New Boiler - Installation

ArtyA

Part of the renovation of our new home requires a new heating and hot water system. We already have all new pipework,, radiators, TRVs and bypass valve. Also pipes and fittings to bathroom, ensuite, second WC, washroom and kitchen.

Now we need the new boiler (combi) to be installed and commissioned by a professional. Questions:

Can we buy the boiler or should the installer supply it?
If we purchase the boiler, can we mount it on the wall ready for the installer?
Can the installer provide a certificate even though he only installed the boiler and gas and not rads etc?

Any advice welcome.

Thanks.

darkcloudi

ArtyA wrote: »

Can we buy the boiler or should the installer supply it?

You need to check with the installer. As some installers would recommend them providing one in case problems arise when installing the boiler you provide.

ArtyA wrote: »

If we purchase the boiler, can we mount it on the wall ready for the installer?

Again as above you need to check with the installer.

ArtyA wrote: »

Can the installer provide a certificate even though he only installed the boiler and gas and not rads etc?

Shouldn't be a problem, since its the boiler that needs to be signed off. However, if you are installing a new boiler on a new system probably be good to do a power flush in case there is sludge in the system.

EliteHeat

The installer is signing off / notifying the installation of the gas line, the flue and the physical mounting or installing of the boiler.

Corgis cannot legally notify a privateers work and are responsible for the safety and integrity of the system.

The wet side of the works has nothing to do with gas safety.

Out of interest, where and why did you install the bypass?

ArtyA

darkcloudi:
I'll talk to a couple of installers. Thanks for the power flush advice.

EliteHeat:
If I understand you correctly, I can get a certificate through using a Corgi installer because it's only the gas/flue side that's notifiable, the wet side isn't a concern.
The Bypass? Like most, I researched it a lot, (www+books) and found lots of different reasons, some of which are probably wrong, but on the whole it seems better to have one than not. It's mounted across the f/r about 0.5m from the boiler before any rads. Interested to know if you have other info on this. ref: http://europe.hbc.honeywell.com/finland/pdf/du144-pd-en0h0322ge25r1005.pdf

EliteHeat

Most, if not all, naturally pressurised boilers have an internal bypass so strictly speaking an external one is not necessary.

Always best to have one though and it sounds like you've done a decent job.