Now that the Nest learning thermostat on sale in the UK, the Google-owned company is pulling out all of the stops to make it your go-to smart heating controller. On Thursday, it buddied up with its first European energy supplier to give Britons a more cost-effective solution (at least for now) to British Gas' own Hive thermostat. npower, Nest's partner in crime, is incentivising customers to switch over to its new dual-fuel tariffs (which fix energy prices until April 30th 2017) by offering a Nest for just £99 installed. That's £100 less than the Hive and a third of the price of a standalone unit (with support) ordered from npower direct. You can, of course, still pick one up for £179 on Nest's own website and Amazon, or online and in-store at Apple, John Lewis and B&Q, but it'll be down to you to install it and make sure it works as it should.