WorksheetsCentral heating power point 1 2025
Total questions: 25
Worksheet time: 13mins
What does BS EN 12828 pertain to?
Manufacture of radiators
Design of water-based heating systems
Installation of electrical systems
Conservation of fuel and power
Which regulation is concerned with the conservation of fuel and power?
BS EN 14336
BS 442
Building Regulations part L
CHeSS
What is BS 442 related to?
Installation of water-based heating systems
Manufacture of radiators
Central Heating Efficiency System Specification
Design of electrical systems
What does CHeSS stand for?
Central Heating Efficiency System Specification
Central Heating Energy Saving System
Central Heating Electrical System Specification
Central Heating Environmental System
What does L1a refer to in the Building Regulations part L: Conservation of fuel and power?
In existing dwellings
In new dwellings
In new, other than dwellings
In existing, other than dwellings
Which section of the Building Regulations part L deals with existing dwellings?
L1a
L2a
L1b
L2b
What is the focus of L2a in the Building Regulations part L?
In new dwellings
In existing dwellings
In new, other than dwellings
In existing, other than dwellings
Which section of the Building Regulations part L applies to existing, other than dwellings?
L1a
L1b
L2a
L2b
What is the main purpose of central heating?
To provide light in every room
To provide thermal comfort within a property
To cool down the property
To improve air quality
How does central heating differ from an open fire?
Central heating provides heat in one room only
An open fire provides heat in every room
Central heating can give heat in every room
An open fire cools the property
What is thermal comfort?
The balance of light and darkness in a room
The desired heat balance between the body and surroundings
The cooling effect of air conditioning
The economic cost of heating
What is the main feature of full central heating?
It heats all rooms in a property at the same time.
It heats only selected rooms in a property.
It does not work when the outside temperature is -1°C.
It allows for individual room temperature control.
What distinguishes selective central heating from full central heating?
It heats all rooms in a property.
It allows the customer to select which rooms to heat.
It cannot reach the comfort temperature when outside is -1°C.
It is more energy-efficient than full central heating.
What are customers concerned about regarding heating systems?
Only the installation cost
Only the running cost
Both installation and running costs
Neither installation nor running costs
What are the two main categories of modern domestic central heating systems based on?
The type of fuel used
The way the system is filled with water and the pressure it operates at
The size of the house
The brand of the system
How are low pressure, open vented systems fed?
Directly from the mains cold water
From a feed and expansion cistern located at high level
Through solar panels
By a geothermal pump
Which type of system uses a three-port mid-position valve?
Y plan system
C plus system
S plan
Plan B
What size primaries are usually associated with gravity or semi gravity systems?
28mm
15mm
22mm
35mm
What type of systems are no longer installed but may be found in older properties?
Full gravity systems
Modern heating systems
Electric heating systems
Solar heating systems
In a one pipe gravity system, what is the purpose of the feed and expansion cistern?
To heat the water
To provide a reservoir for water expansion
To cool the water
To circulate the water
What is one advantage of a one pipe gravity system?
High efficiency
Cheap to install
Controlled room temperature
Compliant with Building Regulations part L
What type of system is depicted in the diagram?
Two pipe semi gravity
Single pipe gravity
Three pipe forced circulation
One pipe semi gravity
What is one advantage of a two pipe semi gravity system?
Uncontrolled heat
Boiler cycling
All heat emitters reach the same temperature
Not compliant to Building Regulations part L
Which of the following is a disadvantage of a two pipe semi gravity system?
Cheaper to run
Quicker when heating up
Boiler cycling
All heat emitters reach the same temperature
What is included in the C plan two pipe semi gravity system?
Cylinder thermostat and zone control on the hot water
Solar panels and wind turbines
Geothermal heating and cooling
Electric heaters and fans
