can you swap to easier to use thermostat

BUFF

Dolor said:

Apodemus said:

NannaH said:

Hives and hive minis are dead easy to fit.  You already have a modern receiver so the wires from the boiler are already there for the hive receiver.
 You need a hub that plugs into your router for the mini as it’s all app based but you can use the normal Hive without a hub and control the settings from the thermostat,  you can put it on a wall or have it free standing.  My Daughter has the normal hive but the previous owners took the hub so I’ve bought her one for Xmas.   The thermostat seems to eat through batteries though,  much faster than in my salus it500.  

Are you sure that is correct for the OP's situation?  If the Honeywell T3 is a wireless room thermostat/programmer, then the receiver may well be inside the boiler.  My understanding is that for a gas boiler, that means that you need to be Gas Safe registered to access the receiver, so wiring in the Hive might not be a DIY job.

Sensible advice. My understanding is that the T3R comes with a BDR91 ( which Honeywell now calls a receiver box) . The BDR91 contains a power relay and a communications hub. The BDR91 normally connects to the wiring box/standard wall plate not directly to the boiler. 

It is worth bearing in mind that not all wireless thermostats offer boiler modulation control as, unlike mainland Europe, we haven’t made it mandatory. For example, Tado wired thermostats offer modulation whereas their wireless thermostat does not.

Before coming to any decision, I would check to see if your boiler is Opentherm capable. Opentherm  control negates the need for high voltage connections. The Opentherm receiver box connects to the boiler via a 24 volt wired connection. It is a two wire connection and the boiler is agnostic when it comes to which of the 2 wires goes where.

Opentherm is the best way to modulate your boiler. A simple analogy is that it controls the boiler gas flow to meet demand such that it would be similar to driving across London with all the traffic lights on green. This reduces boiler cycling and boiler wear.

In sum, there is more to choosing a thermostat than ease of programming.

The current Tado wireless extension for the UK doesn't offer modulation. The older one did but for some odd reason they removed it from the UK product but kept it in the EU product. There is a suggestion that they may bring it back again for the UK product or offer both (you can already buy it "with" from their professional UK site except that it currently doesn't have an UK plug).

OpenTherm is just a communications protocol between the boiler & controls. There are (& possibly slightly superior) proprietary equivalents used by some boiler manufacturers e.g. Worcester Bosch, Vaillant & Viessmann (in some models).
There is even variation in the implementation of OpenTherm between manufacturers so that it sometimes isn't as cross-platform as one might expect ...

[Deleted User]

Opentherm worked brilliantly on the Atag boiler that I had in my previous home. Sadly, UK boiler manufacturers are happy to provide Opentherm compatibility for their boilers supplied to, say, The Netherlands (where Opentherm is mandatory) but not in the UK. 

I was reading on another forum that buying a control board from Europe, and fitting it to a UK boiler, works as advertised but it invalidates the UK boiler warranty.

BUFF

I am sure that it did. Atag make excellent boilers.
It would be better imo to mandate (if needed as tbh the market already drives it) modulating or modulating with open access to the ebus rather than OpenTherm per se. As I mentioned there is some evidence that the proprietary solutions may be (slighty) better than OpenTherm presumably because they are better tailored to the individual products (controllers & boilers).
OpenTherm is/was driven by the 3rd party manufacturers who feared being locked out of the market but does have the pro that competition should keep pricing reasonable.

jvjack

Gosh forgot about this one. thanks all for info
I persevered with the programming of timer and have managed to understand how to.
Have to carefully do it. One mistake and its start all over.