Re: Hello there

[Mark J Cox <mark@xxxxxxx>]

> I've read up on Mark McCall's Homevision/heating intergration and 
> Keith Doxey's timeswitch replacement (these two websites fueled my
> enthusiasum enormously), and I'm looking for anybodies 
> advice/ideas/experience with automating a combi boiler

I've not seen either of those sites - but I moved into a new house that
had a Baxi combi boiler.  The boiler had been installed with an
internal
timeswitch but no thermostat, but one could be easily installed by
removing a internal link.  I use a relay across these contacts
(controlled
by a one-wire Maxim switch, but thats a different story) and it works
great.  The boiler has it's own overrun, so it really doesn't care
even if
I switch the relay on and off every few seconds, but my software is
designed for a maximum of 4 cycles an hour anyway just in case.  
Switching the mains input to the boiler wouldn't work since the boiler
has
to have power or you don't get hot water.

Mark
--
Mark J Cox ........................................... www.awe.com/mark
Apache Software Foundation ..... OpenSSL Group ..... Apache Week editor

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