Updates to document L1B and the Domestic Building Services Compliance Guide

Updates to document L1B and the Domestic Building Services Compliance Guide

Approved Document L1B and the Domestic Building Services Compliance Guide were both updated on 6 April 2018. The updated documents deliver guidance on compliance for building work carried out in England.

Approved Document L1B is a building regulation for England, regarding the standard for energy performance of new and existing buildings.

The Domestic Building Services Compliance Guide is a document which supports Approved Documents L1A and L1B

The changes apply in respect of:

  • Building notices given, full plans deposited or initial notices given on or after 6 April 2018
  • The contract for the provision of the work being agreed on or after 6 April 2018 in cases where no notification to a building control body is required.

The 2018 amendments to the Domestic Building Services Compliance Guide have introduced revised standards for gas fired and oil fired boilers being installed or replaced in existing dwellings.This effects Section 2 & 3 of the Domestic Building Services Compliance Guide.

To summarise the key changes for gas systems are as follows:

  • Seasonal space heating efficiency of the new boiler should be no less than ErP 92%
  • Time and temperature control required for all installations
  • All combinaton boiler installations must also include one of the following heating controls;
  1. Weather compensation
  2. Load compensation
  3. Flue Gas Heat Recovery
  4. Smart control with automation and optimisation

See the tables below for more detailed guidance (extracts taken from the Domestic Building Services Compliance Guide) or click here to see the Boiler Plus Policy Document.

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To summarise the key changes for oil systems are as follows,

  • Time and temperature control required for all installations
  • Install a boiler interlock

See the tables below for more detailed guidance (extracts taken from the Domestic Building Services Compliance Guide)

Table13


Article Published: 20/07/18

Elmhurst Energy Services Ltd. 16, St Johns Business Park, Lutterworth, Leicestershire, LE17 4HB

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