Ventilation with heat or energy recovery

Baseline strategy · No score

Transfers some of the energy from the extracted air to the outside air by keeping the flow rates separate when applicable.

Subject: Thermal systems and ventilationContext: Buildings · Housing · OfficesCost: highEffort: mediumLevel: recommendedStage: design or rehabilitationMaturity: established
Principle of Ventilación con recuperación de calor o energía
Operating principle

How it works

Transfers some of the energy from the extracted air to the outside air by keeping the flow rates separate when applicable.

It meets thermal and indoor air needs after reducing demand, through sized, controlled, maintainable systems compatible with decarbonization.

When does it make sense?

  • After reducing loads and defining health and comfort requirements
  • When partial load and year-round performance can be compared
  • With access to commissioning, maintenance and monitoring

How to apply it

  1. 1

    Define what needs resolves "ventilation with heat or energy recovery" and establish a starting situation.

  2. 2

    Compare alternatives and adapt design to climate, use, regulation, affected people and available resources.

  3. 3

    Apply with clear responsibilities, check the actual result and correct unwanted effects.

Potential benefits

Thermal comfort

Healthier indoor air

Lower consumption and power

Limitations and precautions

  • The result depends on context, design, execution and how it is used and maintained.
  • Nominal efficiency does not guarantee the performance of the entire system.
  • Dimensions, refrigerants, noise, hygiene, controls and maintenance should be evaluated.

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