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  • PublisherDBSP
  • Product CodeHVDH
  • Number of pages166
  • Publication DateApr 2017
  • ISBN9781906846350

HVDH Domestic Heating Design Guide

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HVDH Domestic Heating Design Guide

On 1 April 2017, CIBSE became the primary stockist of Domestic Build Services Panel publications. Purchases can be made using the relevant buttons above. Members of the Panel wishing to make bulk purchases at their special rates should email pubsales@cibse.org, telephone +44 (0)20 8772 3618 or by mail to Publications Sales (DBSP orders), c/o CIBSE 222 Balham High Road, London SW12 9BS. 



Domestic heating has extensive implications for energy efficiency and the environment, topics that continue to gain prominence as issues related to them grow in national importance.

The Domestic heating guide was produced by the Domestic Building Services Panel to assist professional heating engineers to specify and design wet central heating systems. It provides a method of coming to agreement with the client as to what is needed and will be provided. It also provides a simple means for the practitioner to design and understand central heating systems. This latewst version is an April 2017 reprint contains small revisions made to previous editions..

Contents:

Foreword

1.0 Introduction
1.1 Objective
1.2 Specification
1.3 Scope
1.4 Installation

2.0 Abbreviations
3.0 Establishing the Client’s Requirements
3.1 General Requirements
3.2 Fuel Choice
3.3 Heating Requirements
3.4 Ventilation
3.5 Heat Generators
3.6 Boilers, Flues, & Attachments
3.7 Heat Pumps
3.8 Solid Fuel Wood & Biomass Appliances
3.9 Oil Fired Appliances
3.10 Heat Emitters & Their Location
3.11 Pipework
3.12 Controls
3.13 Domestic Hot Water
3.14 Plumbing Services
3.15 Existing Systems
3.16 Energy Efficiency

4.0 Energy Efficiency
4.1 What Energy Efficiency Means
4.2 Environmental Impact
4.3 Primary & Delivered Energy
4.4 Why Energy Efficiency is Important
4.5 The Standard Assessment Procedure (SAP - UK) & Dwelling Energy Assessment Procedure (DEAP - R.O.I.)
4.6 Boiler Efficiency
4.7 SEDBUK
4.8 Condensing (High Efficiency) Boilers
4.9 Hot Water Storage Cylinders
4.10 Buffer Tanks & Thermal Stores
4.11 Controls
4.12 Specifying Efficient Systems

5.0 Heat Losses & U-Values
5.1 Basic Principles
5.2 Calculation of Heat Transfer
5.3 Ventilation & Natural Infiltration Heat Loss
5.4 Calculation of Fabric Heat Loss
5.5 Calculation of U-Values
5.6 Example Calculation
5.7 Complex Structures
5.8 Ground Floor U-Values
5.9 Building Regulations

6.0 U-Value Tables

7.0 Ventilation in Living Space
7.1 Ventilation Requirement
7.2 Minimum Requirements for Ventilation
7.3 Fan Duty Selection
7.4 Whole House Mechanical Ventilation
7.5 Combustion Air & Ventilation Requirements for Heating Appliances

8.0 Heat Loss Calculation
8.1 Introduction
8.2 Room Design Temperature Requirements
8.3 External Design Temperatures for the UK
8.4 Room Temperatures & Air Changes per Hour
8.5 Rooms with Chimneys & Open Flues
8.6 Building Exposure
8.7 High Ceilings
8.8 Adjoining Properties
8.9 Intermittent Heating

9.0 Heat Loss Worksheet Procedures & Calculations
9.1 Heat Loss (Watts)
9.2 Design Temperatures & Ventilation Rates
9.3 Allowances for High Ceilings & Intermittent Heating
9.4 Windows, Doors & Roof Glazing
9.5 Party Walls
9.6 Annual Energy Estimation
9.7 A Worked Example

10.0 Heating System Design
10.1 General
10.2 Heating System Water Temperature
10.3 Radiator Selection
10.4 Output Emission Factors
10.5 Radiator Sizing
10.6 Exposed Pipework Emissions
10.7 Underfloor Heating

11.0 Sizing the Heat Source
11.1 Heat Generator Output
11.2 Heat Generator/Boiler Sizing Method

12.0 Domestic Hot Water Supply
12.1 Hot Water Sources
12.2 Choice of System
12.3 Hot Water Storage Cylinders
12.4 Combination Boilers
12.5 Thermal Stores & Combined Primary Storage Units
12.6 Unvented Hot Water Cylinders
12.7 Secondary Circulation
12.8 Trace Heating
12.9 Hard Water
12.10 Dead Legs

13.0 System Layouts & Pipe Sizing
13.1 Typical System Layout
13.2 One-Pipe Circuits
13.3 Reverse Return System
13.4 Avoiding Reversed Circulation
13.5 Pipework Sizing Strategy
13.6 Pipe Sizing Design: Method Statement
13.7 Frictional Resistance
13.8 Pipework Sizing Example
13.9 Pressure Loss Calculations
13.10 Index Circuit Selection
13.11 Cylinder Connections
13.12 Quick Pipework Sizing
13.13 Multiple Boiler Connections Via Low Loss Header

