x-well® decentralised domestic ventilation
Installed retrospectively or planned right from the start. Decentralised residential ventilation systems can be installed specifically in the individual rooms. This can be done with little effort and is therefore not only possible for new-builds, but also retrospectively for renovations. Uncomplicated, cost-effective, maintenance-friendly. Good thermal comfort with the lowest possible energy costs – with x-well decentralised residential ventilation you have found the perfect solution for new or old buildings. The small ventilation systems are installed separately for each room. In the case of renovations, this can be done quickly and without great effort by drilling a core hole through the outer wall. In new buildings, there are special installation bricks for this purpose or, as another elegant alternative, integration into the window reveal. In any case, this ensures that there is fresh air in every room. With pleasant appearance inside, visible from the outside only as an inconspicuous ventilation grille.
The outer panels blend perfectly into the look of any house.
Awarded with 
Benefits of x-well decentralised residential ventilation
- Both for renovation and for new-builds
- Low noise input from the outside (high sound insulation)
- Not much planning required and quick to install
- Thanks to permanent ventilation the fabric of the building is preserved and mould prevented
- Cost-effective to install and maintain
- Simple and uncomplicated cabling
- Filtered air and therefore particularly good for people with allergies
- Easiest maintenance
Pendulum fan x-well® D13 / D12 / D11
For ventilating apartments and houses.
With continuous air exchange and filtered air, decentralised residential ventilation ensures healthy, pleasant thermal comfort and sustainable protection of the building fabric. Low-noise operation and equipped with effective heat recovery. Simple, fast, and cost-effective to plan, install, and maintain. Ideal for renovations due to its design without ventilation ducts.
- Minimal planning effort required, simple to install
- With permanent ventilation, the fabric of the building is preserved better and mould prevented
- Cost-effective to install and maintain
- Filtered air and therefore particularly good for people with allergies, increasing the feel-good factor through fresh air
- Available as a window soffit version
- An installation brick is available for simple installation in the building shell
x-well® D13
The design inner panel made of plastic with a closing flap and a filter ensures optimal and low-noise air flow.
Reversible axial ventilator (change of direction of flow) and pre-heat exchanger made of special plastic ensures efficient and quite air exchange.
Ceramic heat exchanger with highly efficient honeycomb structure for the best heat recovery of 87 % according to EN 13141-8.
The outer panel is available in stainless steel, white, and in anthracite and ensures optimal flow of the air in both directions.
Characteristics
- No wiring required between the fans
- Operation via smartphone is possible
- A constant air volume even in high wind pressure, thanks to optional sensor technology
- Demand-regulated control via optional VOC, humidity, and temperature sensor
- No volume flow reduction when using a silencer
- Can also be used for thin walls from 20 cm.
- Energy efficiency class A (CTRL = 1), with sensor system A+
x-well® D12
The design inner panel with its glass surface ensures optimal, low-noise flow of the air.
Filters prevent dust being carried in and the ceramic body getting dirty.
Reversible axial ventilator (change of direction of flow) ensures efficient and quite air exchange.
Ceramic heat exchanger with large surface thanks to honeycomb structure for 82 % heat recovery according to EN 13141-8.
The outer panel is available in stainless steel and in white and ensures optimal insulation of the ambient noises
Characteristics
Intelligent BUS communication which means that no star-shaped wiring is required
Different versions of the control elements available
Energy efficiency class A (CTRL = 1), with sensor system A+
x-well® D11
The design inner panel ensures optimal, low-noise flow of the air.
Filters prevent dust being carried in and the ceramic body getting dirty.
Reversible axial ventilator (change of direction of flow) ensures efficient and quite air exchange.
Ceramic heat exchanger with large surface thanks to honeycomb structure for 81 % heat recovery according to EN 13141-8.
The outer panel is available in white and ensures optimal absorption of the ambient noises.
