Smart mode is where Homely starts flexing its capability muscles. Homely will learn about your home and how long it takes to warm up and cool down. Homely has another trick up its virtual sleeve – it checks the local weather forecast and factors that in to its schedule. That means you get the home temperature you want, when you want it. You'll probably notice that your heat pump is running often, perhaps when you weren't expecting, and that your radiators are never hotter more than lukewarm. That's Homely maximising the efficiency of the heat pump.