Hello,
I’m interested in knowing your current daily heating consumption.
Please provide it either in kWh for heat pumps or in m³ for gas, along with the room temperature, heated area, and energy standard (e.g., Energy Saving Ordinance 2016, KFW70, KfW 55, etc.).
I’m curious about your consumption at the current temperatures.
I’m interested in knowing your current daily heating consumption.
Please provide it either in kWh for heat pumps or in m³ for gas, along with the room temperature, heated area, and energy standard (e.g., Energy Saving Ordinance 2016, KFW70, KfW 55, etc.).
I’m curious about your consumption at the current temperatures.
Nafetsm schrieb:
I deliberately did not ask for the value in kWh for gas, as this also depends heavily on the gas quality (calorific value and compressibility factor)Exactly.
kWh = m³ (cubic meters) × calorific value × compressibility factor.
Therefore, only specifying kWh makes sense for comparison.
But anyway, small inaccuracies are probably not that critical here.
This is not about compiling a fully comprehensive compendium based on empirical research.
It is clear that many factors influence the values, such as heating efficiency, system configuration, thermal comfort, occupants, ambient temperature, insulation, material mix, and so on.
However, it can serve to provide reference values that at least offer useful benchmarks to see where you stand yourself. For example: We currently use about 25m³ (35 cubic yards) of gas. Energy Saving Ordinance 2016
It is clear that many factors influence the values, such as heating efficiency, system configuration, thermal comfort, occupants, ambient temperature, insulation, material mix, and so on.
However, it can serve to provide reference values that at least offer useful benchmarks to see where you stand yourself. For example: We currently use about 25m³ (35 cubic yards) of gas. Energy Saving Ordinance 2016
too much for my taste
after 1 year, we took the meter reading 2 weeks ago.
air-to-water heat pump, KfW 70 standard, with about 200 m2 (2,150 sq ft) of living space and 248 m2 (2,670 sq ft) of usable area, which is still being heated since there are no doors, including domestic hot water.
room temperature at least 23 degrees Celsius (73°F), rather 23.5 degrees Celsius (74°F)
5,800 kWh of electricity consumed, about 1,000 kWh of which was from the drying program that ran for about 14 days but was then stopped because there is no screed in the house.
after 1 year, we took the meter reading 2 weeks ago.
air-to-water heat pump, KfW 70 standard, with about 200 m2 (2,150 sq ft) of living space and 248 m2 (2,670 sq ft) of usable area, which is still being heated since there are no doors, including domestic hot water.
room temperature at least 23 degrees Celsius (73°F), rather 23.5 degrees Celsius (74°F)
5,800 kWh of electricity consumed, about 1,000 kWh of which was from the drying program that ran for about 14 days but was then stopped because there is no screed in the house.
K
Knallkörper9 Dec 2016 11:31We will not be able to cover this year’s estimated 20,000 kWh (in natural gas). The house was built in 1997, timber frame construction, details are largely unknown, quality is rather poor in any case. Of the 200 m² (2,150 sq ft) living space, typically only 50% is heated, and only in the afternoons, evenings, and on weekends. Room temperature is 20°C (68°F).
Nafetsm schrieb:
As an example: We currently use about 25m³ (35 cubic yards) of gas. Energy Saving Ordinance 2016Screed drying? Multi-family house? No windows?
Otherwise, 25m³ (35 cubic yards) would be really high. That definitely needs to be addressed.
Cubic meters alone don’t say much about the energy content, since two regionally different factors also apply. Therefore, the comparison isn’t accurate. kWh would be more precise, but not everyone knows that, especially if the factors are (still) unknown.
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