Fireplaces construction

What is a constructional hearth?

• A wooden base for a fireplace
• A non-combustible floor for a fireplace
• A decorative element around a fireplace
• A metal grate inside a fireplace

What is the minimum thickness required for a constructional hearth?

• 100mm
• 125mm
• 150mm
• 200mm

How far must a constructional hearth project in front of the fireplace jambs?

• 300mm
• 400mm
• 500mm
• 600mm

What is a chimney breast?

• The topmost part of a chimney
• A projection on a wall enclosing a fireplace or flue
• The base of a chimney stack
• A decorative mantel around a fireplace

What is the minimum thickness of the jambs of a chimney breast?

• 1 brick (200mm)
• 1.5 bricks (300mm)
• 2 bricks (400mm)
• 2.5 bricks (500mm)

What is the purpose of a throat lintel?

• To decorate the fireplace
• To form the fireplace recess and support the flue liner
• To clean the flue
• To hold the chimney pot in place

What determines the size of the flue liner required?

• The size of the chimney stack
• The size of the fireplace opening
• The material of the chimney
• The height of the chimney stack

What is the function of a flue liner?

• To decorate the inside of the flue
• To prevent condensation or gases from escaping the flue
• To support the chimney pot
• To make the chimney taller

What was the purpose of parging a flue?

• To stop sulphur from attacking the bricks
• To make the flue taller
• To improve the fireplace’s appearance
• To support the chimney stack

What is vermiculite insulation used for?

• To decorate the fireplace
• To provide thermal insulation for high temperatures
• To support the chimney pot
• To clean the flue