CDB CONSULTING ENGINEERS LIMITED - MECHANICAL, ELECTRICAL & PUBLIC HEALTH DESIGN ENGINEERS
We act as Expert Witness for the  
 
Institute of Domestic Heating and
                                        Environmental Engineers
 
 CENTAL HEATING, BOILER & PIPWORK INSTALLATIONS
 
We would firstly advise you that there are organisations which will give free advise on the matter, in particular C.O.R.G.I (Confederation of registered gas installers), 
 NOW called  GAS SAFE,( http://www.gassaferegister.co.uk)
should the installation be considered in breach of the Gas Safety (Installation and Use) Regulations currently in force.
 
If the gas boiler has been replaced, do you have the mandatory Gas Safe ,. gas completion certificates to ensure a full check on the existing gas installation complies with such regulations?
 
It is incumbent on the installer to ensure that any new connections/alterations or amendments to an existing gas supply, complies fully with the above regulations,..
 
 Are the installer’s sure that they have fully complied?
 
Did the the company ensure that the operatives carrying out the work, are all Gas safe registered. Should you find that either or both are not then this matter in itself is reportable to the health and Safety Executive, who will prosecute for the offence.
 
N.I.C.E.I.C (National inspection council for the Electrical contacting industry).
 ( http://niceic.com ) If any minor electrical works have been carried out to the central heating, do you have the mandatory NICEIC completion certificate? (Depending on the nature and extent of the electrical works carried out).
 
If the companies involved are members of organisations which have a redress policy, such as the Institute of Plumbers / The National association of Plumbing Heating and Mechanical Services contractors ( http://competanceoersonscheme.co.uk ) or the
Heating Ventilating Association ( http://www.hvca.org.uk ) as an example.
 
Then you could approach these member associations or similar to have the matter resolved.
 
 
There are however there are certain issues, which we can advise as detailed below, which we are happy to assist at no cost to you at this time providing you can assist in providing the information as detailed.
 
Do you have a written copy of the original quotation, offer and acceptance of the works involved, if at all applicable?
 
Have you fully paid for the installation, are there any monies outstanding?
 
Do you have the address of the Corgi / Gas Safe Registered central heating installer, Gas Safe registration number, operative’s names of the persons who carried out the work?
 
Can you advise the make /model of any new or existing boiler, manufacturer’s name plate details.
 
Exact dates of boiler installation, if know or approximate dates.
 
Details of pipwork, sizing, routing and connection details?
 
Exact dates of pipwork installation, if known or approximate dates?
 
Sizes of Radiators in each room, make model of radiators , if known?
 
Exact dates of radiators installed in each room, if known or approximate dates?
 
Details make model of radiator valves installed on each radiator and dates of when installed?
 
Can you confirm that there are sleeves fit through the walls around each of the pipes to allow for expansion. This is a mandatory requirement..
 
Can you confirm by way of photo’s the position of the boiler and boiler flue on the external wall, as this has to be a certain distance away from any window, gutter or rainwater pipe.
 
Has the flue been properly sealed on the inside and outside?
 
Details of the Gas meter, size, rating, position installation condition of the gas meter and pipwork?
 
Has the Gas meter been inspected and is it bonded to earth, min approx 10mm earth cable from the gas meter back to the electrical mains. This is a mandatory safety requirement under the Gas safety (Installation & Use) Regulations and must be fitted.
 
Can you provide photo evidence of the gas meter and earth bond size (if fitted)
 
Has the central heating pipwork been crossed bonded to earth, i.e., of approx 4mm green /yellow cable linked between each of the pipes by way of a correctly fitting pipe clamp. Can you confirm that this has been carried out? This is a mandatory requirement and should have been done.
 
Can you confirm by way of photo’s if any of the Gas pipe is fit externally. If so, is the pipe protected from being damaged, if it is fit less than 2 metres from finished floor level.
 
If the gas pipe is fit externally, Is the pipe painted Yellow ochre or indicated with “GAS” tape to indicate it’s use? This is a mandatory requirement under the above Gas Safety & Use Regulations.
 
Can you provide by way of photographic evidence of the outside of the house, all sides together with pictures of the central heating installation, all visible pipwork.
 
Sizes of each room, Length, width and height
 
Position make and model of header tank, details photographic evidence
 
Position make and model of hot water cylinder, details photographic evidence
 
Details / Sketches of pipe runs within the house /accommodation from the boiler to each radiator, including the position of the header tank, if fit and hot water cylinder, if fit.
 
Details make model of pump installation together with photographic evidence.
 
 
The above are an indications of what and other matters that we would be looking for to determine the general condition of the installation, the heat loss requirements of the house, the correct boiler and radiator size together with the correct pipe sizing and routing in association as to whether the installation complies with current regulations and standard practices.
 
 
Should you wish us to examine the above, together with taking the necessary photographic evidence as requested and copies of contract particulars’/ correspondence etc, then we obviously make a charge.
 
 
If you are prepared and can forward the above information onto us we will be happy to comment at no cost to you.
 
 
However any free advice by us is copywrite, for information and guidance only and cannot be used in any court of law without our written consent and/or until a fully verified inspection is carried out by our company.
 
Our current rates and payment details are given in a separate document, and careful consideration should be given should you consider taking any matters to any court hearing.
 
 
We trust the above is of some assistance and by all means should you have any further enquiry or require any assistance then please do not hesitate to either call or e-mail and we will be only too please to assist.
 
 
 
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