Decentralised heat recovery units for a single room: Why choose the Recuair DC40 unit?
Are you looking for a way to ensure fresh air in your bedroom or living room without having to open windows and let precious heat escape? The RECUAIR DC40 decentralized ventilation unit for a single room is the ideal solution for renovations and new buildings where there is no space for complex ductwork. The Recuair DC40 ventilation unit is the leader in this category, combining design, quiet operation, and high efficiency.
What is a decentralized ventilation unit and how does it work?
Unlike central systems that serve the entire house, this ventilation unit is installed directly into the perimeter wall of a specific room. It works on the principle of heat recovery: polluted and humid air from the interior heats fresh air supplied from outside in the exchanger. The result is a constant supply of oxygen while maintaining thermal comfort.
Main advantages of the Recuair DC40 model:
- Ideal heat recovery for a single room: Perfect for solving humidity problems in critical areas of the house, such as bedrooms or children's rooms.
- No more mold and stale air: The unit automatically monitors humidity levels (and CO2 in the Premium version).
- Extremely quiet and economical operation: Thanks to its precise design, it will not disturb your sleep, and its energy consumption is comparable to that of an energy-saving light bulb.
- High efficiency: This decentralized heat recovery system returns up to 94% of the heat that would otherwise escape through an open window back into the room.
Technical parameters: Performance in a compact package
The Recuair DC40 is not just an ordinary fan. It is a sophisticated ventilation unit designed to continuously ventilate spaces up to 40m2.
|
Key parameter |
Value |
|
System type |
Local/Decentralized heat recovery unit for one room |
|
Exchanger efficiency |
88 – 94 % |
|
Air flow volume |
15 – 50 m³/h |
|
Warranty |
5 years (if installed by a certified company and service intervals are observed) |
Why is Recuair DC40 the best choice for your home?
If you are considering which ventilation unit is right for you, Recuair DC40 stands out primarily for its design. Unlike cheaper ceramic "alternating" recuperators, Recuair uses an equal pressure system. This means that air flows in and out simultaneously, eliminating unpleasant pressure surges and increasing ventilation comfort.
How does the RECUAR ventilation system work?
The exchanger, which is installed directly into the wall, continuously removes stale air and simultaneously supplies fresh air to the interior through a filtration system. In addition, the smart unit does not cool the air inside in winter or heat it in summer, with an efficiency of up to 94%. Ventilation is therefore very efficient, without heat or energy loss. What's more, the units are able to maintain optimal humidity.
Worry-free installation
Installing this decentralized heat recovery system in a single room is surprisingly easy. It is done entirely from the inside of the building, so you don't need scaffolding or high-altitude workers. All you need is one hole in the wall and a connection to the electrical network.
Did you know that... the right ventilation unit can reduce the concentration of radon and other harmful substances in the interior? In this respect, Recuair DC40 is your best ally for healthy sleep.
Is it possible to install the RECUAIR DC40 ventilation unit in apartment buildings?
RECUAIR DC40 heat recovery units are ideal for apartment buildings: easy to install from the inside, no problems even with insulated facades, and no noise or condensation to disturb your neighbors.
Send us a floor plan of your apartment and a few photos, and we will design the optimal solution for you.
Get a healthy climate today
Don't wait until mold starts appearing in the corners. The Recuair DC40 decentralized heat recovery unit is an investment that will pay for itself in the form of lower gas and electricity bills and, above all, better health for your whole family.
Clean air without allergens and dust: Top-quality filtration
One of the main reasons why the Recuair DC40 ventilation unit is so popular is its ability to actively clean the air coming in from outside. While ventilating through a window lets in dust, soot from traffic, and aggressive pollen in the spring months, this decentralized heat recovery system for a single room acts as an effective shield for your lungs.
The unit is equipped with Coarse 80% (G4) and ePM10 50% (M5) filters as standard. These safely capture:
- Coarse dust and airborne impurities
- Most common types of pollen (especially appreciated by allergy sufferers)
- Insects and small particles that would otherwise pollute your interior
Optional protection against smog and odors
For residents of cities or areas where neighbors still rely on solid fuels, the Recuair DC40 offers the option of installing activated carbon filters. This type of filtration can eliminate unpleasant odors from outside and significantly reduce the concentration of harmful gases and fine smog (PM2.5 particles). Your home will remain an oasis of cleanliness even in the middle of a busy city.
Easy maintenance and filter replacement
Regular maintenance is necessary to ensure that decentralized heat recovery unit remains effective and hygienic in the long term. With the Recuair DC40 ventilation units, however, this process takes only a few seconds. The unit itself will notify you when the filters need to be checked (usually once every 3 to 6 months, depending on the dustiness of the environment).
- No tools required: The filters are easily accessible after removing the inner cover
- Low cost: Replacement filter sets are affordable and can be replaced by any user without the need to call a service technician

Types of exchangers in the RECUAIR DC40 unit:
RECUAIR DC40 HRV - suitable for excessively humid rooms where there is no frost. It operates at temperatures from -10 °C to 45 °C and does not contain active frost protection, suitable for bathrooms or basements
RECUAIR DC40 ERV - a solution for extremely dry indoor air, it can restore humidity to optimal levels, operates at temperatures from -15 °C to 45 °C, suitable for bedrooms and offices
RECUAIR DC40 POLAR - low energy consumption and the ability to operate in extreme frost. Trouble-free operation from -17 °C to 45 °C
RECUAIR DC40 unit designs:
HRV - humid household
ERV - classic household, which addresses noise and fresh air
Basic - no CO2 sensor, no automatic mode
Premium - equipped with a CO2 sensor and ventilates automatically based on CO2 values = monitors freshness
Data sheet: RECUAIR DC40 - technical data sheet
