On Aug 6, 9:39*pm, PeterC wrote:
I'm adding another radiator to a room; it'll be on the outside wall the
same as the present one. The gap will be only about 10cm or so, room to get
valves in.
Instead of fitting valves to both rads., I was wondering about just
connecting them in series with a bit of pipe. Is there any major drawback
to this method?

No. If carried to extreme, eg having all the house's rads in series,
the last rad gets lukewarm water and has to be correspondingly huge.


NT