Please see below a collection of links to some useful external resources:

http://www.panasonic.com/nz/consumer/air-conditioning-heat-pumps.html

http://www.daikin.co.nz/

http://www.mitsubishi-electric.co.nz/heatpump/

http://www.fujitsugeneral.co.nz/

http://www.temperzone.co.nz/Hitachi-Products/All-Products/

http://www.waterheating.co.nz/