How the price 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 price of a high quality Mechanical Ventilation Heat Recovery (MVHR) installation, which includes an itemised price for each detailed ductwork layout, materials supply, installation and commissioning (airflow balancing and client handover). Today I’m going… Continue reading

How much duct space do you need around the house for an MVHR system?

MVHR with ComfoCool installed in a residential home showing spacing requirements

The most common question I’m asked by people interested in mechanical ventilation with heat recovery (MVHR), low energy building design or Passivhaus is: How much space do we need for the ducts in an MVHR ventilation system? Variations to the… Continue reading

What puts people off about MVHR systems? Cleaning ducts, airborne viruses and maintenance explained

In my role as the lead MVHR technician at a Passivhaus / low energy design building consultancy we have received lots of questions and queries about MVHR systems. I’ve collected together my responses to some of the most pressing concerns… Continue reading

Difference between a branch and radial MVHR duct system – and which is better?

Manifolds for a radial semi-rigid ductwork system mounted on concrete floor

When you have decided to specify a Mechanical Ventilation with Heat Recovery (MVHR) system for your home, it can quickly become confusing which type of ducting to use. There are two main types of MVHR ducting to choose from, explained… Continue reading