Calculating Costs (Leaving Cert Construction Studies): Flashcards

$\text{U-value} \times \text{area} \times \text{temp difference}$

Up to 10% on household energy costs

Watts

1 joule of energy per second

$\frac{\text{Heat loss} \times \text{heating period}}{1000}$

$\frac{\text{Total energy}}{\text{calorific value}}$

$\text{Fuel consumption} \times \text{price per litre}$

Heat loss through individual building elements

Heating specific rooms whilst leaving others unheated

Reduces heat loss through windows