Characteristics
- Star wiring, up to 4 fans can be connected per control
- Different versions of the control elements available
- Up to four devices can be connected to one control element
- Cost optimised construction
- is ideal for the housing sector
- Energy efficiency class A (CTRL = 1), with sensor system A+
| Pendulum fan | x-well D13 | x-well D12 | x-well D11 |
| Wiring | no wiring required between the fans | ventilators easy to wire up by using star-shaped connections and/or in series | star-shaped wiring required |
| maximum number of ventilators | per residential unit/floor 35 units per MESH | unlimited per residential unit / floor, max. 6 fans per power supply unit (cables with min. 4 wires) | max. 4 fans can be connected to comfort control, Easy control has two connections, with on-site wiring up to 6 fans can be connected (cable with min. 3 wires) |
| Control | Operation via smartphone is possible | Demand-driven control according to local demand possible, with LED control and touch control | Demand-driven control possible, with comfort control |
| Power supply unit | Flush-mounted power supply unit and top-hat rail power supply unit available | Flush-mounted power supply unit and top-hat rail power supply unit available | Flush-mounted power supply unit available |
| Panels | With glass design internal panel | With glass design internal panel | With plastic design internal panel |
| External cover | Design external cover made of metal in white, in stainless steel, or in anthracite | Design external cover made of metal in white or stainless steel | With plastic design external cover |
| Benefits | Meets highest requirements regarding energy efficiency and comfort | Meets highest requirements regarding energy efficiency and comfort | Meets high requirements for energy efficiency and comfort |
x-well® A21 / A20 single-pipe fan
Ideal for all extract air rooms.
In bathrooms, WCs, and all extract air rooms, x-well single-pipe fans reliably ensure that used and humid air is transported to the outside. The fans run extremely smoothly and quietly. Through different versions and combination options, they offer ideal solutions for all requirements.
- Quick and easy unit installation: no tools required with snap locks and electrical plug connectors
- Small depth – suitable for confined spaces
- Convertible plastic outlet nozzle with automatic check valve for variable installation
- High compression capability – ensures constant supply volume while operating several fans at the same time
Installation situation x-well A20 / A21
x-well® A21
The single-pipe fan is designed for decentralised ventilation of individual rooms. Thanks to the intelligent design, one fan can be used for many different applications. The EC motors technology used ensures a high efficiency and the lowest acoustic emissions.
Characteristics
- The robust EC motor has double-sided closed ball bearings, needs very little energy, and has thermal overload protection.
- The fan is designed to be run at slow speeds and runs extremely smoothly and quietly as a result.
- The fans are installed without tools using snap locks and plug connectors.
- High compression capability ensures constant supply volume while operating several fans at the same time.
- Clear product portfolio, low storage capacities, and high flexibility as a result.
- Various functions can be illustrated through the choice of cover.
x-well® A20
The single-pipe fan is designed for decentralised ventilation of individual rooms. Can be used for many applications thanks to the wide variety of versions.
Characteristics
- Ventilation with and without fire-resistant shaft according to DIN 18017-3
- The fan is designed to be run at slow speeds and runs extremely smoothly and quietly as a result
- The fans are installed without tools using snap locks and plug connectors.
- High compression capability
- Various functions can be illustrated by selecting the fan type
- Different flush-mounted housings to meet a wide range of requirements
- DIBt-certified (German Institute for Civil Engineering)
x-well® A12 small room fan
Ideal for bathrooms, WCs, and kitchens.
For decentralised ventilation right through the outer wall of individual rooms. Ideal for bathrooms, WCs, and kitchens. Particularly quiet and with low power consumption due to innovative EC motor technology.
- Quick and easy unit installation
- Small size – suitable for confined spaces
- Simple, convenient, and effective version of an exhaust fan
x-well® A12
The small room fan is ideal for bathrooms, WCs, kitchens, and every other room – with innovative EC technology.
Characteristics
- Quiet and low power consumption thanks to state-of-the-are EC technology
- 2 versions – time control and humidity/time control available
- Available in the set – fan, wall sleeve, and weather protection grate
- Additional base load can be activated
- Integrated check valve
x-well® ALD12 / ALD11 outer wall vent
For a natural supply air replenishment in decentralised systems.
The cost-efficient and simple solution for the realisation of ventilation concepts. They ensure a natural flow of supply air into the rooms. With high sound insulation, low planning effort, simple installation, and easy maintenance.
- Highest possible sound insulation in their class (additional sound absorption elements and window soffit dB+)
- Minimal planning effort required, simple to install and easy to maintain
- improved preservation of the fabric of the building and prevention of the formation of mould
x-well® ALD13
Characteristics
- The outside air vent with design inner cover, with integrated ISO coarse filter 60% (G4) and shutter.
- Sound absorbing ventilation – highest possible sound insulation in its class (additional sound absorption elements and window soffit dB+)
- If the correct wiring has been taken into consideration, it can be retrofitted to become a system with heat recovery.
- Cost-effective and simple system for the realisation of a ventilation concept.
- Ideal interaction with single-pipe fans and small room fans.
- Integrated wind pressure protection against a cooling of living spaces in high winds.
- Filtering of the outside air
- Noise insulation ring with 3 chambers for minimal pressure losses, highest sound insulation, and volume flow adjustment.
- Available with internal design glass panel and external cover in white and stainless steel
x-well® ALD12
The outside air vent is available as a design version with an internal glass panel.
