Re: Computer Controlled Underfloor heating

["happy_hammer66" <bill.mcmahon@xxxxxxx>]

What's the response time like? I thought that underfloor heating was 
slow to heatup/cooldown so by the time an occupancy detector flagged 
that you were in a room and increased the heat you had probably left 
the room already because it wasn't warm enough.

bill





> Frank Mc
>   ----- Original Message ----- 
>   From: Simon Coates 
>   To: ukha_d@y... 
>   Sent: Tuesday, June 18, 2002 9:54 PM
>   Subject: Re: [ukha_d] Computer Controlled Underfloor
heating
> 
> 
>     My replies:
> 
> 
>     sounds great but I was think more of a system
that can report 
status (HV can report status - temperature of each room, occupancy of 
each room, wheter the rads/UFH is on or not etc.... it can basically 
do whatever you want)  and accept instructions from a PC or other 
system, the idea being that it would operate as a stand alone system 
with overrides from the home automation/security systems. 
(My 'philiosophy' for HA has been standalone yet integrated systems - 
ie. having HV do the automation work, Comfort doing the security and 
Futronix handling most of the lighting - all separate systems but can 
talk to each other.  For heating, however, I thought that HV would be
ideal mainly from the fact that the support for DS18S20s is so good, 
and that it's fairly easy to program a 'clever' heating schedule) 
This would allow (for example) the heating to be set back when the 
house alarm is in away mode and would give more flexibility than one 
of the 'standard' systems with regards shedules and remote 
operation.  (Comfort tells HV that we are out and HV adjusts the 
schedule to suit)
> 
> 
> 
>     There are two main reasons for retaining a
system that will 
work without interfacing to a HA system as I see it....first if the 
property is sold just take out the interfaces and you have a bog 
standard UFH system (if I sold our house then the heating system 
could be easily downgraded to 'normal' control, but I think having an 
intelligent heating system installed would be a good selling 
point!) ..second if the HA system is down the UFH will still operate 
correctly although with limited functionality (Firstly, HV is 
extremely reliable, and secondly I can override all valves manually 
and still have a central heating system that is better than most 
standard systems)
> 
>     Mick - have you tried Velta UFH systems - they
sell some 
sophisticated stuff - bit expensive though.
> 
>     Regards
> 
>     Simon
> 
>     Mick
> 
>       -----Original Message-----
>       From: Simon Coates
[mailto:ecolume@g...]
>       Sent: 18 June 2002 11:58
>       To: ukha_d@xxxxxxx
>       Subject: Re: [ukha_d] Computer
Controlled Underfloor heating
> 
> 
>       Sort of my own!
>       System consists of 17mm PEX/AL/PEX
pipe used as UFH in 
screeded floors and same pipe to feed conventional radiators - all 
via manifolds with each zone controlled via actuator valves.  Each
room with DS18S20 sensors and occupancy PIRs linked to HV.  Boiler
and distribution valves controlled via HV outputs and actuator valves 
controlled via X10 relay board.
>       Downstairs I've fitted a 3 zone
UFH manifold and an 8 zone 
distribution manifold - upstairs there's a 7 zone distribution 
manifold.
>       Not got all the sensors fitted
yet, but so far I'm happy with 
the system.
>       Soon HV will control the heating
dependant on time of 
day/year, external temp, house occupancy/room occupancy, guest mode 
etc...  well that's the theory :o)
> 
>       Regards
> 
>       Simon
>         ----- Original Message
----- 
>         From: Mark Harrison
>         To: ukha_d@y... 
>         Sent: 18 June 2002
11:53
>         Subject: RE: [ukha_d]
Computer Controlled Underfloor heating
> 
> 
>         Ah? Which system are
you installing?
> 
>         Regards,
> 
>         Mark
>          
-----Original Message-----
>           From:
Simon Coates [mailto:ecolume@g...]
>           Sent: 18
June 2002 11:44
>           To:
ukha_d@xxxxxxx
>           Subject:
Re: [ukha_d] Computer Controlled Underfloor 
heating
> 
> 
>           I'm
installing my own system at the moment controlled via 
HomeVision.
> 
>           Simon
>            
----- Original Message ----- 
>            
From: Mick Furlong 
>            
To: ukha_d@y... 
>            
Sent: 18 June 2002 11:40
>            
Subject: [ukha_d] Computer Controlled Underfloor heating
> 
> 
>            
has anyone come across an underfloor heating system 
which can be controlled from a PC?
> 
>            
Several of the ones I have found have their own 
microprocessor control but no way to allow any external control from 
your own devices.
> 
>            
Mick
> 
>            
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