Hive Active Heating and Hot Water with Professional Installation is back with a £40 discount from yesterday.
This is a prime deal.
Highly recommended as the installation can be quite tricky to the novice
Had mine installed last month, it's fantastic, best thing about it is the ability to turn the water or heating on or off by text.
Amazon should give you a full refund if for any reason the engineer cannot fit it.
British Gas customers may be able to get it for £159? see post #31