ᐅ What annual electricity consumption should I specify in the energy contract?
Created on: 9 Jun 2017 10:21
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BigFlow
Hello,
we will have two separate meters: one for the regular household electricity and one for our heating system. This consists of:
- Air-to-water heat pump with an outdoor unit for underfloor heating
- Exhaust air heat pump with a 200-liter (53-gallon) water tank for domestic hot water
- 150 sqm (1,615 sq ft) of usable space
When setting up the new electricity contracts, I would indicate 3000 kWh for household electricity (which has been roughly the consumption so far). For the heating electricity, I am unsure. I was thinking of 5000 kWh. Do you think that will be enough, or should I set it higher from the start? There are many varying reports on the consumption of such systems, so I prefer to estimate on the higher side to avoid unexpected additional charges.
Regarding these special heat pump tariffs with time-of-use restrictions, has anyone experienced the problem of suddenly running out of hot water while showering?
Thank you in advance.
Florian
we will have two separate meters: one for the regular household electricity and one for our heating system. This consists of:
- Air-to-water heat pump with an outdoor unit for underfloor heating
- Exhaust air heat pump with a 200-liter (53-gallon) water tank for domestic hot water
- 150 sqm (1,615 sq ft) of usable space
When setting up the new electricity contracts, I would indicate 3000 kWh for household electricity (which has been roughly the consumption so far). For the heating electricity, I am unsure. I was thinking of 5000 kWh. Do you think that will be enough, or should I set it higher from the start? There are many varying reports on the consumption of such systems, so I prefer to estimate on the higher side to avoid unexpected additional charges.
Regarding these special heat pump tariffs with time-of-use restrictions, has anyone experienced the problem of suddenly running out of hot water while showering?
Thank you in advance.
Florian
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Bieber08159 Jun 2017 22:25No, this applies once you move into the completed house.
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HilfeHilfe10 Jun 2017 08:37Better to have a few extra kW and deal with a later payment than to have too little. It also depends on the region you are in and how cold it gets.
BigFlow schrieb:
Well, the exhaust air pump is only used to heat domestic hot water. The underfloor heating is supplied by the air-to-water heat pump. Therefore, I will first try to run the exhaust air pump in eco mode (the electric heating element will not be used).That's right, I overlooked that. But why do you have a separate exhaust air pump for domestic hot water? That doesn’t make any economic sense at all.
Hmm, whether this makes economic sense, I might be able to tell you after a few winters 😉
The developer simply offered this combination in all the townhouse units, so we couldn’t choose anything else. Naively, I think that the outdoor unit only has to provide the 35°C (95°F) supply temperature for the underfloor heating in winter, and the exhaust air pump, which receives the heated air, can operate more efficiently.
The developer simply offered this combination in all the townhouse units, so we couldn’t choose anything else. Naively, I think that the outdoor unit only has to provide the 35°C (95°F) supply temperature for the underfloor heating in winter, and the exhaust air pump, which receives the heated air, can operate more efficiently.
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