By using balanced, mechanical ventilation with a high efficiency regenerative heat exchanger it is possible to achieve twice the ventilation rote required by the Norwegian Building Code, and still consume less than half the normal amount of energy. This is the conclusion drawn from extensive measurements made in a Norwegian single Family home last winter. The measurements were made by the EMTEK-programme, which is a Norwegian government programme to promote the introduction of energy efficient products.
Balanced ·mechanical ventilation with heat recovery (MYHR) offers, in principle, a way of reducing carbon dioxide emissions from dwellings. In order for such systems to produce a clear reduction in C02 it is necessary for the emissions from the low temperature heat saved to exceed those from the electricity used to drive them. This condition places a lower limit on the coefficient of performance (COP) of MYHR systems, which in the UK is around 3. The major variable in system performance is the electrical input to the fans.
This document is the final report on a field assessment of proposed revisions to Article 9.32 of the Ontario Building Code. In the fall of 1992, Buchan, Lawton, Parent Ltd. was commissioned by the Ontario New Home Warranty Program, on behalf of a group of Project Partners comprised of government agencies and industry groups1, in order to undertake a field assessment of the residential construction industry's ability to install mechanical ventilation systems for houses to meet the requirements of the proposed Revisions.
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