I am about to embark upon installing my combi boiler central heating
system. Im having to do this in stages. Im thinking of splitting it up
into piping, radiators, an boiler and getting in a Corgi man to
connect up the boiler.
Where would you suggest I start? I know where I am going to put my
boiler. Should I lay down pipes first, or the radiators?
Thanks in advance
Fix the radiators first, then pipe them back to the boiler location.
Bear in mind that you really need all joints in the pipework to be visible
in order to check for leaks when firing the system up for the first time -
so you want to minimise the time for which carpets and floorboards have to
be up, by doing the pipes as late as possible.
Double check your plans, make sure that you know exactly where all the
pipe runs will go and that they are possible. Also don't forget to
establish your drain point(s)
I would put the radiators in place first and run the pipes to them
You start by doing the heat loss calculations, and deciding if
you want a condesing or non-condesing boiler. Then you can
choose radiators to match the heating requirements of each
room. Also, look at the building regs and make sure your system
is going to conform (concerns things like thermostatic radiator
valves and the system control/thermostat/timer in particular).
A while back, someone here suggested hanging all the radiators
as soon as you get them. That gives you a chance to decide you
don't like some of the positions before you start piping anything
up. If the wall behind the radiator is going to need any
attention (e.g. decorating, replastering), you might want to get
that out of the way first, to avoid having to remove the radiator
You don't need to have installed the whole system in order to
start using it. I did a system with separate upstairs and down-
stairs zones. The upstairs zone was installed and working a
year before I got round to doing the downstairs circuit.
Even then, the last downstairs radiator was only connected up
well over year after that! If you know you are going to do
this, you should arrange that the zones can be isolated and
separately drained and flushed. (Come to think of it, I never
installed the hall radiator because I never found what I wanted,
a radiator which is designed to be flush mounted into a wall,
or protrudes no more than half an inch, in either case using
just the front face for heating output.)
Have a look through this site for all the plumbing and heating planning
sections. It should give you more information on the major bits you need to
I started with a big black pen, and I went round the house drawing where the
pipe would go.
Then I looked for problems, like crossing the pipes, low points, difficult joins
etc, and worked out how to do the pipes better.
On 12 Jul 2003 05:51:50 -0700, jameswilson email@example.com (James W) wrote:
"Rick Dipper" wrote
| I started with a big black pen, and I went round the house drawing where
| the pipe would go.
| Then I looked for problems, like crossing the pipes, low points, difficult
| joins etc, and worked out how to do the pipes better.
Should have done it in pencil first then, and made sure you had a big
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