Stopped Ventilation and the Feeling of Cold Indoors
When severe frosts arrive, many homeowners face an unexpected problem. If the outside temperature drops below -10°C, standard plate heat recovery units without additional protection begin to freeze. To protect itself, the unit's automation stops the fresh air supply and attempts to defrost the heat exchanger using extracted indoor heat.
This process causes serious discomfort for the whole family. The home suddenly lacks fresh air, moisture starts to build up, and when the system turns back on, an unpleasant cool draft may be felt from the ceiling diffusers. Cold drafts not only reduce the quality of life but also force you to heat the rooms more, wasting additional energy.
A Steady Flow of Warmth and Freshness Without Interruptions
By integrating the right air heaters, your ventilation system becomes immune to any weather whims. A primary electrical heater prevents the frost from reaching the heat recovery core, so the system operates without the slightest interruption. You will not even notice that a blizzard is raging outside – the air in your home will be continuously refreshed.
Secondary heaters elevate comfort to the highest level. They ensure that the air flowing from the ducts is exactly the same temperature as the room environment. You can confidently place a bed or a desk directly under a ventilation vent without fear of catching a cold, and the smart HRV automation will only engage the heaters when truly necessary.
Uninterrupted operation at -25°C – a properly selected pre-heater guarantees that the ventilation system will not stop supplying oxygen even on the harshest winter nights.