Case Study: Cotswold new build is 100x more airtight than Building Regs and 6x more airtight than Passivhaus

It’s subtle and understated in its impact on UK housing, but this new build bungalow home is one of the most energy efficient buildings in the world, and represents the future of housebuilding in the UK and Europe. We pressure… Continue reading

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

Enthalpy Heat Exchanger ERV MVHR

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… Continue reading

How the cost of an MVHR relates to quality and performance

Crushed and bent flexi-duct will increase noise in an MVHR

I’ve written before about the average cost of a high quality Mechanical Ventilation Heat Recovery (MVHR) installation, which includes itemised costs for detailed ductwork layout, materials supply, installation and commissioning (airflow balancing and handover). Today I’m going to explain (with… Continue reading