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Expert knowledge on ventilation, heating and building services, clearly explained by our specialists.

Weit geöffnetes Fenster mit wehendem Vorhang, daneben an der Wand ein dezentes Lüftungsventil, Ratgeber fenster lüften oder lüftungsanlage
11. August 2026 · Lüftung

Window Ventilation vs. Ventilation System: An Honest Comparison

Window airing or ventilation system? We honestly compare costs, heat loss, moisture protection and comfort ...

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Handwerker setzt ein rundes dezentrales Lüftungsgerät in eine Kernbohrung in der Außenwand, Ratgeber dezentrale lüftung nachrüsten
8. August 2026 · Lüftung

Retrofitting Decentralized Ventilation: Step-by-Step Installation

Retrofitting decentralized ventilation made easy: how installation with core drilling works, what heat reco...

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Moderner weißer Luftentfeuchter in einem Wohnraum, sichtbarer Wassertank, Ratgeber luftentfeuchter sinnvoll
5. August 2026 · Raumklima

Dehumidifiers: When They Make Sense and What to Look For

Is a dehumidifier worth it or just a power guzzler? When a unit pays off, condensation vs. desiccant dehumi...

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Kleines Luftqualitätsmessgerät auf einem Schreibtisch im Homeoffice, abstrakte Anzeige ohne Zahlen, Ratgeber co2 raumluft grenzwerte
2. August 2026 · Raumklima

CO2 Indoors: When Does the Air Become Unhealthy?

Which CO2 limit values apply to indoor air, when the air becomes unhealthy and how to measure and permanent...

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Techniker nimmt Filter aus einem geöffneten Split-Klimagerät, sauberer Arbeitsplatz, Ratgeber klimaanlage warten
30. Juli 2026 · Klima

Air Conditioner Maintenance & Cleaning: Guide for Split and Portable Units

Air conditioner maintenance and cleaning made easy: how to care for the filters, evaporator and condensate ...

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Gekipptes Kellerfenster mit Sonnenlicht, feuchte Kellerwand mit Kondenswasser, Ratgeber keller lüften sommer
27. Juli 2026 · Lüftung

Ventilating the Basement in Summer: Why the Wrong Approach Causes Mold

Why ventilating the basement in summer often causes mold, and how to reliably prevent damp walls with the r...

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Analoges Hygrometer auf Holztisch, dahinter helles Wohnzimmer mit Pflanzen, Ratgeber optimale luftfeuchtigkeit wohnung
24. Juli 2026 · Raumklima

Optimal Humidity in Your Home: Ideal Levels for Every Room

Which humidity level is ideal? This guide shows the optimal values for each room, the consequences of air t...

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Verschiedene Ventilatortypen nebeneinander arrangiert, cleanes Studio-Setting, Ratgeber ventilator arten
21. Juli 2026 · Lüftung

Fan Types at a Glance: Axial, Centrifugal, Tower & Ceiling

Axial, centrifugal, tower or ceiling? This guide explains the most important fan types, their strengths in ...

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Split-Klimagerät an Wohnzimmerwand, davor unscharf eine Hand mit Fernbedienung, Ratgeber klimaanlage stromverbrauch
18. Juli 2026 · Energie

Air Conditioning: Cut Power Consumption and Still Stay Cool

How much electricity does an air conditioner draw, and how can you reduce its power consumption? SEER, inve...

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Abgedunkeltes Wohnzimmer im Hochsommer, Standventilator, Sonnenlicht hinter hellem Vorhang, Ratgeber wohnung kühlen ohne klimaanlage
18. Juli 2026 · Klima

Cooling Your Home Without Air Conditioning: 12 Methods That Really Work

Cool your apartment without air conditioning: 12 proven methods, from proper ventilation and fans to shadin...

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Mobiles Klimagerät und Split-Innengerät nebeneinander in einem hellen modernen Wohnzimmer, Ratgeber mobile klimaanlage oder split
7. Juli 2026 · Klima

Portable vs. Split Air Conditioner: Which Is Really Worth It?

Portable air conditioner or permanently installed split air conditioner? We compare efficiency, electricity...

