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Glossary

Term: (MVHR) Mechanical Ventilation with Heat Recovery

Also known as heat recovery ventilator (HRV) or comfort ventilation. A whole-house ventilation system that takes out heat from the old (exhaust) air and gives it to the new (intake) air. Fresh air is delivered to living areas (e.g. living room and bedrooms) and extracted from kitchens and bathrooms. MVHR units do not supply new heat into the supplied air. However, a supply duct radiator can be used to add heat to the new air after it leaves the MVHR unit.

Source: The Passivhaus Handbook

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