Switching over to an app controlled CH system

[Banks9]

Hi all,

Im wanting to control my central heating by an app as i have no set routine for when im in the house.
I currently have a Honeywell st9400c programmer and a Drayton RTS1 thermostat. What is the easiest way of switching over to an app controlled system? What systems are best? Would it be easier sticking with Honeywell for the wiring side of things?

Many thanks

 

[CountryFan]

Hive/Nest/Wiser et al. No need to stick to Honeywell and often an industry standard backplate will fit onto existing Honeywell industry standard backplate.

 

[RandomGrinch]

Or to elaborate on the above; the ST9400c fits onto a backplate that is almost identical to that which comes with a Hive, or a Wiser system (a Nest would require a little more rewiring) - which means a very simple task of replicating the existing wiring on to the new backplate.
Then the existing thermostat could be bridged out, or simply set to it's maximum temperature.
The ST9400c is a dual channel programmer, you would also want a dual channel Hive, or Wiser.

 

[Banks9]

Thanks for the replies. I take it the Hive and Wiser are on par with each other regarding reliability and function?
Would these be the correct kits for myself?

Drayton Wiser Smart Thermostat WT724R9K0902

Drayton Two channel thermostat pack ideal for conventional systems. Enables control of heating and hot water via the Wiser Heat app. Wire in existing cylinder thermostat for hot water control.• Warranty: 18 Months

www.toolstation.com

Hive Active Heating Thermostat V3

Stay in complete control of your home's heating and hot water, wherever you are. With this Hive thermostat, you'll be able to adjust temperatures and create schedules with a few simple taps on your smartphone - even if you're away.At home, your Hive smart thermostat is easy to use manually...

www.toolstation.com

 

[Londoner2]

You shuold also look at:

Tado

https://www.screwfix.com/p/tado-v3-wireless-heating-hot-water-smart-thermostat-starter-kit-white/141kt

Salus

Salus iT500 Smart Thermostat Wireless Smartphone Central Heating Control | eBay

Salus IT500 Wireless smart thermostat

www.ebay.co.uk

I have the salus one, and its worked fine since install back in summer 2020.

 

[RandomGrinch]

I take it the Hive and Wiser are on par with each other regarding reliability and function?

Both seem popular on this forum, with maybe the Wiser having a slightly better reputation.
Both have the option of future expansion, via compatible smart TRVs etc.

Would these be the correct kits for myself?

Yes, either of those kits should be correct.