The Zehnder ComfoAir you installed is a great machine – very quiet and with a stable app so easy to control. I was a bit sceptical about having MVHR – noise / servicing / how well it would work. The results so far have been very impressive. In winter when all windows and doors closed the feel of the air in the house is outstanding. An added bonus is the distribution of heat within the property so that we usually only need to heat the house from the underfloor heating in the ground floor slab which then radiates through the house – aided by the redistribution by the MVHR. Your team were great and the fact that you can cross specify products to create the most appropriate system is great.