning it from a leaky home to an airtight home. Forensic air testing improves Air Permeability from 6.4 … Read more
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
The Heat, Space and Light team has designed and supplied a flat 51mm semi-rigid ducting MVHR system for a basement home in London, in order not to lose any room height. The ducting measures a mere 51mm in height, is crush-proof and has smooth and anti-bacterial lining within the duct. Installed by our trusted installers … Read more
Heat, Space and Light Ltd has replaced and re-commissioned an under-performing MVHR unit with a brand new 91% efficient Zehnder MVHR in a self-built eco home in Glastonbury, Somerset. The old MVHR was a weak link in an otherwise exceptionally high performance, energy efficient home. The new MVHR unit now features Automatic Summer Bypass, important … Read more
A Mechanical Ventilation Heat Recovery (MVHR) unit is a cornerstone of a low energy home with healthy indoor air. There are a lot of MVHRs on the market, and one way to compare between another is to look at its Heat Exchanger Efficiency score. Today I’ll explain what to watch for when comparing a cheap … Read more
This article will explain MVHR’s compatibility with other mechanical services within the home such as underfloor heating, air conditioning, heat pumps and cooker hoods. An MVHR system is a future-facing home technology that will help achieve the UK’s low carbon climate change goals, so it’s important that it works well. MVHR and underfloor heating An … Read more