FANS
decreased in importance. Indeed, overheating as a result of this type of ventilation is a fairly common occurrence. The combination of a warmer climate and
more insulated buildings means that the period of time in which MVHR is viable is shortening, and the need for an alternative system, which is capable of introducing cooler air into buildings, is increasing.
MVHCR as the solution Mechanical Ventilation with Heating and Coolth Recovery (MVHCR) units, such as Elta Fans’ Vigo and PREMA range, are capable of maintaining thermal comfort within buildings, even during warmer months. By essentially acting in reverse, they are capable of passing outgoing cooler air over the heat exchanger,
which helps to ensure the incoming air remains ambient.
This has a very obvious impact on the thermal comfort for occupants, as the desired comfort level can be maintained, whether the outside temperature is warmer or colder than inside.
It also has a knock-on effect on the
efficiency and effectiveness of air- conditioning, which has itself come under increased scrutiny over the past few years. Manufacturers of air conditioning units
are under pressure to deliver a more environmentally friendly product, in light of the fact that a sizeable proportion of the UK’s energy consumption is linked with the units. MVHR acts in a similar way to opening a car window with the air-con on: the vehicle’s
climate control has to work harder to combat the incoming warm air.
MVHCR dovetails extremely effectively with air conditioning, because it prevents the coldness within the air from escaping, and instead transfers it to the warmer incoming air. In doing so, it helps to reduce the amount of work that air conditioning units have to do to keep a building cool, as they work in tandem to achieve the ideal internal temperature. MVHCR is the year-round solution, capable of improving thermal comfort across all seasons. As our climate becomes progressively warmer, and our structures are increasingly better insulated, the ability to both heat and cool incoming air is vital in achieving thermal comfort within our homes and commercial buildings.
www.acr-news.com
January 2020
25
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