Just recently, someone asked me about our monolithic construction using only 24 cm (9.5 inches) aerated concrete blocks (without underfloor heating, small solar thermal system, 148 sqm (1594 sq ft)) and how high our heating costs are. I had estimated up to 1600 euros because consumption is supposed to be higher during the first years in a new building.
And just now I saw that we used less than 10,000 kWh last year, which is about 900 euros below my estimate.
We always keep it pretty warm and only installed electric programmable thermostats 4 weeks ago.
What are your energy consumption figures?
I can’t really explain why ours is so low.
Incidentally, we never had any problems with high indoor humidity. It has been normal from the start.
Best regards
And just now I saw that we used less than 10,000 kWh last year, which is about 900 euros below my estimate.
We always keep it pretty warm and only installed electric programmable thermostats 4 weeks ago.
What are your energy consumption figures?
I can’t really explain why ours is so low.
Incidentally, we never had any problems with high indoor humidity. It has been normal from the start.
Best regards
H
hemali200323 Nov 2018 21:09Maybe I just googled the wrong terms. I checked again regarding the KfW reference. KfW 100 corresponds to 100 kWh/m². With KfW 70, we are pretty much right on the "expectations" at 70% of KfW 100.
I have heating costs in mind, for example, for my parents of 2000 to 3000 euros annually (built in 1970), so I found our 600 euros quite reasonable.
I have heating costs in mind, for example, for my parents of 2000 to 3000 euros annually (built in 1970), so I found our 600 euros quite reasonable.
Winniefred23 Nov 2018 21:12What year of construction? 2070, probably not.
Our deposit is €60, but we voluntarily pay a bit more in advance.
Our deposit is €60, but we voluntarily pay a bit more in advance.
H
hemali200323 Nov 2018 23:091970, of course. Sorry. It was such a long time ago, the last century...
Winniefred24 Nov 2018 10:15Okay, that could make sense if not much has been done to the house yet. Friends of mine have a semi-detached house from the 1980s with 120m² (1300 sq ft) living space, where not much has been updated so far, and they burn through about €3000 (approximately $3200) worth of heating oil every year.
If I were you, I would wait until this winter for more information. However, as I said, I think the energy consumption seems quite high for a house built in that era. That’s just my personal opinion though—I’m not an expert and can only compare it to our own little house.
If I were you, I would wait until this winter for more information. However, as I said, I think the energy consumption seems quite high for a house built in that era. That’s just my personal opinion though—I’m not an expert and can only compare it to our own little house.
Der-w schrieb:
Do you remember your previously calculated energy values by heart? 5.8 kW heating load, specific heat demand 34.1 W/m²
Trench collector + brine/water heat pump: about €35 per month for electricity for heating + hot water for 160 sqm (1720 sq ft) KFW 55.
Additionally: trench collector installed as DIY: subsidy €5,500, costs under €2,500 → €3,000 plus ... (of course only if you enjoy and have the time to build it yourself). The brine/water heat pump costs are similar to an air/water heat pump or gas, so I’ll ignore these costs for now.
Additionally: trench collector installed as DIY: subsidy €5,500, costs under €2,500 → €3,000 plus ... (of course only if you enjoy and have the time to build it yourself). The brine/water heat pump costs are similar to an air/water heat pump or gas, so I’ll ignore these costs for now.
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