Calculating Costs (Leaving Cert Construction Studies): Quizzes

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Calculating Costs
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Which variable is NOT mentioned as affecting heating cost calculations?

Number of occupants

By what percentage can reducing thermostat settings save on household energy costs?

Up to 10%

Which is listed as a long-term investment for reducing heating costs?

Install double/triple glazing

What is the formula for calculating total heat loss?

UU-value ×\times area ×\times temp diff

What does one watt equal in terms of energy transfer?

One joule per second

What unit is heat loss measured in?

Watts

What formula converts heating period to seconds?

weeks ×\times days ×\times hrs ×\times 60 ×\times 60

What is the formula for annual energy consumption?

(Heat loss ×\times period) ÷\div 1000

How is fuel consumption calculated?

Total energy ÷\div calorific value

What must overall heat loss calculations account for beyond individual elements?

Air infiltration and ventilation

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U-Values

Insulation and Ventilation

Insulation and Ventilation

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U-Values

Insulation and Ventilation

Insulation and Ventilation

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U-Values

Insulation and Ventilation

Insulation and Ventilation

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U-Values

Insulation and Ventilation

Insulation and Ventilation

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