The Building Code of Australia (BCA) have set specific energy efficiency standards for new homes. Residential buildings that get at least 5 stars under the Nationwide House Energy Rating Scheme (NatHERS) are considered ideal. With more stars scored, the property is more thermally comfortable for its occupants; it’s also less likely for the residents to need or use more power on heating and cooling. However, the Commonwealth Scientific and Industrial Research Organisation or CSIRO spotted one major flaw during a field evaluation with regard to the NatHERS system or the BCA standards: they were concentrated on heating, which means that the cooling aspects had several grey areas. What impact will cooling have in power consumption if the heating tasks are lowered as much as possible? Will one room’s low temperature or inefficiency in maintaining the indoor air’s comfort level not affect the overall rating?
http://modeheatingandcooling.com.au/cheap-cooling-systems-arent-always-inefficient-uncomfortable/
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