03.Selecting a system The size and design of a ducted cooling
and/or heating system depend on a range of factors: - Your
home’s floor plan: How many levels are there? What are the
dimensions of the rooms (including ceiling height)? Which
direction do the rooms face? - The size, position and
orientation of windows and doors. - The type of construction
(for example, weatherboard or full brick). - The level of
insulation. - The number of people living in your home. - The
main use of the area (for example, sleeping, living, cooking). -
The ceiling cavity space - slimline systems are available for
homes with small ceiling spaces. - Outdoor spaces - just as with
split system air conditioners, the outdoor compressor unit(s)
needs to be installed somewhere where noise won't be an issue
(for you or your neighbours). - Large systems may require a
three-phase power supply, which will be an extra installation
cost if you don't already have it. That’s why you shouldn’t buy
such a system "off-the-shelf" — get the supplier