Hot water, and 2 heating zones. I have bought Tado V3+ wireless thermostat (probably better will be wired kit ) with hot water control item 104005 (refurbished:) ,additional to that bought smart thermostat (wired). I Did have 3 zone controller from EHP exactly EHP R37-HW from original installation has been all electric valves all wiring as per EPH specification https://www.ephcontrols.com/wp-content/uploads/2017/05/CR32_P_WD_JW.pdf If you absolutely need hot water control with tado, we fully recommend you hire a heating electrician. This person should then "permanently bridge" both heating zones in the existing programmer.

Secure (Horstmann) H37 XL Channel.Plus (Series 2) 3-Channel

The Heating zone controller is set to the Zone Smart Thermostat, for me 1st Floor. So when the Smart TRV calls for heat it will activate the Zone controller this then switches the motorised valve for that heating zone which starts the pump and boiler. The thermostat is compatible with a wide range of heating systems, including gas, electric, and oil boilers. It offers basic functionalities such as temperature control, allowing users to set their desired room temperature and adjust it as needed. I am concerned because I'm being told by Tado that it is not compatible. The only option they are offering is to keep my current programmer and use this in conjunction with their thermostats. If I do this I will not be able to control my hot water. As I said I currently use three channels and tado only supports two.In my setup, I had 3 channel Programmer, hot water, ground floor CH1 and 1st floor CH2; each heating zone had a room stat; one in the hallway and one in the master bedroom. Could I ask, are the Smart Thermostats in relay mode (wired) and not wireless? I'm guessing they are wired to a motorised valve which controls the heating zone. I have sent off the details of my heating system to tado but they are unable to help as it requires three channels.

channel programmer. — tado° Community Replacing a three channel programmer. — tado° Community

Nope, nothing is missing. I do intend to tado my entire house, however tado can only support two channels - I need three. And/Or is there a more energy efficient alternative for controlling heating and hot water in our context? Thanks The H21XL thermostat features a clear display screen that shows the current temperature and settings, making it easy for users to monitor and make adjustments. It also offers programmable scheduling options, allowing users to set different temperature levels for different times of the day, ensuring optimal heating efficiency. I've a similar 2 CH zone+ HW system as you. I've installed 2 tado smart room thermostats in each of the zones. Final part is to replace the programmer with the extension kit to be able to control hot water. Tado have paused my online installation saying tado is incompatible with a 3 channel system. Like you I can see I should just wire both existingCH ON wires to the single CH ON terminal on the extension kit, and let the call for heat from the smart thermostats drive the zone valves and boiler. I've explained this to tado and asked for installation instructions based on an equivalent 2 channel system and wait for a response.

Attached is my current wiring. I am not good at Electric terms, here it's mentioned that we need to "permanently bridge" both heating zones in the existing programmer. I have installed a wired Tado thermostat to replace an existing CH zone room thermostat but need to get the Tado V3+ wireless thermostat installed to replace the other wired thermostat (currently above an oven) for the other CH zone and ideally the hot water as well. Why are you concerned that a single bridge wouldn't cope with your house? Two floors and hot water is normally no problem. Do you currently have comms problems at home?

ChannelPlus h37Xl seRIes 2 - Wolseley

Smart thermostat is controlling zone 2 independently (valve 2). in the setting need choose Zone controller to None (work as independent). Afterwards, just replace the 2 wired thermostats with tado wired wall thermostats and you have full heating control with tado. F-Gas (Fluorinated gases) government regulations specify that a limited number of products can be sold in the European Union that contain F-gases which have been linked to climate change.So I can wire the extension kit, but could you explain what other configuration steps you took please? What I have discovered the Smart Thermostats do not need to be calling for heat and can be set to Off, 24/7. May I ask how you are controlling each room individually? Do you have tado TRVs installed in each room or something? I can't see how it's possible without them. It has come to the end of it's life and now has to be reprogrammed after each power failure. To save expense (New programmer / rewire etc.), has anybody any information about the battery type or replaced one? We would rather not remove the programmer, have a look and then have to do it all again if possible.

Horstmann ChannelPlus H37XL Series 2 Installation Instructions Horstmann ChannelPlus H37XL Series 2 Installation Instructions

Sparky, that explanation is a great help for me thank you. Could I trouble you with a couple of follow on questions please? However, I wanted more control. I've since upgraded all the radiators (9) with Smart TRVs. Tado Support setup Zones/ Floors, added Smart Thermostats and TRVs to their respective zone/ floor. Soon ran into a problem with the setup; asking for heat from a Smart TRVs on the 1st Floor would not turn on the boiler. The copy functions copies one days timings to another day. It was present on older models. See the manual for details. Furthermore, the H21XL thermostat has a built-in frost protection function, which prevents pipes from freezing during cold weather. This feature is particularly useful for homeowners who often leave their houses unoccupied for extended periods. Had a new boiler replaced so the electrician came to wire the boiler helped me to install the Tado system (He never did Tado before). So we read the instruction and wired.We have an existing Horstmann H37 XL ChannelPlus on an oil-fired system. It has been in use for many years and works fine but changing the on/off times drives me nuts because each day has to be done separately. You wouldn't believe the number of button presses this involves. I note that the spec here says the timer has a Copy function? How does this work? Is this feature new or am I missing something on my old version of this timer? If this is a new feature I'd probably buy a replacement for this alone.