Decentralized ventilation system

This is where the AirOdor comes in, extracting stale warm air and tempering the incoming fresh air via a heat exchanger. Since the air exchange is carried out via a pipe-in-pipe system with a diameter of only 160mm, the system can be installed quickly and easily. It is suitable, for example, for living room, bedroom or home office rooms.

The AirVital decentralized ventilation system for surface mounting. The room is soundproofed and supplied with fresh air in an energy-efficient manner via a two-way supply/exhaust air pipe. The compact device is ideal for retrofitting. Only one core hole to the outside and a power connection are required.

If there is the possibility of a straight direct connection to the outside – e.g. in the living area or in the case of semi-exposed basements on slopes – then, depending on the specific situation and where it makes sense in terms of energy technology, fans can be replaced by compact decentralized living space ventilation systems at relatively little expense. These have built-in heat exchangers.

Especially with decentralized ventilation systemsoften used in bedrooms, such as the AirVital Prime, a double consumption optimization is given. Firstly, the energy loss compared to opening windows is almost completely eliminated due to an integrated heat exchanger. On the other hand, the built-in fans require minimal energy because they only run when needed and are consumption-optimized. In general, apartment or individual room ventilation saves an enormous amount of electricity in contrast to uncontrolled window opening, as cooling and thus necessary reheating of the room air is prevented during the cold season. Operating time is optimized with intelligent sensors and controls. The energy consumption of the highly efficient fan motors is hardly significant in comparison and is usually even significantly lower than that of the room lighting.

A function of the control system ensures that air exchange takes place only during cool night hours. An “intensive ventilation” function can also very quickly replace warm, sultry air in the room with cool night air before bedtime. Typical bedroom ventilation systems constructively optimally soundproofed, guarantee whisper-quiet operation and save the decision “fresh air or noise from outside” especially in sultry summer nights.

Optimized sound insulation ensures whisper-quiet operation. Either in the covers and/or as a silencer in the wall opening. This keeps both the noise from outside and the already barely audible noise of the fans safely in check.

The three Decentralized Residential Ventilation Systems available from Limodor are equipped with exhaust air filters and supply air filters. The exhaust air filters prevent dirt (house dust, hair, aerosols, etc.) sucked in from the interior from attaching to the heat exchanger, fan or other components and impairing their efficiency or hygiene. The same applies to the supply air filters.

In addition to standard particle filters, activated carbon filters or fine dust filters can also be used, which separate even much smaller particles. They prevent allergens such as pollen, soot particles and various pathogens from entering the interior with the fresh air. Regular filter checks for contamination or the insertion of new filters is important for full effectiveness. The necessary change is indicated by the devices.

If these simple rules are taken to heart, then compared to uncoordinated window ventilation or cheap fans, decentralized residential ventilation provides very effective allergy protection for the home.

The three Limodor decentralized ventilation systems differ in their design:

The simple AirOdor basically has an axilal fan and a ceramic heat accumulator. During venting, the exhaust air flows over its surface and transfers its heat to it. Depending on the set cycle time, the fan then changes its direction of rotation and draws in fresh air, which passes over the previously heated surface and is thus tempered. Filters on both the supply air and exhaust air sides prevent fouling of the heat exchanger.

The AirVital and AirVital PRIME systems, on the other hand, have a counterflow heat exchanger and two fans. During operation, the supply and exhaust air flows are switched on simultaneously. The specially designed heat exchanger enables the warm air extracted from the inside to continuously transfer its thermal energy to the fresh air intake from the outside. There is no mixing of the two streams. Up to 94.5% energy recovery efficiency combined with minimal electricity costs for the fans in the AirVital PRIME impressively illustrate the energy efficiency of this system.

The central energy-saving element of these comfort ventilation units is the heat exchanger. It provides heat recovery in various construction methods, preserving the vast majority of energy in the house. The exhaust air stream sweeps over the heat-storing surface, releasing its contained energy. The incoming cool fresh air passes over the heat exchanger in the opposite direction and is pleasantly tempered.

This means that when air is exchanged, energy is saved twice: existing heating energy from inside the house is not released uselessly into the environment, as it is when windows are opened. Cold fresh air comes into the house already preheated and does not have to be heated by the heating system, which significantly reduces heating costs in the many cycles throughout the year.

Sometimes central ventilation is optimal. For example, if it can be planned from scratch for the entire living area in a new building with maximum efficiency. Or as basement ventilation, where a smart control system ensures condensation, mold growth and typical musty basement odors for the entire basement floor under sensor control.

A decentralized living space ventilation system with heat recovery is often ideal for renovations. It is ideal for retrofitting small apartments, offices or bedrooms, for example, where installation costs are manageable. In addition, these systems are very quiet and extremely energy efficient.

Sometimes, however, single units in only some rooms such as toilets, bathrooms, wellness rooms, utility rooms or garages are the best solution. Control modules allow the fans to be optimally adapted to the task at hand and automated. Combined with properly executed window ventilation in the rest of the apartment, this creates an inexpensive, yet energy-saving and comfortable solution.

The advantages and disadvantages, and then the appropriate system selection, are best made together with the architect or builder and the installer who will plan and implement the ventilation design.

The most important bonus of decentralized residential ventilation is its ease of installation. Decentralized ventilation units can be installed specifically in individual rooms. It is not necessary to relocate the pipe system. Essentially, all that is required is a wall breakthrough or core drilling through the exterior wall of the room in question and an electrical connection. Several devices can be used independently of each other in different living areas. A combination of centralized and decentralized residential ventilation is also possible.