Description
Decentralised ventilation market Germany: single-room unit sales in thousand units and forecast to 2031
How is the decentralised ventilation market in Germany developing? The dataset provides domestic sales of single-room ventilation units with heat recovery in thousand units per quarter, continuously from Q1/2021 to Q4/2031 – as historical market data and forecast.
A single-room unit sits in a core-drilled hole in the external wall and ventilates one room. Usually two units work in push-pull mode: one draws air in, the other blows it out, while a ceramic store captures exhaust heat for the incoming air. Continuous units with a heat exchanger also exist. Excluded are central systems, bathroom and WC fans without heat recovery, window rebate vents, wall air inlets and mobile air purifiers.
Renovation is the main trigger: after window replacement a flat becomes airtight, air exchange collapses and damp and mould threaten. Needing no ductwork, units are retrofitted room by room at lower cost per flat than a central system. In new build they are a low-cost alternative, especially in apartment blocks. With new build and renovation contributing equally, the market is more robust than central systems; an earlier downturn came mainly from slumping renovation. Rising equipment rates support the forecast.
Which questions about the decentralised ventilation market does the dataset answer?
- How have single-room unit sales developed since Q1/2021, and how strongly do they recover?
- What do new build and renovation each contribute over time?
- What volumes go into non-residential buildings?
- In which quarters does demand arise?
Who is the dataset for?
Manufacturers of single-room units, heat storage cores and fans plan production and ranges. Electrical, ventilation and window contractors gauge retrofit potential, while housing companies assess ventilation after window replacement. Wholesalers, planners and analysts follow competition with central systems.
Data basis and methodology
The time series is broken down into new build and renovation of residential and non-residential buildings, plus a total. Completions, permits and modernisation activity are linked to dwellings per floor area, several units per equipped dwelling and the share of equipped new dwellings or yearly retrofits in existing homes. The model was cross-checked against available market and industry data as well as internal data.
Delivered as CSV and Excel files, each in German and English, with 44 quarterly values. Related datasets: Central ventilation with heat recovery, Split air conditioner / air-air heat pump, Heat pump air-water (monoblock) and all data on heating, ventilation, air conditioning and energy.





