How do home ventilation systems work?
Benefits of Using a Home Ventilation SystemHome ventilation systems move air from the outside of your home to the inside to enhance air quality. Usually, this process involves a degree of filtration, which removes pollutants and allergens. As a result, air quality is enhanced.

As well as enhancing air quality, home ventilation systems come with a host of other benefits. From maintaining a steadier temperature to eliminating dampness, they have multiple ways of making your home life more comfortable. These systems have come a long way in recent years, with some even addressing humidity. Knowing a little more about how they work can help you choose the right system for your home.

Energy efficient GMUSEM-solution

Envistar Home Concept is a range of centrally located, highly efficient FTX units tailored specifically for blocks of flats. Customised control equipment and a wide range of fans, motors and heat recovery units provide everything you need for energy optimised air handling. Simple ownership

Do you need to improve the ventilation in your property or are you constructing a new build? In which case, we would recommend the Envistar Home Concept unit, tailored specifically for blocks of flats.

The central location of the unit facilitates service and supervision. It reduces your costs and you do not need to disturb any tenants to carry out servicing. High-efficiency

High efficiency means that the heat recovery must be above 80%, dry temperature efficiency. In addition, the fans that drive the unit have a very low SFPy value. 

Advantages

Centrally located

Customised control equipment for blocks of flats High degree of heat recovery

Components with low pressure drop Efficient fans, low SFPvalue Each unit manages 6-160 flats

Easy for the property owner, the installer and the tenant

Fresh air is brought in via slot valves in window frames. Extract air is extracted through valves in bathrooms and kitchens. The heat in this system is recovered through an external heat pump, which is connected to the extract air unit via a brine system

Advantages

Simple duct system

Heat recovery from the extract air

Disadvantages

.Two heat exchangers result in inferior efficiency. Extract air to brine and brine to heat pump

. Brine systems that use cold liquids give rise to exhaust air and corrosion problems and must be insulated in order to prevent condensation

·Many separate control systems must be coordinated

Fresh air is brought in via trickle vents in window frames.Extract air is extracted through valves in bathrooms and kitchens. The heat in this system is not recovered but disappears straight out through an extract air fan.

Advantages

.Simple duct system

Disadvantages

No energy recovery means a lot of energy is wasted

.Complicated access for filter replacement and cleaning of trickle vents

.Cold and draughty

Does not meet the requirements from the Swedish National Board of Housing, Building and Planning for renovations and new-builds

Advantages

.Easy access for replacement of filters and servicing.For

example, 30 apartments = one unit, which means two fans and two filters

.Central control and monitoring

.Separate air paths, no risk of air transfer between extract air and supply air

Disadvantages

. Low-efficiency fans, usually belt driven with high maintenance costs

. Low heat recovery rate,40-55%