Design dry solid fuel installation

This standard is about designing the installation of dry solid fuel services and systems up to 50kW output that operate under negative flue pressure and those appliances without internal electronic control systems. It covers the design of all flue systems that are not made from plastic

This will include complying with the documentation and specifications, organisational requirements for performance and environmental outcomes in accordance with the work area and customer’s needs

This standard is for people working in the occupational area of Chimney Occupations and can be used by operatives, supervisors and managers

A description of terms in bold font in this National Occupational Standard can be found in the Glossary which should be used as a reference point

​Review intended requirements
P1 identify and clarify the key operating requirements and implications of the dry solid fuel installation
P2 evaluate  the potential for adaptation to accommodate new equipment where there is an existing system, site structures and features
P3 review the feasibility of proposed adaptations against documentation and specifications, technical, legal and cost criteria
P4 identify the relevant operating factors which will influence the design of the dry solid fuel installation for new systems
P5 ensure that a risk assessment is carried out for incorporation in planning, schedules of work, testing and commissioning procedures  
P6 review documentation and specifications for siting the dry solid fuel installation and the impact this will have on the final design
P7 ensure your plans allow access for service, maintenance and repair to meet the documentation and specifications
P8 identify different design options for evaluation which meet documentation and specifications and organisational procedures, including:•  assessing the work area •  the level of heat output required•  environmental impact P9 discuss the different design options with all relevant parties to establish if they are technically feasible and cost-effective including:•  providing full information and options available to all relevant parties for them to make an informed decision  Select design options for the dry solid fuel installation
P10 agree and fully cost a plan of action including the removal and disposal of any equipment or material that is to be replaced or will no longer be part of the installation
P11 ensure your design meets the key operating requirements identified from inspection reports and site surveys with particular reference to environmental outcomes
P12 perform calculations to determine the required heat output, flue performance and ventilation requirements
P13 include a means of detection of Carbon Monoxide release from the dry solid fuel installation into the design to the meet the documentation and specifications
P14 ensure that sufficient data is left with the dry solid fuel installation and is permanently available to meet the documentation and specifications
P15 introduce all appropriate measures for the safe removal and disposal of existing equipment which comply with current legislation
P16 agree the final design with all relevant parties ensuring it is compliant with the documentation and specifications
P17 obtain and record the agreement on the design proposals from all relevant parties
P18 produce drawings, specifications, schedules of work, component lists, testing and commissioning procedures
P19 select all the materials and equipment identified by the drawings, specifications, schedules of work, component lists, testing and commissioning procedures along with purchasing options including cost and lead time information
P20 arrange for all materials and equipment to be provided to meet contract requirements and the project program
P21 amend the design to account for unforeseen issues, update all relevant parties, agree any alterations to time schedules and update design records

P1 Review intended requirements
K1 all relevant health, safety and environmental factors including how to carry out a risk assessment
K2 the documentation and specifications and organisational procedures

K3 different types of dry solid fuel installations, their performance, application and environmental capabilities
K4 different types of dry solid fuel appliance, their usage and fuel types
K5 how to identify the requirements from inspection reports, site surveys, documentation and specifications and organisational procedures
K6 all technical criteria for adapting existing equipment
K7 the ways of costing and scheduling equipment adaptations
K8 appropriate alternative ways to meet the requirements
  
K9 the importance of getting agreement to the design proposals from all relevant parties
K10 the principles of combustion to include:•  adequate fuel quality•  combustion temperature•  sufficient combustion air•  combustion performance effects on emissions K11 the principles of chimney flue draft and design:•  mechanical ventilation•  natural flue draft•  forced flue draft•  adequate chimney draft to evacuate the products of combustion•  effective flue height•  effective flue area•  impact of bends and restrictions•  impact of flue outlet position•  interaction with building envelope and topography•  meteorological effects K12 why it is important to provide a means of detection of Carbon monoxide (CO) release from the dry solid fuel installation
K13 why it is important to ensure that sufficient data is left with the dry solid fuel installation and is permanently available
P2 Select design options for the dry solid fuel installation
K14 how to interpret and apply inspection reports, site surveys, the documentation and specifications and organisational procedures to enable selection of the design options
K15 how to calculate the performance of components to meet the heat output, flue performance and ventilation requirements
K16 methods of presenting design information to customers, users, installers and all relevant parties by means of drawings, specifications, schedules of work, component lists, testing and commissioning procedures
K17 the range of information that is required to carry out design work across new and existing buildings, domestic and commercial   K18 positioning requirements for dry solid fuel installations and standard system layouts including flue termination position K19 the access requirements to allow service, maintenance and repair of dry solid fuel installations
K20 how to select components with the correct flue designation for the application
K21 how to provide suitable isolation of other services connected to the installation

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Organisational procedures
Organisational
Insurances – public, product and employers liability, professional indemnity
Company documents
contract for the work, safety management plan, Construction Design and Management regulations, environmental policy, complaints procedure, information privacy and security policy, management structure
Work area
The area where the equipment will be installed and all areas affected by the work extending to topographical features and meteorological conditions
Services and systems
Chimney and flue systems, appliances, ventilation systems and appropriate utilities
Documentation and specifications
Manufacturers’ instructions for all equipment that forms part of the work
architect’s plans and site-specific documentation
local building rules and regulations
Party Wall legislation
Clean Air Act
Environment Act
Smoke Control Zones
Permitted Development
Conservation Areas
Heritage status
Areas of Outstanding Natural Beauty
Sites of Special Scientific Interest
specific requirements of insurance underwriters
Building regulations in England and Wales, particularly ADJ but also ADA, ADB, ADF, ADL and AD7
Building Standards Technical Handbook in Scotland
Technical Booklets in Northern Ireland, particularly B, D, E, F1, F2, K and L
BSEN’s particularly 8303, 15287, 1856, 16510, 1251, 3376, 4834, 12815, 13229, 13240, 15250
Note: Technical and BSEN documents may be withdrawn or superseded during review programmes, it is therefore important to check the currency and validity of all such documents to ensure the correct version is being referenced.
Appliances
Solid fuel burning appliances up to 50kW output including but not limited to the following:
•  open fires
•  free standing room heaters
•  inset room heaters
•  free standing cookers
•  independent boilers
•  slow heat release stoves