Hello,
we are planning to build soon, and I am currently looking into the heating system.
I have tried to estimate how much electricity our air-to-water heat pump might consume.
Am I correct in understanding that the final energy demand is the amount of energy I need to put into the house for heating and hot water?
And this can be provided by oil, gas, or a heat pump?
If so, how does the COP work in this context?
I am trying to explain it with a very simple, hypothetical example:
A house with 200 sqm (2153 sq ft) and a calculated final energy demand of 10 kWh/sqm/year.
I understand this to mean that 2000 kWh of heating energy is needed annually.
An air-to-water heat pump with a theoretical COP of 2 converts 1 kW of electricity to 2 kW of heat.
Does that mean that with such a heat pump, only 1000 kWh of electricity is needed for heating and hot water?
I hope I am not making too many mistakes, but primary energy, final energy, COP, efficiency, and performance are all new and quite confusing to me.
Thanks in advance
Anja
we are planning to build soon, and I am currently looking into the heating system.
I have tried to estimate how much electricity our air-to-water heat pump might consume.
Am I correct in understanding that the final energy demand is the amount of energy I need to put into the house for heating and hot water?
And this can be provided by oil, gas, or a heat pump?
If so, how does the COP work in this context?
I am trying to explain it with a very simple, hypothetical example:
A house with 200 sqm (2153 sq ft) and a calculated final energy demand of 10 kWh/sqm/year.
I understand this to mean that 2000 kWh of heating energy is needed annually.
An air-to-water heat pump with a theoretical COP of 2 converts 1 kW of electricity to 2 kW of heat.
Does that mean that with such a heat pump, only 1000 kWh of electricity is needed for heating and hot water?
I hope I am not making too many mistakes, but primary energy, final energy, COP, efficiency, and performance are all new and quite confusing to me.
Thanks in advance
Anja
R
Radfahrer2 Oct 2023 18:42Apolyxo schrieb:
No, the ventilation is calculated separately. Just like the hot water.So that means there will be additional primary energy for ventilation and hot water, and possibly auxiliary energy as well?