Characteristics
- Sound absorbing ventilation – highest possible sound insulation in its class (additional sound absorption elements and window soffit dB+)
- If the correct wiring has been taken into consideration, it can be retrofitted to become a system with heat recovery.
- Cost-effective and simple system for the realisation of a ventilation concept.
- Ideal interaction with single-pipe fans and small room fans.
- Integrated wind pressure protection against a cooling of living spaces in high winds.
- Filtering of the outside air
- Noise insulation ring with 3 chambers for minimal pressure losses, highest sound insulation, and volume flow adjustment.
- Available with internal design glass panel and external cover in white and stainless steel
x-well® controls
x-well® ALD11
The outside air vent is available with a plastic design outer hood.
Characteristics
- Sound absorbing ventilation – highest possible sound insulation in its class (additional sound absorption elements and window soffit dB+)
- If the correct wiring has been taken into consideration, it can be retrofitted to become a system with heat recovery.
- Cost-effective and simple system for the realisation of a ventilation concept.
- Ideal interaction with single-pipe fans and small room fans.
- Integrated wind pressure protection against a cooling of living spaces in high winds.
- Filtering of the outside air
- Noise insulation ring with 3 chambers for minimal pressure losses, highest sound insulation, and volume flow adjustment.
Bluetooth button for x-well D13
The Bluetooth button for x-well D13 is available in two versions, battery or mains operation. For easy operation of the x-well D13 ventilation system with the basic functions. Commissioning using a smartphone APP (iOS, Android) is possible.
Features:
- heat recovery/ventilation
- four levels
- housing economy mode
- sleep mode
- battery and mains version available
- can be integrated in the switch range
LED control for x-well D12
For controlling several x-well D12 reciprocating fans. The LED control can be integrated in conventional switch systems using an on-site adapter ring.
Menu function:
- Eco-mode (heat recovery mode) selectable
- Aeration mode selectable
- Fan speeds can be adjusted using the arrow buttons
- Filter replacement indicator available
Touch control for x-well D12
For controlling several x-well D12 reciprocating fans with touch screen. The touch control can be integrated in conventional switch systems using an on-site adapter ring.
Menu function:
- Mode display (display of the active mode and the fan speed)
- Fan speed (up/down arrow buttons)
- On/off button
- Eco-mode (heat recovery mode) selectable
- Aeration mode selectable
- Sleep mode, summer mode, party mode, shock ventilation mode, automatic mode, time mode, holiday mode available
- Filter status display available
- Group selection for separate activation
- Control locking option provided
Smart Control for x-well D11 and D12
The control element is compatible with the x-well D11 and D12 pendulum fan systems. Operation via smartphone is possible (Android and iOS). Only one Smart Control can be integrated in a WiFi network!
Comfort control for x-well D11
For controlling several x-well D11 reciprocating fans with integrated humidity sensor including power supply unit. Connection of max. 4 fans.
Menu functions:
- Eco-mode (heat recovery mode) selectable
- Automatic mode selectable
- Aeration mode selectable
- Sleep mode selectable
- Fan speeds can be adjusted using the arrow buttons
- Filter replacement indicator available
Easy control for x-well D11
For the control of several x-well D11 reciprocating fans with power supply unit included. Connection of max. 4 fans.
- Eco-mode (heat recovery mode) selectable
- Aeration mode selectable
- Sleep mode selectable
- Fan speeds can be adjusted using the adjusting knob
- Filter replacement indicator available
5 year system warranty
Finally the new Kermi heating system has been installed. Or the Kermi ventilation system. Nothing left to stop you feeling cosy at home. With our 5-year system warranty, we are happy to prove the quality of our products and our service promise to you.
Just three steps to a 5 year system warranty:
1. Have the Kermi system installed by a specialist company
2. Have Kermi Customer Service commission the system (or in the case of ventilation systems, a specialist company)
3. Annual servicing by Kermi Customer Service or by a specialist company
Residential ventilation advice
What residential ventilation is the right one?
Whether it’s a single-family house or an multi-family house, a new-build or a building that has been modernised for energy efficiency – controlled residential ventilation provides fresh air and healthy thermal comfort. Either centralised or decentralised ventilation systems are suitable. This guide will provide you with an overview as to which residential ventilation system is suitable for which building and should help you choose one.
This is how important controlled residential ventilation filters are
Controlled residential ventilation continuously supplies living spaces with fresh air. The filters – outside air filters and extract air filters – play an important role here. What quality filters do you need? How often do the filters need to be replaced?
More information on filters for controlled residential ventilation
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