Approx-
imate
annual
con-
sump-
tion
(kWh)
Normal Output
(W)
Equipment
165-100Cooler (Operation: 24 h/day)
380-120Freezer (Operation: 24 h/day)
365-1500Oven, hob (Operation: 40 min/day)
310-3000Oven (Operation: 2 h/week)
730-2000Dishwasher, cold water connection (Opera-
tion 1 time/day)
730-2000Washing machine (Operation: 1 time/day)
730-2000Tumble drier (Operation: 1 time/day)
100-1000Vacuum cleaner (Operation: 2 h/week)
50-400Engine block heater (Operation: 1 h/day, 4
months a year)
100-800Passenger compartment heater (Operation:
1 h/day, 4 months a year)
These values are approximate example values.
Example: A family with 2 children live in a house with 1 flat-screen TV, 1
digital box, 1 DVD player, 1 TV games console, 2 computers, 3 stereos, 2
bulbs in the WC, 2 bulbs in the bathroom, 4 bulbs in the kitchen, 3 bulbs
outside, a washing machine, tumble drier, fridge, freezer, oven, vacuum
cleaner, engine block heater = 6240 kWh domestic electricity/year.
Energy meter
Check the accommodation's energy meter regularly, preferably once a
month. This will indicate any changes in power consumption.
Newly built houses usually have twin energy meters, use the difference to
calculate your domestic electricity.
New builds
Newly built houses undergo a drying out process for a year. The house
can then consume significantly more energy than it would thereafter.
After 1-2 years the heating curve should be adjusted again, as well as the
heating curve offset and the building's thermostat valves, because the
heating system, as a rule, requires a lower temperature once the drying
process is complete.
23NIBE™ F1255Chapter 2 | The heat pump – the heart of the house
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