I had Sanden Heat Pump HWS installed this week. Pure Electric were a great team to work with, I can only recommend them very highly. The Sanden system works great, our existing solar gas boosted system had effectively become a instantiations gas system after 10 years. We all need to get off gas, so our kids have a future. This product is super efficient and we are running it off our existing solar panels during the day light hours (free hot water). I would like to make a shout out to John Hooper, who works with Pure Electric, incredibly knowledgeable person who goes above and beyond to make you have a great experience.