NB; 20% off Online with code FIRSTSHOP20http://www.plumbcenter.co.uk/info/register/
Thanks to @deanos for the spot.
After a recent broken Vaillant thermostat - I thought I would share some good intel on an amazing deal from Plumb Center (no, I'm not on commission).
In an era of smart thermostats costing 200+ fitting, its worth noting that those in the trade tend to recommend Honeywell thermostats. They are reliable, simple to use and have a good rf signal/receiver.
The Plumb Center own brand thermostat is made by Honeywell, and although it doesnt have a holiday setting, doesnt come with extended warranty (as the branded ones do), or have the "call anytime" type customer service, this unit shares a lot of the DNA of the Honeywell CM721, but costs a good £100 less (you can compare pictures and draw your own conclusion on how similar they are http://www.partscenter.co.uk/product/honeywell-cm721-24-hour-programmable-room-thermostat-radio-frequency-controlled/
It has a 7 day programme, auto and frost protection setting, as well as Honeywell's energy saving TPI technology:http://www.honeywelluk.com/documents/All/pdf/TPI%20Functionality%20explained.pdf
My experience so far has been that the Part Center 'stat is far superior to the Vaillant unit that came with my boiler (which was over £150) and has a rock solid connection; so for anyone needing to save some money, but still get a quality part, this is well worth knowing about, although you will want to pay an engineer to fit it.