- A perfect indoor climate - once and for all
- How to discover problems with the indoor climate
- Causes of indoor air problems
- Health and well-being with home ventilation
- A perfect indoor climate with home ventilation
- Heat recovery home ventilation - product descriptions
- Connection to Building Management System
How you discover problems
with the indoor climate
Take care of your house and your family's health!
We spend almost 90% of our time indoors. Therefore the air quality in our house has a great impact on our well-being and comfort. A good and sound indoor climate with fresh and clean air affects us positively. We feel better and have more energy.
Bad indoor climate
A poor indoor air quality occurs when we do not air out our house as often as we should (2-3 times a day for 10 minutes). Some of the most visible signs are moisture and dew on the windows and at worst, moisture damage, which can lead to rot and mold in the home.
Poor indoor air can cause sleep problems, headaches, nausea and concentration difficulties and not least it can lead to serious health problems with asthma and allergies.
In recent years, the authorities have steadily tightened the requirements for energy consumption in new houses. This means that many houses are so airtight and without natural ventilation that you get serious problems with moisture, if you do not air out the house frequently.
First, it affects the family's well-being and health because a high humidity increases the incidence of dust mites and mold. Later it affects the building itself being attacked by rot and mold.
A demand-controlled mechanical ventilation system with heat recovery from Dantherm keeps the humidity level in your home constant all year round.
How to discover the problems:
Check the relative
A digital hygrometer can easily and accurately reveal if the relative humidity in your house is too high. The relative humidity should be kept below 45% RH, if you want to avoid dust mitres.
Dewfall on the
A sure sign of too high relative humidity is dewfall on the inner side of double-glazed windows when it is cold outside. The relative humidity is too high if you have more than 1 cm of dewfall along the window frames.
Look for mould stains around the ventholse and mould formation in the joints between tiles in the bathroom. These are signs of insufficient ventilation in the bathroom, and it may be an indication of high humidity thoughout the house.
Loosened wallpaper. Discoloration, stains or obvious mould growth. These are all clear signs of too high humidity. It is particularly important to look behind cabinets and furniture standing against the wall. Peeling of plaster and paint may also be cause by too high humidity. The same applies to salt redemptions and porous or loose surfaces on the wall.
What does the house smells like? -Ask your friends if they think that the house has a musty cellar-like smell. Because you might already be used to the bad smell. Doors or drawers that jam can also be a danger signal. Just like lumping washing powder, salt, flour etc. indicate problems.
It is so easy
A perfect indoor climate
Wall mounted or loft mounted
The HC range of home ventilation units are certified for use in passive houses by the German Passive House Institute.
Click to read cases