Heat recovery has become a key concept in both new construction and energy renovation. But what does it really mean - and why is it such a smart solution when it comes to ventilation? In this article, we'll cover the basics, the benefits and what to consider when choosing a ventilation units with heat recovery.
Heat recovery is about utilising heat that would otherwise be lost. This can involve recovering heat from industrial processes, ventilation systems or other sources and using it for heating, hot water or other purposes.
For example, in a traditional ventilation system, the heated indoor air escapes through the vents, while cold outdoor air is drawn in and has to be heated from zero. This wastes a lot of energy.
With a heat recovery system, a large part of the heat is retained in the house. A heat exchanger captures the heat from the exhaust air (the air being extracted) and transfers it to the fresh supply air coming in. The result? A more even and comfortable indoor climate - while significantly reducing energy consumption.
Heat recovery is based on the principle that heat is transferred from a warmer medium to a colder one. This is done with the help of a heat exchanger - a technical solution that enables efficient heat transfer between two separate air flows.
There are different types of heat recovery systems - from simple variants to advanced, fully integrated solutions.
In dwellings, the so-called HRV ventilation (exhaust and supply ventilation with heat recovery). This means that used air from kitchens, bathrooms and other rooms is passed through a ventilation unit. There it passes through a heat exchanger that transfers the heat to the incoming cold outdoor air.
Heat recovery is particularly useful in modern, airtight houses. But even in older houses that are undergoing energy renovation - for example, when replacing windows, adding insulation or installing new ventilation - an FTX system can make a big difference.
Do you have direct-acting electricity, an electric boiler or generally high heating costs combined with poor ventilation? Then there are often big savings to be made.
For an FTX system to work optimally and be as energy efficient as possible, several factors need to work together - not least correct installation. It is therefore wise to consult an experienced installer or technical consultant to find the best solution for your particular property. We at Acetec AB, which manufactures FTX units, are happy to help you get in touch with one of our knowledgeable partners.
💡 Want to know how much you can save with a heat recovery ventilation system? Contact us at our technical sales team will help you with an energy calculation or a contact to dealers.
