TR38 Installation of Biofuel Preview

Building Engineering Services AssociationGuide to good practice: InstallatIon of BIofuel HeatIng TR/38 www.theBESA.com

Building Engineering Services AssociationGuide to good practice: AcknowledgmentsInstallatIon Many thanks to the following for their valued inputof BIofuel and time: -HeatIng Dick Bradford, Robert Burke, Dave Hardwicke, gerald Israel, Chris Miles, Martin Murrish, terry TR/38 seward, Kevin stones and Peter Wilkins. this publication has been written by Chris laughton on behalf of Besa (formerly the HVCa) and has been reviewed by BsRIa, CIBse, BRe, feta, Hetas, Rea and the Besa technical Committee. Biofuel is an increasingly important technology space heating and hot water in all types of buildings. this guide will underpin the development of a Competent Person scheme and Inspection and assessment regime for Besa Members Consultant: Chris laughton secretary: alan Keating IsBn 0-903783-60-6 first Issued June 2008 ©2008 Besanote - this document is based on BESA Publicationsknowledge available at the time of old Mansion Housepublication and is meant for general eamont Bridgepurposes, not for reliance on in Penrith Ca10 2BXrelation to specific technical or 01768 860405legal issues, in which case you should [email protected] seek independent advice onsuch issues. www.theBESA.comno responsibility of any kind for anyinjury, death, loss, damage or delayhowever caused, resulting from theuse of the advice recommendationscontained herein, is accepted by theauthors or others involved

Building Engineering Services AssociationGuide to good practice: ForewordInstallatIon the need to address energy usage and in particular theof BIofuel associated carbon emissions created by its genera-HeatIng tion and consumption, has caused those responsi- ble for the design, installation and operation of TR/36 buildings to review many of the traditional methodologies. Regulations and in some cases client requirements, are demanding more innovative solutions to the provision of heating, hot water generation, cooling and electricity generation. Invariably such solutions lie in new applications of existing and proventechnologies, but the skill is in knowing when they are appropriate and how to make them efficient. the low carbon rating of biomass is very attractive for meeting emission targets but its suitability has to be carefully evaluated. Whilst using Biomass as a fuel has had limited application in the uK in the past, its development has continued in europe where there is less dependency on a gas infrastructure. Consideration of the use of biomass should now be made in the knowledge of the current developments and requirements which this guide is intended to provide. although independent of any manufacturer, this guidance is not intended to supersede design data or instructions provided by suppliers, whose recommendations should always be followed. the guide is intended to be part of a suite of publications covering generic installation requirements for a range of renewable energy systems including solar hot water, heat pumps and CHP. It draws on the wide range of existing Besa publications covering good practice in building engineering systems. Graham Manly former Besa technical Committee Chairman www.theBESA.com

Guide to Good Practice Installation of Biofuel HeatingCONTENTSACKNOWLEDGEMENTS Page 1FOREWORD Page 3 Page 91.1 Objective Page 9 Page 91.2 Standard of workmanship Page 9 Page 101.3 Quality assurance Page 10 Page 101.4 Scope Page 10 Page 111.5 Operating Conditions Page 11 Page 111.6 Description of service Page 12 Page 121.6.1 Conventional Feed and Expansion T ank Systems Page 13 Page 141.6.2 Pressurised Closed Circuit System Page 14 Page 151.6.3 Gravity Circulation Systems Page 16 Page 161.6.4 Fully Pumped Systems Page 16 Page 171.7 Publication review Page 19 Page 192 OUTLINE CONSIDERATIONS Page 19 Page 192.1 T ypes of fuel Page 20 Page 202.2 T ypes of applications2.3 The combustion of wood fuels2.4 T ypes of appliances2.5 Methods of wood fuel delivery and storage2.6 Fuel delivery V ehicles2.7 Methods of wood fuel transmission to appliances2.8 Connecting ue pipes2.9 Chimneys2.10 Ash disposal2.11 Bu er tanks2.12 Controls2.12.1 Combustion controls2.12.2 System controls2.12.3 Safety controls 5

Guide to Good Practice Installation of Biofuel Heating Page 22 Page 232.13 Replacement and conversion appliances Page 233 APPLIANCES Page 233.1 Appliance T ypes Page 243.2 Appliances Locations Page 244 SPECIFICATION DETAILS Page 254.1 Detailed storage requirements Page 254.2 Detailed Wood Pellet Speci cation Page 264.3 Detailed Wood Briquette Speci cation Page 264.4 Detailed Wood Chip Speci cation Page 274.5 Detailed Wood Log Speci cation Page 274.6 General pipework requirements Page 274.7 Accessories and pipeline ancillaries Page 275 COMPLETION Page 285.1 T esting - chimneys and connecting ue pipes Page 285.2 T esting - combustion Page 285.3 T esting - hydraulic Page 285.4 Flushing, cleaning and water treatment Page 285.5 Thermal insulation Page 305.6 Commissioning and hand over Page 306 BIBLIOGRAPHY AND SOURCES Page 306.1 BESA Publications Page 306.2 CIBSE Publications Page 306.3 BISRIA Publications Page 306.4 Standards speci c to wood fuel heating Page 306.5 Standards for solid fuel appliances with boilers Page 306.6 Standards for other solid fuel appliances Page 316.7 Standards for ues or chimneys Page 316.8 General Standards for heating Page 326.9 Standards for wood Fuel6.10 Abbreviations Page 336.11 Miscellaneous6

Guide to Good Practice Installation of Biofuel HeatingT ABLES Key Qualities - Guidance Page 10T able 1 V ehicle Dimensions - Guidance Page 12T able 2 Page 14T able 4 Page 15T able 5 Page 16T able 6 Page 16T able 7 Page 23T able 8 Page 23T able 9 Page 24T able 10 7