MVHR and building physics knowledge for healthy, comfortable and energy efficient homes
This article will explain the full itemised costs to fit a high performance MVHR system in a new build or renovated home in the UK. It has now been updated for 2025 prices based on our cross-industry experience of specifying hundreds of MVHR systems over the last few years. Prices have settled across the board, … 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
If you would like to learn more about what’s involved during a building airtightness test in the UK, please read on. If you have a new build project or renovated building which requires an airtightness test for any reason, please contact me on Patrick [@] Heatspaceandlight.com for pricing. Any new build in the UK has … Read more
When we talk about “low energy homes”, what are we really talking about? Well, when we’re trying to build low energy homes what we’re figuring out how to use the lowest amount of energy to heat the entire space in your home to a comfortable 20DegC (and how to keep it at 20DegC). Where does energy come from … Read more
Today Professor David Mackay of the Department of Physics in Cambridge and former Chief Scientific Advisor to the UK Department of Energy and Climate Change (DECC) lost his battle with cancer. Professor Mackay was the reason a lot of my colleagues moved into low energy design, microgeneration technology and sustainability industries. He was one of the … Read more