Building services module
CWL-T-300 Excellent

This mechanical ventilation unit has been specially designed for use with the WOLF compact building services centre. It can be freely combined with WOLF oil and gas condensing boilers, as well as with WOLF heat pumps. This means you have just one compact,

The CWL-300-T Excellent building services module is a central ventilation unit that continuously exchanges the used air in your home for fresh, filtered and preheated air. The integrated heat recovery system uses extract air to preheat the supply air. However, the two air flows do not come into contact with each other during this process, since the heating occurs via two separate ducts routed next to each other, called a heat exchanger.

As a tower solution combined with a gas or oil condensing boiler or a heat pump, the CWL-T-300 Excellent is a compact building services centre that allows you to keep your home optimally supplied with heat, hot water and fresh, pollen-free air. Selecting the combination with a split heat pump gives you the extra option of gently cooling your home with underfloor heating.

  • Short Info
  • Specification

The ventilation component of your WOLF building services centre ventilates your home in conjunction with an advanced condensing boiler or a split heat pump.

The CWL-T-300 Excellent is a centrally controlled ventilation system equipped with heat recovery that is designed to be part of a compact building services centre. Take advantage of the benefits of heat recovery, which continuously transports stale air out of your home whilst supplying fresh, filtered and preheated outdoor air into the building.

  • The modular design of the CWL-T-300 Excellent building services module makes it perfect for combination with a WOLF BWL-1S, CGS-2 or TOB heating system to create a compact building services centre
  • The removable plastic countercurrent plate heat exchanger used for heat recovery is easy to clean
  • Virtually all of the heat is transferred from the extract air to the supply air – reducing your heating costs
  • The system includes an integral 1000 W electric preheating coil
  • Fine mesh filters are available as an optional accessory and ensure that only fresh, filtered air completely free of pollen enters your home
  • The system is controlled using the intuitive BM-2 programming unit
  • Automatic frost protection control provides maximum comfort and energy efficiency, even at low outdoor temperatures
  • Ideal for rooms with limited space – can be installed directly against the wall or in a corner 
technical drawing
Model / Performance
  • CWL-T-300 Excellent
Please choose model
Building services module CWL-T-300 Excellent
Model type CWL-T-300 Excellent


Air handling rate in qm³/h


General Info

Installation type

Zentral, Standgerät (Tower)

Application area

Central ventilation unit x
Decentralised ventilation unit -

Living space

Up to 150 m² x
Up to 250 m² x
Up to 300 m² -

Installation location

Wall x
Ceiling -

Combination with

Wall mounted gas boiler x
Oil condensing x
Heat pump x

Passive cooling with night air


Active air heating via preheating coil (type, in watts)

elektrisch, ... kW, Heizungswasser, ... kW

Ready for humidity and CO2 sensor



Height (mm) 1287,5
Width (mm) 475
Depth (mm) 586



G4 coarse dust filters


F7 pollen and spore filters


WOLF SmartSet Ready


wiButler ready

Ab Q4 2016


Having fresh air in the rooms in your home is important for your family's wellbeing. It goes without saying that regular air changes are indispensable.

Unfortunately, fresh air is not always the same thing as clean air. If you ventilate through open windows, the air you breathe may be contaminated with pollen, spores, fly ash, particulates or other pollutants, depending on where your home is located. The CWL-T-300 Excellent building services module creates a healthy and fresh indoor environment in your home. And you also save heating energy, because the integrated heat recovery system returns heat from the extract air to the supply air.

Select the combined heating appliance you need based on the fuel type in your home. Choices include the CGS-2 or TOB oil and gas condensing boilers and the BWL-1S heat pump. If you decide in favour of a split heat pump, you also have the option of providing your home with gentle cooling. A compact approach that will simplify your life.

Whether you're looking at heating, ventilation or cooling

Whether you're looking at heating, ventilation or cooling – at WOLF we are only satisfied when all these elements come together to provide you with an indoor environment where you can truly relax. We want technology to fit around you, not the other way round.
And because your requirements may change over time, we offer you full control of your heating system, DHW temperature and air change rates with our user friendly devices, intuitive apps, and SmartHome enabled programming units –so your living zone is also your comfort zone.


Kaum etwas ist für Ihr Wohlbefinden so wichtig wie das optimale Raumklima. Genießen Sie diese neue Lebensqualität und registrieren Sie sich online für unsere 5 Jahre Garantie.

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