a) A gas low pressure hot water heating boiler is to be used to heat a dwelling with hot water
radiators. A floor plan of the dwelling is as follows.

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The ceiling height is 2.4m.
The radiators are sectional and each section has an output of 199 watts.
For bedrooms allow 40 watts/m3 of air space.
For living areas allow 50 watts/m3 of air space.
Showing all working calculate how many radiator sections are required for:
Bedroom 1
Bedroom 2
Bedroom 3
Lounge room
Kitchen/Dining room

b) The gas boiler for this installation has an efficiency rating of 83%. Calculate the input rating
of the boiler that is required.




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