FREE content in this report


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Types of system


Positive pressure and balanced pressure systems explained. Read more

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Controlling condensation


Sources of moisture, and solutions for providing better ventilation. Read more

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"Heat recovery" units


We explain some of the confusion around "heat recovery" systems. Read more


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  • Compare price and features for 58 ventilation system products
  • Find out which type of system will suit your style and age of house
  • Our advice if you're thinking of buying a ventilation system

Note: this report does not contain test results or brand-specific recommendations.


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Does your house suffer from "crying windows"? A ventilation system could help.

If your home suffers from streaming windows, mouldy curtains and a damp unhealthy feeling, you need to improve your ventilation. We explain how to stop the sources of moisture, and what to look for in a ventilation system.

Note: this report does not contain test results or brand-specific recommendations, but we do compare the price and features of over 50 ventilation systems.