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Central Heating

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Pipework

Pipework Sizing

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Maintenance

Commissioning

Heating system water analysis

Servicing

Controls

Circulating Pump

Heating System Controls

Minimum Requirements

Room Thermostats

Regulations

Regulations

Heat Emitters

Heat Loss Calculation

Radiator Sizing

Types

Pipework

Fully Pumped Hot Water and Central Heating

Gravity Hot Water and Pumped Central Heating

Gravity System

Open-vented System

Pipework Sizing

Pipework Systems

Sealed Systems

System Layout

Underfloor Heating

Boilers

Boiler Sizing

Flue Types

Gas Boilers

Heat Pumps

Oil Fired Boilers

SEDBUK Rating

Solid Fuel Boilers

Sizing

  • Heat (kW) = Flow rate (kg/s) x 4.2 x Temperature difference (10°C)
  • Effective Pipe Length = pipe length x 0.33 (average number of bends)
Loading capacity of pipes:
Copper pipe (OD) Approx. Loading
8 1.5kW
10 2.5kW
15 6kW
22 13kW
28 22kW
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