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Case Study: MVHR retrofit design and installation in a 100-year old cottage

26 December 2020Patrick 5 Comments
Loft-fitted Zehnder Q350 MVHR with pre-heater by Heatspaceandlight.com

We have completed the design and first fix installation of a Zehnder Q350 MVHR system with ComfoTube ducting into a 100-year-old cottage that’s undergoing a low energy retrofit upgrade. The MVHR system will improve the indoor air quality, comfort and… Continue reading →

Air Quality, Airtightness, DIY, MVHR Air quality, Cottage, EnerPHit, Health, MVHR

What is Hygiene Ventilation and why should it be designed into homes and offices?

3 May 2020Patrick Leave a comment

When we consider examples of good hygiene in our home, we may think of easy-to-clean materials, strong disinfectants and mops and buckets. But as Covid-19 is proving, hygiene in the home also relates significantly to the air we breathe indoors,… Continue reading →

Air Conditioning, Air Quality, Health, Virus Air quality, Health, MVHR, Ventilation

Do we need to make homes airtight in the UK?

2 March 2019Patrick Leave a comment
old fashioned fireplace not right for an airtight home

30 years ago house-builders in the UK would have never considered how airtight they were building new homes. “Aren’t all homes fairly airtight, once you put the windows and doors in and pump the gaps with insulating foam?” Well, not… Continue reading →

Air Quality, Airtightness, Building Regulations, MVHR, SAP Air quality, Health, MVHR, Ventilation

MVHR Commissioning of a Zehnder ComfoAir Q600 with ComfoCool unit completed

14 June 2017Patrick 23 Comments
Complicated ducting for an MVHR system with ComfoCool

14 June 2017: Today we finished the final stage of what was a complete design, supply, install and commissioning of a Zehnder ComfoAir Q600 Mechanical Ventilation with Heat Recovery (MVHR) system – that also features cooling air-conditioning. Although we’ve commissioned… Continue reading →

MVHR, Overheating Air quality, Health, London, MVHR, Ventilation

How poor ventilation in your office is making you tired and ill

17 February 2016Patrick Leave a comment
The Shard, the moon and the old churches of London

We spend a huge part of our lives indoors – I’ve spent 96 per cent of my last 24 hours indoors, and it’s not an unusual day for me in winter. Consider your day. How long were you actually outside in the… Continue reading →

Health, Office Life, PassivHaus Health, Outdoors, Ventilation

Why double-glazing doesn’t solve your comfort issue – and can make it worse

12 February 2016Patrick 2 Comments
Trickle vent in double-glazed window

See if any of this sounds true to you. You live in a typical English home. It’s made of brick, it has timber-frame and single-glazed or double-glazed windows and woolly yellow insulation stuffed into the rafters in the loft. It… Continue reading →

Air Quality, Airtightness, Windows Double-glazing, Health, Ventilation, Windows

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Recent Posts

  • Case Study: Forensic airtightness test provides 30% lifetime improvement on heating bills, comfort and acoustics
  • Case Study: MVHR retrofit design and installation in a 100-year old cottage
  • Case Study: Cotswold new build is 100x more airtight than Building Regs and 6x more airtight than Passivhaus
  • What’s the difference between an MVHR Heat Exchanger and an Enthalpy that recovers moisture?
  • How you can still benefit from the Green Homes Grant

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