Home heating automation

The tax take varies depending on which delivery country you select, Ireland or UK but the price with tax stays at £188.99.

Make sure you're not selecting the economy version with no led display of temperature.

The thermostat stat acts as the physical relay to call the boiler and fire it. The smart TRVs open the radiator valve but have no wired connection to the boiler, but are wirelessly connected to the thermostat (or its receiver if it is also wireless). Tado TRVs reduced by 35% at the moment, you will also need a wired or wireless thermostat starter kit.

That's pretty mean. I only got the Email on the 7th, tried to order on the 8th, but the shop site didn't list Ireland, but listed every other EU country. Price for 4 TRV's was €208 across the board, and you could see the different VAT take simply by changing the country destination. I should have sent it to family in Netherlands who will be visiting soon. 2 miserable days for the offer. Not to worry, it will repeat. Starter kits are top value in Screwfix still.

IFTTT have really screwed up with their pricing and their "legacy customers" v Pro v Pro+.

Wouldn't be surprised to see this more and more and it be a snowball effect. Sucks as well since they actually did a lot of stuff better than Google and Amazon.

so buying from EU is better than UK due to opentherm for starter kit ? There is an offer on Amazon and one of the friends wants to buy ? Thanks.

Its a boiler with hot water tank so not sure if modulation/opentherm is at play ? This is the datasheet

https://www.worcester-bosch.ie/support/literature/download/6721874147

That depends. If you buy just the wired stat kit, the OT terminals are also on it, or were at any rate. If you want the stat and wireless receiver, you need the EU one to replicate to OT terminals on the receiver. Once you configure as OT or other digital driven connection, the electrical relay in the stat or the ext. Kit is disabled. OT boilers don't do S plan and zone valves, at least not with Tado. The high end Evohome does have a solution in hardware for that afaik.

the screwfix one is not EU afaik ?

Here's exaggeration in advertising.

The most expensive; €190. The mini version hubless starts at €100.

For single CH zone and HW, the Tado V3 starter kit is leading edge smart, and best value for the full starter kit with wireless stat, ch/hw reciver and Internet bridge. €153 for the kit with black wall stat, a little more for the white. Similar functionality kits are the Hive v3 HW/CH kit with hub, or the Drayton Kit2 . The receiver wires easily in place of your EPH, the wireless stat wall attached in any ideal location or can be stand mounted. If you have an existing manual wall stat, turn up full to keep the connection from the receiver to the boiler, or remove and cross connect the old stat Common and Normally Open wires. I'm assuming your system is a 2 zone system with CH and HW independently timed. If its a gravity wired system with HW heating independent but also when CH is timed, then the Tado receiver (aka the extension kit) can be configured to support this.

https://www.screwfix.ie/c/heating-plumbing/wireless-thermostats/cat4600004

They tried till the end to sell me their boiler and smart automation…when i asked about smart TRVs they said yeah thats par of the quote when it was not..they just sub hire local plumbers to install

I assume your CH Thermostat or app control is still connected to call the boiler. Is this the older version 2 extension kit ? This has a small configuration switch to change the relays from CH and HW switched live outputs to a single volt free CH only relay, which may possibly disable the HW configuration in the app if selected. You can reconfigure your system by a series of presses on the main stat to configure HW switching on. It might be easier to request a remote support access by Tado to see if your HW configuration has been disabled.

@deezell I just changed the batteries in the wall stat linked to the kitchen rad and the hot water is now working. I've no idea why 🤷🏻‍♂️

You just need to move the wiring from the EPH R27 across to the Tado extension kit. N (Neutral) and L (Live) from the EPH go to N and L on the Tado, just be aware that N is first terminal from the left on the Tado but second on the EPH, the first being an Earth terminal. The timed live outs, HW on and HTG on from the EPH go to HW NO and CH NO on the Tado. Because the Tado relays are volt free, you need to wire a link from the Tado L to the HW COM and the CH COM. This will replicate the two live out terminals on the EPH. That's it. If your CH has a wall thermostat somewhere, hall or living room, turn this up full to complete the HW circuit, (or remove it and cross connect the two wires). The Tado receiver will switch the CH according to both the timed schedule and the wireless thermostat setting.

As you're probably aware, the Tado can have a different thermostat temperature setting for every time slot. Time slots have 5 minute resolution, so you can have slots of several hours to just a few minutes.

👍 thats it.