I would like to start a new comparison thread and learn about your energy consumption. I am not completely satisfied with mine.
KFW55
Heated area 200 m2 (2,150 sq ft), underfloor heating
Standard rooms 19°C (66°F), living areas 22°C (72°F), bathroom 23°C (73°F)
Air-to-water heat pump with centralized controlled ventilation system
Domestic hot water temperature 50°C (122°F)
Data collection unfortunately only since April 2019:
I will update the table monthly. November will be included soon, with an estimated 650 kWh.
KFW55
Heated area 200 m2 (2,150 sq ft), underfloor heating
Standard rooms 19°C (66°F), living areas 22°C (72°F), bathroom 23°C (73°F)
Air-to-water heat pump with centralized controlled ventilation system
Domestic hot water temperature 50°C (122°F)
Data collection unfortunately only since April 2019:
| April | 407 |
| May | 347 |
| June | 109 |
| July | 131 |
| August | 144 |
| September | 198 |
| October | 356 |
I will update the table monthly. November will be included soon, with an estimated 650 kWh.
apokolok schrieb:
Yes oil, yes old building. Efficient? I don’t care. Nowadays, that is truly a very unfortunate attitude. Nothing against old buildings and oil where it makes sense, but the rest of the sentence... oh man.
Comfort and efficiency are not mutually exclusive. A well-designed new build performs (significantly) better in both aspects.
We have only owned the house since November 1st and have not moved in yet, so I don’t have any personal consumption data.
I received a bill from the previous owner for 2017, but there is no more recent one. According to that, they used 13,500 kWh of heating energy in one year.
At the end of 2018, a local heating technician performed a hydraulic balancing, and I have the invoice for that. Maybe it already helped somewhat.
You often read that individual room control is not recommended. We have a box in the wall on each floor, with a valve for every room, similar to the old radiator setups. Should I open them all fully and then regulate the heating that way?
I haven’t had much time to read the manual due to renovation stress. If I’m reading it correctly, the heating system is a LA17TU from Dimplex, and there is a Hydrotower HWK 332 Econ with a heat pump manager in the basement.
I received a bill from the previous owner for 2017, but there is no more recent one. According to that, they used 13,500 kWh of heating energy in one year.
At the end of 2018, a local heating technician performed a hydraulic balancing, and I have the invoice for that. Maybe it already helped somewhat.
You often read that individual room control is not recommended. We have a box in the wall on each floor, with a valve for every room, similar to the old radiator setups. Should I open them all fully and then regulate the heating that way?
I haven’t had much time to read the manual due to renovation stress. If I’m reading it correctly, the heating system is a LA17TU from Dimplex, and there is a Hydrotower HWK 332 Econ with a heat pump manager in the basement.
Tobibi schrieb:
We have only owned the house since November 1st and have not moved in yet,Move in first, and then you have 2020 and 2021 to make adjustments. It takes time to set up the heating system properly to suit all seasons. In the first year, you gradually optimize it, and in the second year, you check if your settings are still appropriate and, if necessary, make fine adjustments.
B
boxandroof29 Nov 2019 13:56If there are any renovation works planned before moving in, it might also be possible to address the heating surfaces. Try searching on Google as Lumpi described. There is a lot of expert help available.
13500 is certainly a significant figure, but not entirely unrealistic. If the house has no energy-efficient renovations, 200 kWh/m²*a is a realistic value. This results in 200 kWh/m²*a × 200 m² (2153 sq ft) × 1 year = 40,000 kWh. Annual performance factor = 40,000 / 13,500 = 3.0 – which is also not unrealistic for an uninsulated older building.
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