Unfortunately, Black Friday and Cyber Monday are over again. Luckily, we always have the best Nest deals for you. You save money thanks to the discount and the lower energy costs. You can easily set up the thermostat via the app, so Nest learns when you want your house to be warm. The thermostat heats up at the exact right time, so your boiler doesn't have to work as hard. The heating also isn't on as often when you're not at home.