Basement

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.

Effective dehumidification works only when the humidity outside is lower than inside. This is also temperature dependent. The controller uses the sensors to detect when optimal ventilation conditions are present. Only then it activates the ventilation. Faulty ventilation with warm humid air from outside is prevented.

Often in basement rooms are located laundry room, laundry drying room, sauna or fitness room. Surges of moisture, for example after a sauna session or after hanging up a load of wet laundry, are detected by the moisture sensor and the ventilation is activated at intensive level for a limited time to remove the moist air from the room as quickly as possible.

Several quality factors count: A currently accumulating large amount of moisture must be transported out of the room into the open air as quickly as possible and at the same time without a large loss of energy. In addition, the room should not cool down much in the cold season to prevent condensation. This requires high-performance exhaust air units that run in an automated manner for short periods of time in full-load operation and then either turn off or run in an energy-efficient base-load mode. Ventilation activation is done by manual on/off or better automatically via pure efficient humidity control.

Yes, the control system detects a momentary high moisture load and automatically activates the ventilation, which quickly and efficiently brings the steam outside. At the same time, however, it ensures that in normal everyday life, ventilation only takes place when the outside air is drier than the basement air. this provides optimal cellar climate.

Yes, individual systems can be realized for both single-family houses and apartment buildings. They are planned individually according to the size and situation on site. In larger properties, where basements are shared by many residents, it is often useful to have more sensors, additional or more powerful ventilation elements, and other controls. Compact single-family basements are individually designed in terms of ventilation to suit the particular use by the homeowners. Where desired and appropriate, they can be integrated with the rest of the rooms in the house in a common ventilation concept or equipped as needed, for example, with a sauna ventilation.

LIMODOR basement ventilation systems are available in a standardized basic configuration as well as in a configuration that can be planned as desired.

Effective dehumidification works only when the humidity outside is lower than inside. The controller uses combined temperature and humidity sensors to detect when optimal ventilation conditions exist. Only then it activates the ventilation. Faulty ventilation is prevented. Another important criterion is the wellness or fitness areas increasingly located in basements. Moisture is typically generated in these, often large amounts in a short period of time as in sauna airing. This must be reliably detected and extracted, ideally without making these rooms uncomfortably cool. At the same time, unpleasant smell of sweat is also removed with and the rest of the storage rooms are protected from mold and cellar stink. The smart control system takes care of that.

In this case, a powerful fan box is the ideal solution, which simultaneously extracts air at several points and brings it outside via poppet valves installed in a central exhaust pipe running across the basement. Dry fresh air enters the basement from outside via a second fan box, a central supply air pipe and poppet valves in the reverse direction. A control system ensures that the ventilation is only activated when ventilation conditions are optimal.

Single-pipe ventilation systems with humidity sensor are ideal for these tasks. They provide efficient venting in the event of momentarily high humidity and activate automatically in normal operation above a certain humidity threshold. This saves a lot of energy. If the room is located in the basement, it can also be integrated into a centrally controlled basement ventilation system, which also ensures optimal and efficient moisture removal.

The control of a central ventilation system has different functions depending on the specific design. In the AirClean system, the central fresh air supply and several decentralized exhaust air units, such as the Limodor F/M single-pipe fans, are controlled in an optimally coordinated manner for base load operation by a control element mounted in the electrical control box. Demand ventilation, party mode or summer mode are also set via the central control. Exhaust air elements are additionally individually controllable in each room. They can, for example, be switched from base load to full load for a short time in the bathroom by means of a humidity sensor or in the toilet by means of a motion sensor and thus quickly perform their respective ventilation task.

A special case is the AirBase basement ventilation: Here, the controller receives measurement signals from humidity and temperature sensors located in the basement and outside. Depending on these signals, cellar drying is activated when conditions are optimal. But even here, for example with the Limodor F/M-EC single-pipe ventilation system with humidity module, the humid air surge of a sauna can be quickly extracted at full capacity. Mold growth and basement moisture are optimally prevented by this combination of energy-saving base load operation and short-term demand ventilation at full load.

In times of scarce and expensive living space, the basement is increasingly coming into focus as an additional reserve of space. For example, for the home office, but also for a sauna or a fitness room. A well-known problem even in modern houses: Especially in summer, mold or musty smells often form on the cool basement walls due to condensation of moist warm outside air. Simple ventilation is of no use here, it often even aggravates the situation.

The AirBase basement ventilation system therefore works sensor-controlled. Humidity and temperature inside and outside are measured. A smart control unit ensures that only dry outside air enters the house. Humid or odorous indoor air is extracted. This provides optimal cellar drying. Sauna ventilation can also be integrated. Mold protection is thus guaranteed, as is full flexibility in design and operation analogous to residential ventilation.

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.