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What is heat recovery ventilation and how does it work?

Heat recovery ventilation is an ingenious way to maintain fresh air indoors and energy savings at the same time. The system extracts stale warm air from ‘wet’ rooms such as kitchens and bathrooms and expels it into the surroundings. At the same time, cool fresh air is brought in to supply the other rooms such as bedrooms and living rooms. These two air flows intersect at the heat exchanger where heat from inside the building is recovered and transferred to the air going into the building.

HRU_in_situ

Courtesy of Itho

A counter-flow heat exchanger allows the incoming and outgoing air to flow in opposite directions over large surface areas to achieve thermal efficiencies of up to 91%. During summer months, the heat exchanger can be bypassed to provide a cooling effect. Heat recovery ventilation beats other forms of ventilation such as windows and extractor fans because it works quietly, independently and retains heat.

Why get heat recovery ventilation?

  • Energy requirements reduce to save you money on heating
  • Stale air is continuously replaced with fresh air for a healthier breathing environment
  • Moisture build-up is prevented to keep condensation and dust mites away
  • In-built filters keep out excess pollen and dust to protect allergy-sufferers
  • The system operates quietly and continuously at a wide range of temperatures
  • Part F Building Regulations can be achieved at a reduced cost

Find out what Arctic Air can do for you here.