Phase4mod4 vent

The purpose of the top vent installed within a compartment is to:

• Assist the pull of the flue.

• Supply air for combustion.

• Remove warm air cooling.

• Reduce the pull of the flue.

The ventilation requirement for open flued appliances is dependent upon:

• Heat input.

• Heat output

• Room dimensions

• Flue height

If both appliances mentioned in 7 and 8 were fitted in the kitchen , what is the vent free area ,in addition to the openable window, required?

• 100cm²

• 145cm²

• 245cm²

• 290cm²

A gas fire and a back boiler of inputs 7kw(gross) and 16kw(gross respectively has recently been fitted in a bedsitting room. What is the ventilation requirement?

• 37cm²

• 68.6cm²

• 120cm²

• Installation not allowed.

What action should the gas operative take if an air vent ,of adequate size but fitted with a fly screen , is encountered?

• Install another air vent of the same size with a fly screen.

• With the users permission remove the fly screen.

• Leave the vent and instruct the user to clean regularly.

• Disconnect the appliance and label.

A room sealed boiler with a range rated burner from 16kw to 21kw (net) is fitted in a compartment and set at 18.5kw (net).What are the required vents to direct outside?

• 51.75cm² both top and bottom.

• 70cm² both top and bottom.

• 92.5cm² both top and bottom.

• 105cm² both top and bottom.

An open flued combination boiler with hot water input of 36kw(net) and heating input of 21kw(net) is fitted within a kitchen measuring 2.5m by 2.2m by 1.8m. What is the vent free area required?

• 70cm²

• 130.5cm²

• 145cm²

• 180cm²

A tumble dryer with an input of 5kw(net) is fitted in the kitchen an question 7. An openable window is needed, but what is the additional vent free area required?

• 35cm²

• 50cm²

• 100cm²

• No vent is required.

When an air vent is installed on the inside wall of a property, the vent must be sited:

• Not less than 450mm from floor level.

• Not more than 450mm from floor level.

• Not more than 450mm from ceiling level.

• Not less than 450mm from ceiling level.

A room sealed combination boiler with hot water input of 33kw (gross) and heating input of 25kw (gross) is fitted in a kitchen measuring 2.5m by 2.5m by 1.8m What is the vent free area required?

• 117cm²

• 113.6cm²

• 120cm²

• No vent required