Looks amazing!

Hmm, seems no one has seen them around. I have found them online at Trend Living at Chipping Norton in NSW, Aeros in Victoria and Stallion Product in WA. I didn't think they were that uncommon. Any feedback would be appreciated!!!!

I believe CDK Stone in VIC sell it by the slab, rather than tile. Off the top of my head I'm not sure of anyone in Sydney.

watchedpoppy, here's something about heat pumps designed for cold temperatures. Note, these are reverse cycled air conditioners (air-to-air), not pool heat pumps (air-to-water). I don't know how heat pumps stack up. It's an American site, so FYI -13F equals -25C. http://www.mitsubishicomfort.com/benefits/hyper-heating On a side note, temperature is just the product of the motion of atoms & molecules (kinetic energy). These are in motion all the way down to zero Kelvin (-273C). So although it may feel cold outside, there's still energy available in the site, although heat pumps do become much less efficient when it's cold (the difference in input & output temperatures is important). One thing that has made heat pumps very inefficient in the past is that the condensing coil would ice up at around zero C. This would have to be thawed out with a plain old electric element (COP of 1). Greatly reducing the overall COP in temperatures around our below zero C. But the modern heat pumps, which use the CO2 compressors Luxury Home Heating has talked about don't have an electric element to thaw them out, greatly increasing their efficiency. As for the noise issues. Some modern heat pumps (but not all) are very quiet. So just pay close attention to the decibels they produce, listed on their spec sheets. FYI, here's a good read. Though it doesn't mention solar PV, which would be advantageous for a heat pump. https://www.pooledenergy.com/blog/choosing-a-pool-heater-what-are-the-relative-performances-of-solar-gas-electric-pool-heaters/