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Zentrale Lüftungsanlage mit Rohrverteiler im Technikraum, zentrale vs. dezentrale Lüftung im Vergleich
30. Juni 2026 · Lüftung

Central vs. Decentralized Ventilation: Which Is Better?

Central or decentralized ventilation with heat recovery? The honest comparison of costs, efficiency and 202...

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Recommendations

From our range

Selected products from ventilation, filter and pipe technology.

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Why Wohnungstechnik.de

Your Partner for Ventilation, Heating, Solar & Pipe Systems

Selected manufacturers, verified quality and personal advice, everything from a single source for your home.

Fachhandelsqualität
1

Specialist-Retail Quality

We rely on selected manufacturers and verified quality. Whether heating, plumbing or ventilation , with us you will find durable products in specialist-retail quality.

Beratung & Service
3

Advice & Service

With many years of experience in the field of home technology we know our customers needs. Our team offers well-founded advice and helps find the optimal solution for your home.

Brand Partners

Partner Network with Leading Companies

Working with leading manufacturers, reliable quality from planning through the product to service.

Knowledge & Guide

Frequently Asked Questions

Everything important about home technology, answered concisely.

What is meant by home technology?

Home technology, also known as building services or Technical Building Equipment (TGA), covers the systems that provide and control heat, air and water in a building. This includes heating and solar technology (e.g. heat pumps), ventilation (e.g. ventilation systems and air filters) as well as plumbing and pipe systems. Measurement and control technology or a smart home system regulates the installations automatically.

What benefits does modern home technology offer?

Modern home technology offers owners and tenants, among other things:

  • Heat recovery: ventilation systems with a heat exchanger use the warmth of the exhaust air to preheat the supply air
  • Healthier indoor climate through ventilation systems and air purifiers
  • Comfort & safety thanks to intelligent control systems (smart home)
  • Increased property value through modern technical equipment
Which products belong to home technology?
How do I find the right home technology for my home?

The right choice depends on various factors:

  • Apartment size and building type
  • Energy demand and insulation standard
  • Budget and funding options (e.g. for heat pumps or ventilation systems)
  • Individual requirements, such as operating costs, space requirements and noise level of heating systems

Tip: At Wohnungstechnik.de you will find over 3,500 products, expert articles in our guide and personal advice via our contact form.

Which home technology is subsidised by the government?

Many areas of modern home technology are subsidised in Germany through government programmes such as BAFA and KfW. Particular focus is on:

  • Heat pumps: grants for replacing old heating systems
  • Solar systems: funding for photovoltaics and solar thermal
  • Ventilation systems with heat recovery

Whether funding is available and how much depends on the specific programme and project. More information in the guide and directly in the shop.

What is a controlled domestic ventilation system and when is it worthwhile?

A controlled domestic ventilation system (KWL) automatically exchanges stale indoor air for fresh outdoor air, without any need to open windows. Systems with heat recovery use the warmth of the exhaust air to preheat the supply air, saving heating energy. A KWL is especially worthwhile in new builds and renovated buildings with an airtight envelope, for allergy sufferers (pollen filters) and to prevent mould caused by excessive humidity.

How often should air filters in ventilation systems be replaced?

As a rule of thumb: check filters every 3 to 6 months and replace them depending on how dirty they are, but no later than after 12 months. In environments with high dust or pollen levels, more frequent replacement can make sense. Dirty filters reduce air quality, increase energy consumption and strain the system. Suitable replacement filters of all classes, from bag & compact filters to fine-dust filters (ePM1), are available directly in our shop.

What is an air pressure switch and when is it mandatory?

An air pressure switch monitors the air pressure in rooms where a fireplace (e.g. a chimney or wood stove) is operated together with an extraction system (e.g. a range hood or ventilation system). It prevents dangerous negative pressure that could draw toxic flue gases into the living space. In many cases, the chimney sweep requires an air pressure switch with DIBt approval so that the joint operation of a fireplace and extraction system is permitted.

Wohnungstechnik: Beratung zu Klima, Lüftung und Heizung
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