BS CP1018(1971) : 1971

Foreword
1. GENERAL
1.1 Scope
1.2 Exchange of information
1.3 Drawings, records and advice to users
1.4 Related publications: British Standards, Codes of
      Practice, Regulations, etc.
2. BASIC PRINCIPLES
2.1 General
2.2 Heat requirements and electrical input
2.3 Transmittance coefficients of building elements
2.4 Floor and room temperatures
2.5 Temperature swing
2.6 Thermal insulation of warmed floors
2.7 Floor finishes
2.8 Internal temperatures
2.9 External temperature
2.10 Ventilation
2.11 Heating emission from floor surfaces
2.12 Optimum floor temperatures
2.13 Comfort effect of warmed floor
2.14 Cables
2.15 Essential precautions
3. HEAT REQUIREMENTS
3.1 Estimation of heat requirements
3.2 Structural heat loss
3.3 The ventilation heat loss
3.4 Design values of the room temperature
3.5 Design value for basic external temperature
3.6 Floor surface temperatures
3.7 Electrical input
3.8 Design procedure
4. ELECTRICAL REQUIREMENTS
4.1 Systems available
4.2 Panel layout
4.3 Selection of cables
4.4 Technique
4.5 Cable laying
4.6 Monolithic floors, withdrawable system
5. BUILDING REQUIREMENTS
5.1 Structural design
5.2 Floors and floor finishes
5.3 Drying out
6. TEMPERATURE CONTROL
6.1 General
6.2 'Off-peak' and 'time-of-day' rates
6.3 Installations supplied under time-of-day rates
6.4 Types of control
6.5 Control of installations
6.6 floor thermostats
6.7 Seasonal energy consumption
6.8 Estimate of seasonal energy consumption
6.9 Energy consumption: further information
6.10 General considerations of energy consumption
7. COMMISSIONING THE INSTALLATION
7.1 Commissioning
7.2 Setting up the control system
7.3 Details of installation
8. MAINTENANCE
8.1 General
8.2 Inspection and testing
TABLES
1. Recommended internal temperatures for design
      purposes
2. Ventilation rates
3. Infiltration rates for office-type buildings
4. Maximum operating conductor temperatures for
      floorwarming cables
FIGURES
1. Solid ground floors. Horizontal insulation over
      total floor area plus vertical edge insulation
2. Concrete suspended floors. Continuous thermal
      insulation and acoustic insulation below screed

Provides guidance on the design and construction of electric floorwarming systems for use with off-peak supplies of electricity. Covers drawings, records and advice to users, basic principles, heat requirements, electrical requirements, building requirements, temperature control, commissioning the installation and maintenance.