Calculating Costs (Leaving Cert Construction Studies): Flashcards

Up to 10% of household energy costs

Heating specific rooms whilst leaving others unheated

$U \times \text{area} \times \Delta T$

Watts

One joule of energy per second

Double or triple glazing

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

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

Heat loss through individual building elements

$\text{weeks} \times \text{days} \times \text{hours} \times \text{minutes} \times \text{seconds}$