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AIR CONDITIONING & AIR QUALITY


BSEE


Highperformance continuous extract fan offers building regulations compliance


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To help landlords and installers comply with Building Regulaons, Elta Fans has expanded its decentralised mechanical extract venlaon (dMEV) fan range with the introducon of the MORI dMEV II 150HT


lta Fans’ dMEV range provides ultra-quiet, low- energy ventilation for use in kitchens, utility rooms, bathrooms, shower rooms, en-suites and


toilets. These continuously running units are designed to provide improved performance over intermittent extract fans for the existing homes market, as they are able to provide a guaranteed ventilation rate and do not have a high dependency on background ventilators, such as trickle vents in windows.


Paul Harrington, head of residential sales at Elta Fans, comments: “For many years the most popular fans in the U.K. have been intermittent versions, which do nothing until they are switched on by the owner or occupier. They can be noisy and ineffective, explaining the rise in popularity of dMEV systems.” A crucial factor in the provision of ventilation in UK housing is compliance with Building Regulations, which has become even more pertinent since the Homes (Fitness for Human Habitation) Act 2018. Landlords and building owners have a responsibility to provide appropriate ventilation, otherwise they could be taken to court and forced to pay compensation to aggrieved tenants.


The various ventilation requirements are numerous, so it is important for landlords, designers and installers to familiarise themselves with the regulations. Approved Document F and the accompanying Domestic Ventilation Compliance Guide outline the key requirements for ventilation in homes, and highlight why the introduction of the 150mm MORI dMEV II fan is vital.


Harrington explains: “Continuously running fans operate at what is known as a ‘trickle speed’. The Building Regulations specify the level this must be in order to ensure compliance and good performance, based on occupancy, floor area, and the number of bedrooms. For example, in


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a typical three-bedroom dwelling with 4 occupants and a floor area no bigger than 70m2, the continuous ventilation rate should be at least 21L/s – a level that can be difficult to reach for some dMEV models.


“The MORI dMEV II 150HT has a very high trickle rate of up to 29L/s (and up to 50L/s when on boost), which provides peace of mind that Building Regulations can be achieved, even in larger homes with high occupancy levels.”


The prevalence of intermittent extract fans in the UK means that the actual process of replacing them with continuously running units is an important consideration. With this in mind, Elta Fans’ 150mm dMEV can be used as a direct replacement to existing 150mm kitchen extract


fans, allowing for a quicker and cleaner installation.


Harrington concludes: “Complying with Building Regulations will always necessitate research into the unique needs and requirements of individual properties, and discussing ventilation options with manufacturers should be the preferred option.


“The high performance of the 150mm dMEV unit equips landlords and installers with the confidence to meet their legal obligations in a quiet and efficient way. This ensures tenants are satisfied and customers are kept happy.”


For more information on Elta Fans’ range of continuous extract fans, visit: https://www.eltafans.com/product- category/residential/continuous- extract-fans/


of intermient extract fans in the UK means that the actual process of replacing them with connuously running units is an important consideraon. With this in mind, Elta Fans’ 150mm dMEV can be used as a direct replacement to exisng 150mm kitchen extract fans, allowing for a quicker and cleaner installaon





Read the latest at: www.bsee.co.uk


BUILDING SERVICES & ENVIRONMENTAL ENGINEER FEBRUARY 2020 11


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