<div dir="ltr"><div>My boiler uses the WB Heatronic 3 control interface rather than a simple on-off thermostat.The pump runs almost continuously and the burner is throttled to keep the circulating temperature just right, optimising condensing.<br><br></div>Mark<br></div><div class="gmail_extra"><br><div class="gmail_quote">On 16 February 2015 at 17:32, Damon Hart-Davis <span dir="ltr"><<a href="mailto:dhd@exnet.com" target="_blank">dhd@exnet.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Note that, FWIW, an RFM12B is not capable of the OOK (On-Off Keying) that we happen to currently use, ie to talk to the Conrad valve.<br>
<br>
We are using the RFM23B, and sometime real soon now will move to the RFM69CW, though put that off a bit by buy nearly 400 of the 23Bs!<br>
<br>
Rgds<br>
<span class="HOEnZb"><font color="#888888"><br>
Damon<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
> On 16 Feb 2015, at 17:27, Tim Small <<a href="mailto:tim@buttersideup.com">tim@buttersideup.com</a>> wrote:<br>
><br>
> On 16/02/15 17:16, Mark Wigmore wrote:<br>
>> Is the split configuration available as a kit or even assembled?<br>
><br>
> FWIW, others have retrofitted a RFM12b radio to the HR-20, and also<br>
> re-written to the firmware from scratch, this suggests it also works<br>
> with the HR-25 hardware:<br>
><br>
> <a href="https://piontecsmumble.wordpress.com/2013/02/25/openhr-20-tutorial-part-0-introduction/" target="_blank">https://piontecsmumble.wordpress.com/2013/02/25/openhr-20-tutorial-part-0-introduction/</a><br>
><br>
> No one has got this working with OpenTRV yet, but it sounds feasible I<br>
> think.<br>
><br>
> Tim.<br>
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