Hello.
I am planning to install a Vaillant ground source heat pump VWF 88/4.
We are considering installing a second electricity meter to benefit from a cheaper tariff for the heat pump.
However, this meter would be off for up to 6 hours per day.
As far as I know, we do not have a buffer tank integrated.
Alternatively, we could use the regular electricity supply (one meter). Overall, this would cost about €250-300 per year more than with the heat pump tariff.
I am concerned that during the off periods, the electric heating element might turn on, and we could end up spending much more than the €250-300 savings.
How does the electric heating element usually work – does it only activate in emergencies, or does it always come on when hot water is drawn?
I would appreciate any answers or experiences.
I am planning to install a Vaillant ground source heat pump VWF 88/4.
We are considering installing a second electricity meter to benefit from a cheaper tariff for the heat pump.
However, this meter would be off for up to 6 hours per day.
As far as I know, we do not have a buffer tank integrated.
Alternatively, we could use the regular electricity supply (one meter). Overall, this would cost about €250-300 per year more than with the heat pump tariff.
I am concerned that during the off periods, the electric heating element might turn on, and we could end up spending much more than the €250-300 savings.
How does the electric heating element usually work – does it only activate in emergencies, or does it always come on when hot water is drawn?
I would appreciate any answers or experiences.
I would like to continue this discussion. Is it worthwhile to split the electricity meter for a separate heat pump tariff?
What are the experiences of heat pump owners here?
The price difference between the heat pump electricity and the "standard tariff" is about 7-8 cents per kWh, but a monthly basic fee must be paid for each tariff.
What are the experiences of heat pump owners here?
The price difference between the heat pump electricity and the "standard tariff" is about 7-8 cents per kWh, but a monthly basic fee must be paid for each tariff.
micric3 schrieb:
The price difference between heat pump electricity and the "standard tariff" is about 7-8 cents per kWh, but a monthly base fee must be paid for each tariff. With that, you know the basic conditions and can calculate whether it’s worth it.
For an energy-saving regulation house, it will be a mid-double-digit amount per year, so I wouldn’t want to tie myself to two contracts, meters, etc. For a timber frame house around KfW 40 standard, it can quickly become a losing proposition.
The basic calculation is quite simple and actually shows that heat pump electricity tariffs can help save money.
1000 kWh = 8000 cents / 80 EUR extra cost per year if a heat pump electricity tariff is not used.
In the online database for heat pump electricity consumption, the average for a 110-140 m² (1,184-1,507 sq ft) home with 3-4 people is around 2000-4000 kWh consumption per year.
However, it may be necessary to consider the following:
If heat pump electricity tariffs are used, the heat demand of the house may increase due to a load management factor that must be taken into account. The rated capacity of the heat pump and the size of the outdoor unit must be adjusted to a higher heat demand. Additionally, a larger storage tank may be required as a heating buffer during off-peak load periods.
Therefore, it would be interesting to know who uses a separate heat pump electricity tariff.
1000 kWh = 8000 cents / 80 EUR extra cost per year if a heat pump electricity tariff is not used.
In the online database for heat pump electricity consumption, the average for a 110-140 m² (1,184-1,507 sq ft) home with 3-4 people is around 2000-4000 kWh consumption per year.
However, it may be necessary to consider the following:
If heat pump electricity tariffs are used, the heat demand of the house may increase due to a load management factor that must be taken into account. The rated capacity of the heat pump and the size of the outdoor unit must be adjusted to a higher heat demand. Additionally, a larger storage tank may be required as a heating buffer during off-peak load periods.
Therefore, it would be interesting to know who uses a separate heat pump electricity tariff.
H
HilfeHilfe12 Oct 2019 10:48Our local utility company’s heat pump is more expensive than, for example, EnBW, which I chose. With them, there is no price difference between high tariff and low tariff, yet it is still cheaper.
M
Michlhausbauaa19 Oct 2019 16:23Is it common to have a lockout period?
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