Unit 6 Cobham Business Centre Cobham Road Ferndown Industrial Estate Wimborne, Dorset BH21 7BX

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Positive Input Ventilation (PIV) - cost-effective solution for mould and condensation in your home

Intelligent home ventilation system is set up in over 1 million homes in the UK and it is the most preferred solution for home ventilation.

What is Positive Input Ventilation?

The most reliable and low energy technique of curing & ensuring safety against condensation, dampness and air quality in the home. Fresh, filtered air is drawn through the near silent unit situated in the loft area of the home. Clean air is then pushed through a diffuser situated on the landing or hallway and dispersed through the home. This positive pressure pushes the humid and stale air out of your home through trickle vents and any gaps in and around your home.

It is estimated that 1 in 5 houses in the UK are poorly ventilated, leading to problems of streaming windows and mould growth.

Properties that have been made more energy efficient with insulation and double glazing can trap moisture inside the home.

There are various types of PIV. The Drimaster-Eco range is Dorset Electrical Solutions’ market-leading product created for 2 and 3-storey homes with lofts. The Flatmaster is developed for flats, apartments and basements. These easy-to-install and maintain ranges are also economical and cost effective, making them the perfect solution for both brand-new developments and retrofit applications.

Fresh, filtered air is drawn through the near silent unit situated in the loft area of the home. Clean air is then pushed through a diffuser situated on the landing or hallway and dispersed through the home. This positive pressure pushes the humid and stale air out of your home through trickle vents and any gaps in and around your home.

Benefits of PIV

Improved Indoor Air Quality

PIV systems continuously introduce fresh outdoor air into the living spaces of a building, which helps dilute and remove indoor air pollutants such as dust, allergens, and volatile organic compounds (VOCs). This can lead to a healthier and more comfortable indoor environment, particularly for individuals with respiratory issues or allergies.

Condensation Control

Positive Input Ventilation systems can effectively control condensation and dampness issues in homes. By introducing warm, dry air from outside, they raise the indoor temperature and reduce relative humidity, which helps prevent condensation on cold surfaces like windows, walls, and ceilings. This can help prevent mold growth and damage to the building’s structure.

Energy Efficiency

They use low-energy fans to introduce fresh air, and the warm air from outside can help reduce the need for heating during cold seasons. By maintaining a more stable indoor temperature and reducing the reliance on energy-intensive dehumidifiers or air conditioning, PIV systems can lead to energy savings and lower utility bills.

Passive Ventilation

PIV systems promote passive ventilation by encouraging the natural movement of air through the building. This can reduce the need for mechanical ventilation systems, which can be noisy and require maintenance. Passive ventilation can also help maintain a more consistent and comfortable indoor temperature.

We use top-of-the-range Nuaire Drimaster equipment for all our PIV work

We exclusively use state-of-the-art PIV equipment from top manufacturers such as  the Nuaire Drimaster Eco System, so you know you are only getting the very best for your PIV Installation. 

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What causes the problems in your home?

Cooking, cleaning and bathing

These activities generate up to 10 litres of moisture per day. In addition, every load of washing that is hung to dry inside adds an additional 2.5 litres. All together there could be 12.5 litres of moisture generated in the home every single day which can cause condensation and mould.

Volatile organic compounds

Substances like formaldehyde get into the home from things like paint, new furniture and cleaning products. The average person breathes 9,000 litres of indoor air each day, so poor indoor air quality (IAQ) can cause serious risk to health such as heart and respiratory diseases, and asthma being a key concern.

Increased insulation

In the drive to insulate our homes we have created an airtight box where, not just heat, but moisture and chemicals can’t escape. This causes poor indoor air quality, which can contain a cocktail of over 900 chemicals, particles and biological materials, which can have a negative effect on health

Need to solve these problems now?

How it works

Watch the video to see how it works

Boost your indoor air quality (IAQ) and say goodbye to your condensation and dampness problems with Drimaster-Eco Positive Input Ventilation (PIV) system. We have made a detailed video that will help you decide whether PIV is the right solution for your home. We can supply and install your new PIV system with minimal fuss and at a great price.

We are a professional team experienced in installation and maintenance of Positive Input Ventilation systems. We understand that planning of PIV should be different for every home and we use our experience to create a plan that works best for your home.

Why choose us?

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Over 20 Years Experience

We have more than 20 years experience servicing customers throughout Dorset, Hampshire and Wiltshire. We pride ourselves on being a friendly, honest and dependable company that you can trust, and we have numerous reviews from satisfied customers to back this up.

We only use the best equipment

We’ve invested heavily in advanced equipment and machinery that ensures we can do the most thorough and professional job possible when it comes to all kinds of electrical and related work. 

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We're full qualified and certified

We currently employ a team of fully qualified electricians and a number of apprentices. We have been registered with the ECA and therefore all our electricians are JIB registered. 

Our accreditations

What our customers say about our work

Very happy with the service provided by this company, very efficient and knowledgeable.

Ben Webster

Google Review

From first contact, through quoting and adjustments thereto to completion of the works I have nothing but praise for DES Ltd. They communicate clearly, are practical, hard working and work to high standards. I recommend them highly.

Nicholas Knollys

Google Review

My experience with Dorset Electricial Solutions was friendly, professional and great attention to detail was shown at all stages of the job. I was really impressed with how efficiently but also how quickly the work was carried out. Thank you so much, I'm delighted!

Ruth Willis

Google Review

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FAQ's about PIV

Find the answer to your questions below.
Use the link to ask your own question, and we’ll get back to you with the answer.

PIV is a ventilation system that uses a fan to draw fresh outdoor air into a building, improving air quality and reducing humidity and condensation.

PIV systems work by introducing filtered outdoor air into the home through a strategically placed inlet, typically in the loft or roof space. This positive pressure pushes out stale indoor air, improving circulation.

PIV systems can help reduce condensation, mold growth, and indoor air pollutants. They also promote better overall air quality and comfort in your home.

PIV systems can help reduce condensation, mold growth, and indoor air pollutants. They also promote better overall air quality and comfort in your home.

PIV systems are generally suitable for most homes, including flats, houses, and apartments. They can be particularly beneficial in properties with condensation and air quality issues.

PIV systems are designed to operate quietly, and their noise level is typically minimal. You can expect them to be quieter than traditional extractor fans.

While some homeowners may be able to install a PIV system themselves, it is often recommended to have a professional install it to ensure it is done correctly and meets local building codes.

PIV systems usually require minimal maintenance. It’s advisable to clean or replace the filters periodically and ensure the system is functioning properly.

PIV systems can complement other ventilation methods, such as trickle vents and extractor fans, to create a comprehensive ventilation strategy for your home.

Yes, PIV systems are generally energy-efficient as they use a low-power fan to circulate air. They can also help reduce heating costs by preventing heat loss due to excessive ventilation.

Have your own question you'd like to ask us?

Speak to us about getting the benefits of PIV for your home now

Submit the form and start the process of achieving better indoor air quality, reduced condensation, less mould growth and reduced maintenance costs for your home.