#$%^&*AU2012101655A420121220.pdf#####ABSTRACT The device is a system of heating and cooling relying on convection currents and with or without assistance from a fan or fans to direct air via floor joists and wall cavities. During daytime in winter, solar heated air is directed to and stored by means of the thermal mass of internal brick walls. The device integrates a fixed water tank as a further heat sink and temperature stabiliser. A system of adjustable vents directs air flow at the required temperature into the conditioned living space.a)0 -b E 00 COD tm 0