14.0 Circulator Selection
14.1 Circulator Sizing
14.2 Worked Example
14.3 Circulator Position
14.4 System Fault Diagnosis
14.5 Boiler Noise
14.6 System Noise
14.7 Isolating Valves
14.8 Integral Circulator
14.9 HWS Secondary Return Circulators

15.0 Open Vented Systems
15.1 Feed & Expansion, and Safety Pipework
15.2 Feed & Expansion Cistern
15.3 Feed & Expansion Pipe
15.4 Open Safety Vent Pipe
15.5 Pipework Arrangement
15.6 Close Coupled Feed & Expansion & Open Safety Vent Pipe
15.7 Combined Feed & Expansion and Open Safety Vent Pipe
15.8 Water Treatment

16.0 Sealed Heating Systems
16.1 Basic
16.2 System Components
16.3 Expansion Vessel
16.4 Safety (Pressure Relief) Valve
16.5 Pressure Gauge & Thermometer
16.6 Filling Loop
16.7 Water Top-Up
16.8 Top-Up Unit
16.9 Make-up Cistern
16.10 Automatic Air Vents
16.11 Sealed Boiler Systems
16.12 Expansion Vessel Sizing
16.13 Water Treatment

17.0 Pipework Insulation
17.1 Regulations
17.2 Insulation of Heating System Pipework
17.3 Insulation in Unheated Areas

18.0 System Controls
18.1 Control Selection
18.2 Control Components
18.3 Recommended Control Systems
18.4 Enhanced Control Functions
18.5 Typical Control Arrangements
18.6 By-Pass Arrangements
18.7 Three-Way Control Valves
18.8 Two Separate Zone Valves
18.9 Additional Zone Control
18.10 Primary Circuit Radiator
18.11 Compensating Controls
18.12 System Integration

19.0 Combustion Air, Ventilation & Flues
19.1 Air Supply Requirement
19.2 Interaction of Extract Ventilation & Open-Flued Appliances
19.3 SE-Ducts & U-Ducts
19.4 Ventilation & Heat Pump Refrigerant Safety

20.0 Fuel Storage
20.1 Oil Storage
20.2 LPG Storage
20.3 Wood Pellet Storage

21.0 The Specification
21.1 The Quotation
21.2 Design Conditions & Temperatures
21.3 Incoming & Existing Services
21.4 Heat Generators
21.5 Boiler Flue & Chimney
21.6 Condensate Drain Provision
21.7 Fuel Storage
21.8 Ventilation
21.9 Heat Emitters
21.10 Heat Emitter Controls
21.11 Hot Water Cylinder
21.12 Electric Immersion Heater
21.13 Circulators
21.14 Feed & Expansion Cistern
21.15 Sealed System Equipment
21.16 Programmers & Controls
21.17 Electric Wiring
21.18 Pipework
21.19 Insulation
21.20 Water treatment
21.21 Building Work
21.22 Waste & Scrap
21.23 Variations to Contract
21.24 Commissioning & hand-Over procedure
21.25 Programme of Works
21.26 Qualifications of Each Operative
21.27 Guarantees
21.28 Extended Warranty & Breakdown Insurance
21.29 Health & Safety
21.30 Conditions of Contract

22.0 Hand Over & Future Service
22.1 System Operation Explained
22.2 Safety Instructions
22.3 Written Instructions
22.4 Guarantees
22.5 Benchmark
22.6 Competent Person Schemes
22.7 Future Service
22.8 Special Tools

23.0 Schedule of Installed Equipment
23.1 Equipment Record
23.2 Record Drawings
23.3 Emergency Contacts

Appendix A Legislation Relating to the Building Regulations in the United Kingdom & Ireland

Appendix B Controls for Domestic Central Heating Systems - Definitions

B1 Time Switch
B2 Programmer
B3 Room Thermostat
B4 Night Setback
B5 Programmable Room Thermostat
B6 Delayed Start
B7 Optimum Start
B8 Optimum Stop
B9 Cylinder Thermostat
B10 Programmable Cylinder Thermostat
B11 Weather Compensator
B12 Load Compensator
B13 Boiler Energy Manager
B14 Boiler Anti-cycling Device
B15 Boiler Thermostat
B16 Boiler Auto Ignition
B17 Boiler Modulator (water temperature)
B18 Boiler Modulator (air temperature)
B19 Pump Over-run
B20 Pump Modulator
B21 Motorized Valve
B22 Automatic Bypass Valve
B23 Thermostatic Radiator Valve
B24 Frost Thermostat
B25 Pipe Thermostat
B26 Boiler Interlock
B27 Zone Control
B28 Temperature and Time Zone Control (or full zone control)
B29 Self-adaptive (or self-learning) control
B30 Simplified descriptions of the functions of the main types of heating control for use in explaining systems to customers

Appendix C Standards & Guidance Documents Relating to Domestic Heating Installations
Appendix D Conversion Factors
Appendix E Details of Organisations from Whom this Guide is Available
Appendix F Blank Copies of the Worksheets Used in This Book
Appendix G Heat Pumps

The Domestic Building Services Panel's website can be found here