Central Heating Installation - Routing Pipework

Hi,

I have just moved into a 3 bed bungalow that does not have central heating. Our first project is to install an oil CH system, however I need advice on the best method of installing pipework. The floors are concrete and are as hard as diamond. Installing the supply and return pipework in the floor is going to be a hard task and will create a lot of mess. I'm not sure of the current regs on doing this either, are you allowed fittings in the floor etc?

A friend suggested that I could run the heating pipework through the loft space and then chase out drop points in the walls (blockwork) and install microbore to the radiators. I am not familiar with microbore and am not sure how well this would work. Can anyone point me in the direction of some info on installing microbore (pipe size, velocity calcs etc.) and is this a viable option?

Your advice is much appreciated, any other ideas welcome.

I think your friends idea is a good one indeed. Probably all the info you need already on the plastic pipe manufacturers web pages eg hep2o, speedfit etc. The micro bore pipes run from the main pipes using a manifold.

I would make the system a pressurised (unvented) one (as are most modern systems run from a combi boiler).

The only disadvantage with this design is that every radiator will need a drain valve fitting, but thats not too bad.

(as are most modern systems run from a combi boiler).

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Not where I come from they don't , perhaps 1 in 50

the central heating system, not the hot water cylinder.

We do it that way here in brum cos we're all at the cutting edge.

I bet your northern combi's require the customer to start um with news paper and kindling every morning...........

I still have an open fire if thats what you mean.

As for Combi's I shall be fitting my second one next week.

Thanks for the advice guys.

Dave

I shall be fitting my second one next week.

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'Bout time you got some experience, what with all the shouting you do

ChrisR said:

I shall be fitting my second one next week.

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'Bout time you got some experience, what with all the shouting you do

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I don't care if I never see another Combi let alone fit one