Household Advice

This Year 2005 there are new changes that will affect us all in respect to Heating.

Installation and conversion of gas systems are now under the building regulations part J & L and fitting must conform to these standards and all of our engineers have passed the competence standards and hold a Certificate in Energy Efficiency for Domestic Heating.

Extracts from the paper issued from The Office of the deputy Prime Minister.

Gas and oil central-heating boilers Advice to householders

From 1 April 2005, we are raising the energy performance standard for new and replacement gas-fired hot-water central-heating boilers. From that date, in normal circumstances when you plan to install a new boiler or replace an existing one, you will need a condensing boiler to meet the higher standards for energy efficiency.

Why is this change being made?

You have probably heard about climate change caused by the increasing amounts of carbon dioxide being released into the atmosphere. Around 16% of the carbon dioxide that the UK produces comes from the gas and oil boilers that we use to heat our homes. We are raising performance standards because condensing boilers are more efficient, just as reliable, less costly to run and they produce less carbon dioxide.

What is a condensing boiler?

Condensing boilers are more efficient than ordinary boilers and so produce less carbon dioxide while still meeting heating needs. They reduce the amount of heat that escapes up the flue, compared with ordinary boilers. Condensing boilers convert 86% or more of the fuel they use into useful heat and many carry the ‘Energy Efficiency Recommended’ logo. Older types of ordinary boilers may convert as little as 60% of the fuel to useful heat.

Do I have to change my boiler now?

No. The new standards apply only if you decide to change your existing hot-water central-heating boiler or if you decide to change to one of these boilers from another form of heating system.

Are condensing boilers more expensive than normal boilers?

They may be more expensive to install, but you will: save money on your heating bills; and help to tackle climate change.

Do I have to have a condensing boiler?

No. You should have a condensing boiler fitted if it is reasonable to do so, but the law recognises that non-condensing boilers are acceptable if it would be too difficult to install a condensing boiler in your home. Your installer will tell you whether your circumstances are too difficult.

How will installers decide whether my circumstances are too difficult?

They will use the assessment procedure given in the Building Regulations Approved Document L1, which you can see in libraries or on our website (

If I need a new boiler, what should I do?

Choose a qualified central-heating installer who understands the new standards and can advise you on the type of boiler you should have fitted.

What if I have already ordered a non-condensing gas boiler before 1 April 2005?

You will still be able to have it installed as long as installation is completed by 30 June 2005.

Choosing an installer

For gas-fired boilers, the installers you employ must be CORGI registered as a safety requirement, and they should also be capable of installing condensing boilers. (CORGI is the Council for Registered Gas Installers.)

How do I know if my installer is capable of fitting condensing boilers?

In all cases, check that your installer has recent qualifications in energy efficiency. If your installer is CORGI or OFTEC registered, those organisations can confirm this. If not, you will need to ask your installer if they hold a Certificate in Energy Efficiency for Domestic Heating or an equivalent qualification.

Extracts Published by the Office of the Deputy Prime Minister. ©Crown copyright 2005. Printed in the UK , April 2005

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