Hi all, short time lurker, first time poster :P

First off, sister is having house done up by housing association - who
have fitted central heating/radiators as so: 1 thermostat controlled
radiator in bathroom, 1 TC rad in bedroom, 1 rectangular TC rad in
living room and 1 small lockshield capped radiator in the hallway.

The problem is the hallway lockshield capped radiator - it heats up
pretty hot and she has no way to disable it and doesn't want the dog to
stick to it or something - in the meantime my dad has taken the cap off
and 'isolated' it. [1]

My sister asked to have a TC rad to replace it, and today the foreman
said it wasn't possible because it had to be done like that (for some
un-described reason).

Now I read the manual of the 30ci recently, and remembered this gem from
it : "If the central heating circuit is fitted with thermostatic
radiator valves to all radiators then an additional bypass should be
fitted not less than 1.5 meters from the appliance, see diagram 3.1."

I guess the non-TC rad was used so they didn't have to use a bypass?

So what I want to know is, /how hard is it to fit a bypass/what does it
cost/how big is it/where does it go/how does it work/ as this would be
helpful to negotiate with the foreman tomorrow (if he's there) to
replace it with a TC radiator (this shouldn't be hard for them as they
changed the radiator in the living room from a large TC rad to a long
rectangular TC one for some reason during the day).

[1] = Which after reading the manual & googling sounds like a 'bad thing
[tm]' if all the other radiators are shut off and the c.heating is on.
(http://makeashorterlink.com/?B41624A45)

Glow worm's site is www.glow-worm.co.uk, I downloaded a manual for the
30ci last night but now the site seems to be down.

Also, as an aside - the manual programmer's clock doesn't keep time
(e.g: set it to 8:30am and it'll be there still next week and keep the
c.heating on!) - it just stays frozen but I can hear it ticking - HA
said they will call out a co. to replace it - but I was just wondering
what could be wrong with it?

--
Dazed