[Date Prev][Date
Next][Thread Prev][Thread Next][Date
Index][Thread Index]
RE: Heating Question
Mick,
I'm just checking things with the makers, and then trying to find a UK
stockist.
Stuart
On Mon, 2002-02-25 at 11:28, Mick Furlong wrote:
> Stuart
>
> sounds interesting, where are these units available from?
>
> Thanks
> Mick
>
> -----Original Message-----
> From: Stuart Poulton [mailto:swp@xxxxxxx]
> Sent: 25 February 2002 11:22
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Heating Question
>
>
> Kevin,
>
> Thats basically what I'm looking at, there are replacement units for
> TRV, that replace the thermostatic knob, with on containg an
> electrically heated core, takes about 4 minutes go from fully on to
> fully off.
>
> Stuart
>
>
> On Mon, 2002-02-25 at 11:16, Kevin Wood wrote:
> > I have heard (haven't got round to trying it) that a low cost
way of
> zoning
> > off a heating system with TRVs is to strap a small resistor to
the
> valves
> > you want to control and dissipate a few watts of power in the
resistor.
> This
> > artificially increases the temperature of the TRV by a few
degrees and
> > causes it to cut off the flow of water early.
> >
> > I would imagine this doesn't give you the on/off control you'd
get with
> a
> > motorised valve but could be useful for reducing the
temperature of
> certain
> > "zones" to a "set back" temperature when
not occupied. Perhaps coupled
> with
> > a PIR in the room concerned. The degree of "set back"
can be adjusted by
> > varying the power into the resistor. Could even automate that
if you fed
> the
> > resistor with a PWM signal.
> >
> > It has a few advantages, notably cost, the fact you don't have
to drain
> > plumbing, etc. and it's easy to restore the system to it's
original
> state.
> >
> > SWMBO probably wouldn't even notice.
> >
> > Kevin
Home |
Main Index |
Thread Index
|