MVHR Services

We offer an intial advice and quotation service for domestic MVHR systems in Scotland, England, Wales – and that’s free of charge.

The quotation includes:

• Air flow calculations according to Building Regulations and real best practice methodology.
• Proposed MVHR systems to Passive standards and – if possible – economy standards. We
• High quality ducting and noise attenuation (we have a no-compromise policy on ducting, as this stays within the building structure long-term).
• Internal and external terminals. We usually propose designer room terminals, but also offer cheaper PVC terminals as option.
• 3d-design service, including project support. We design with Revit 3d.
• Options for commissioning and installation services, depending on the site location.

If you would like to get a free quotation, please send us your floor plans and section drawings (if available).

We offer CPD accredited training for architects, engineers and other building professionals.

If you want to discuss project related or general issues, please contact us by email: info@paulheatrecovery.co.uk

Please contact us for any training opportunities and CPDs on:
– 01383 221 255
– or via email: info@paulheatrecovery.co.uk.

We can offer following training:

• General awareness training in IAQ/ IEQ and ventilation strategies
• Training for designers on how to specify MVHR systems and what to be aware of in terms of their design
• Training for installers on how to install and commission MVHR systems
• Training for service technicians on how to maintain MVHR systems
• Training for housing officers on how to handover systems and educate users

We can also organize CPD’s online via Skype.

Following topics in regards to domestic ventilation will be covered:

1. Air Quality: What do we breathe in?
2. Air Tightness & Natural Ventilation
   Standards for air tightness and what effect it has on the IAQ
   Humidity control
   Is natural ventilation still viable?
3. Ventilation Strategies: PIV, MEV, dMEV, MVHR
   Advantages and disadvantages of each system type
4. Performance gaps and how to avoid them
   Avoiding problems with the installation
   Different ducting components and how to avoid poor quality
   The correct specification of high performance MVHR systems
   Controllability & maintenance
   Design of ducting systems
5. Legal Framework: Challenges & Opportunities
   Ventilation requirements of different standards in comparison
6. Cascade Ventilation (dMVHR): The Smart Way of Ventilation
7. Case Studies: When occupants get excited
   Passivhaus and heating with air
8. Maintenance of MVHR systems

Paul Heat Recovery Scotland offers a professional consultancy service for planned and existing projects, specialising on ventilation for low energy, NZEB and Passivhaus buildings. We also offer training for installers and product training for retailers.

With a huge bandwidth of different ventilation systems on the market, choosing the right ventilation strategy and material mix can be difficult.

We do provide your optimal ventilation strategy and offer a number of different solutions from whole house MVHR, cascade MVHR and MEV/dMEV. We find out the most appropriate solution, depending on the ventilation requirement, available space and service routes, budget and your individual demands.

We can also consult on problem projects to find ways to rectify issues.

Only the best performing technologies and ducting material are being offered.

We have scanned the supply industry for good ducting products and components and offer high-quality products to our customers. Unfortunately there is not one company that does all products and all products well, so we source our product mix from a number of UK and European suppliers.

In an emerging trade, such as domestic ventilation, questions do arise and need answered. We do have simple installation guides to help make all work flow efficiently and avoid surprises. It is advisable to make all trades aware of the duct layout design before the work commences on site.

Following interlinks typically with other trades:

A) Joiner/ Builder: The penetrations through the external walls (or roof) need to be formed. Typically we need 165-170 mm or 205-210 mm holes.

B) Plumber: Most MVHR systems have a 32mm condensate connection, that needs to be connected to the waste water system.

C) Electrician: A single or double 240V/ 13A socket is needed at the MVHR unit. Depending on the controls, also a CAT 5 or CAT 6 connection is needed to the controller or router.

We find it beneficial for the co-ordination of the services installation to start with the largest diameter of pipework (drainage and ventilation) before the smaller services are getting installed (water, heating and electrical).

If you are stuck, please contact us, we are just a phone call or email away from you.

We do offer accredited training for Domestic Ventilation Installers (BPEC), as well as MVHR Product Training.

For certain building sites in Scotland we can also arrange an on-site training on how to install the MVHR system.

Please contact us if you are interested.

For those who want to install the system themselves, we also offer a comprehensive installer training. Please ask us for details.

Whilst we endeavour to supply only high quality products with long system life-times, a number of third-party MVHR systems are coming to the end of their life now and either need to be repaired or replaced.

We had a number of customers with cheaper systems asking us of we could replace their defect, noisy or in-efficient MVHR with a better unit. In most cases it is possible to connect a new unit into the existing ductwork without causing disruption to the interior or exterior of the dwelling. We do need to do an on-site survey to check the type and state of the ductwork, condensate connection, air terminals and accessibility to decide on the best way forward.

If needed we can also replace the room terminals for more aesthetically pleasing and functional terminals, such as Lindab’s designer valve Airy.

Please contact us to arrange a site visit to see if we can help you with our MVHR replacement service in Scotland.

We are there for you to do our best to answer your questions and resolve issues.

We offer the following warranty:
– A 2 year warranty on parts and labour for all MVHR units.
– If you register Zehnder MVHR units with Zehnder (as per sticker on the unit), you will get 1 year warranty for parts and labour, plus additional 5 years parts only.
– bluMartin extended warranties can be purchased online.

An online meeting to discuss design of mechanical heat recovery units (MVHR) with Stephan Huber, Director of PAUL Heat Recovery Scotland was frankly the best CPD I have ever attended!

Informative, frank and at the level of detail you should expect from an expert! I was so pleased to see his name on the PassivHaus Trust’s ‘MVHR Maintenance guide’ (link below).

A must read for all building professionals and tenants that have MVHRs in their homes!

Maiia Williams, Architect and Certified Passive House Designer