Is this how all new homes should be built in 2023? (Case Study)

MVHR kitchen extract grille with grease filter in luxury home

Heat, Space and Light Ltd has completed the design, supply and commissioning of a Passivhaus-specification MVHR ventilation system for a luxury new build in the northwest of England. The home was also tested by our building airtightness team and achieved an incredibly airtight result of 0.76 m3hr/m2 @50Pa. It’s only slightly shy of a fully-certified … Read more

North Scotland new build built airtight with MVHR

Air permeability testing a new build in Skye

Heat, Space and Light Ltd has completed the fabric airtightness permeability testing and design, supply and commissioning of an MVHR system at a new build in the beautiful Isle of Skye. The low energy home, which faces a bracing cold wind from the ocean, was built in timber frame on site. The home is located … Read more

What’s the difference between an MVHR Heat Exchanger and an Enthalpy that recovers moisture?

Internal mechanism of an MVHR unit

If you’re researching installing a Mechanical Ventilation with Heat Recovery (MVHR) system for your project, you may have heard of an Enthalpy heat exchanger or ERV (Energy Recovery Ventilation). But what is an “Enthalpy” heat exchanger? How does it change humidity in the home? And is it expensive to install? The basics of enthalpy heat … Read more

Five most common problems with Mechanical Heat Recovery (MVHR) Units

MVHR Schematic showing how warm ambient air can affect the accuracy of the Heat Exchanger Efficiency

Modern homes are shifting towards increasing levels of airtightness in order to secure heat-saving benefits. With increasing levels of airtightness comes a need for a ventilation strategy. For Passivhaus, this means an MVHR system. Heat from the home is lost in two ways: through the fabric elements as it passes through our walls, windows, doors, … Read more