Tips on hot water
How can we make better use of our hot water?
House heating
Icelandic homes use annually on average 4-5 tons of hot water per m2. About 90% of its use are due to central heating and we use the rest for other things, such as taking a bath or shower, clean the home and do the dishes.
Usage
Reference Table for calculating the utilization of hot water.
- The index represents tons of water per cubic meter in the house of the year.
- The lower value is the criteria for a well-insulated house with a well-configured heating systems.
- Higher value corresponds to normal use for a house in reasonable condition.
- To find the volume of a house can be multiplied by a factor of 3.3 in square meters.
| Property type | Usage index m3 |
| Large apartment buildings | 1,0 - 1,4 |
| Smaller apartment buildings | 1,1 - 1,5 |
| Single family home | 1,2 - 1,8 |
| Commercial buildings | 0,6 - 0,8 |
| Office buildings | 0,5 - 0,8 |
| Industrial buildings | 0,4 - 1,0 |
| Warehouse facilities | 0,3 - 0,8 |