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RE: Heating Question
- To: <ukha_d@xxxxxxx>
- Subject: RE: Heating Question
- From: "Mick Furlong" <hiltoneltd@xxxxxxx>
- Date: Mon, 25 Feb 2002 11:28:09 -0000
- Delivered-to: mailing list ukha_d@xxxxxxx
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Stuart
sounds
interesting, where are these units available from?
Thanks
Mick
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
For
more information: http://www.automatedhome.co.uk
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