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Expert knowledge on ventilation, heating, and building technology – clearly explained by our experts.

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

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

Axial, radial, tower, or ceiling? This guide explains the main types of fans, their strengths in airflow an...

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

Air conditioning: Reduce power consumption and still stay cool

How much electricity does an air conditioner consume – and how can you reduce its power usage? SEER, invert...

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

Cooling your apartment without air conditioning: 12 methods that really work

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

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

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

Mobile air conditioner or permanently installed split air conditioning system? We compare efficiency, elect...

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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? An honest comparison of costs, efficiency, and sub...

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Innenliegendes Bad ohne Fenster mit Wandventilator gegen Feuchtigkeit und Schimmel
12. Juni 2026 · Bad

Ventilating a Bathroom Without Windows: Obligations, Solutions, Costs

A bathroom without windows absolutely requires mechanical ventilation – that's mandatory. Which regulations...

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Handwerker stellt Thermostatventil am Heizkörper ein – hydraulischer Abgleich der Heizung
27. Mai 2026 · Förderung

Hydraulic Balancing 2026: Mandatory, Costs & KfW Funding

Hydraulic Balancing: When it's mandatory, what it costs, and how to secure BEG funding in 2026 – a compact ...

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Energieeffizientes Wohnhaus mit Tablet-Planung – Energieausweis und Lüftung verbessern den Kennwert
12. Mai 2026 · Energie

Energy Performance Certificate & Ventilation: What You Need to Know

How a ventilation system with heat recovery improves the energy certificate and increases property value – ...

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Edelstahl-Trinkwasserleitung und frisches Glas Wasser – Trinkwasserhygiene gegen Legionellen
28. April 2026 · Trinkwasser

Drinking water hygiene: Avoid stagnation & legionella

Preventing stagnation and legionella in drinking water: Causes, regulations according to the German Drinkin...

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Wärmepumpen-Außeneinheit vor saniertem Altbau mit Backsteinfassade
15. April 2026 · Heizung

Heat pump in an old building: What works, what doesn't?

Heat pump in an old building – is it possible? Requirements, costs, and subsidies 2026 in an honest overvie...

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Kondenswasser auf Badfliesen und moderner Badlüfter – richtige Lüftung gegen Schimmel im Bad
2. April 2026 · Bad

Mold in the Bathroom? How Proper Ventilation Helps

Mold in the bathroom usually has one cause: insufficient ventilation. Causes, three ventilation strategies,...

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Techniker wechselt Luftfilter einer Lüftungsanlage – Reinigung und Wartung
20. März 2026 · Wartung

Cleaning a ventilation system: DIY or professional company?

Changing filters, cleaning valves, checking ducts: What you can do yourself when cleaning your ventilation ...

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Why Wohnungstechnik.de

Your Partner for Heating, Air Conditioning, Plumbing & Ventilation

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.

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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 all systems that provide and control heat, cooling, air and water in a building. This includes heating (e.g. heat pumps), air conditioning and cooling, ventilation (e.g. ventilation systems), plumbing as well as piping and drainage systems. Modern systems with control and smart-home technology ensure energy efficiency, a healthy indoor climate, comfort and everyday safety.

What benefits does modern home technology offer?

Modern home technology offers numerous benefits for owners and tenants:

  • Energy savings through efficient heating and air-conditioning systems
  • Healthier indoor climate through ventilation systems and air purifiers
  • Comfort & safety thanks to intelligent control systems (smart home)
  • Sustainability through heat pumps, solar systems and optimised water use
  • Increased property value through modern technical equipment
Which products belong to home technology?

Home technology includes, among others:

These systems form the basis for a functioning and energy-efficient home.

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 energy-saving heating systems for low operating costs

Tip: At Wohnungstechnik.de you will find a large selection of tested products as well as expert articles and advice for the optimal solution.

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: high subsidies for replacing old heating systems
  • Solar systems: funding for photovoltaics and solar thermal
  • Energy-efficient heating systems: e.g. underfloor heating and hybrid solutions
  • Ventilation systems with heat recovery: for better energy efficiency and a healthy indoor climate

Thanks to these funding programmes, investment costs can be reduced considerably. 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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