Hello dear community,
Since I have encountered various figures during the planning and consideration of our single-family house, I would like to start a thread where everyone is welcome to share all kinds of information.
Please move the topic if I have posted it in the wrong section.
I’ll start with the house of a good friend:
Type – 1.5 stories, gable roof, basement, approximately 140m² (without basement)
Heating – gas condensing boiler with about 400L (105 gallons) buffer tank and solar panels for hot water (2 panels)
Fireplace – yes, but without water jacket
Ventilation – Systemair VC400
Wall construction
- Eder Thermopor 016 – thermal conductivity Lambda 0.16 W/mK
- Insulation mineral wool rigid boards 120mm (5 inches) WLG035 and lightweight exterior plaster 20mm (0.8 inches)
- Heat transfer coefficient U-value 0.18 W/m²K
Number of occupants – 2 adults and 1 child (2–3 years)
Consumption values (as of 2015):
Water/sewage – 50m³/year (1,765 cubic feet/year) → about €250
Electricity – 2,700 kWh → about €900
Gas – 700m³ (24,740 cubic feet) → about €525 (although the house is heated a bit “too comfortably” for our taste)
Waste disposal, broadcasting fees, property tax… are very region-dependent.
I am grateful for any improvements and tips and look forward to strong feedback.
Since I have encountered various figures during the planning and consideration of our single-family house, I would like to start a thread where everyone is welcome to share all kinds of information.
Please move the topic if I have posted it in the wrong section.
I’ll start with the house of a good friend:
Type – 1.5 stories, gable roof, basement, approximately 140m² (without basement)
Heating – gas condensing boiler with about 400L (105 gallons) buffer tank and solar panels for hot water (2 panels)
Fireplace – yes, but without water jacket
Ventilation – Systemair VC400
Wall construction
- Eder Thermopor 016 – thermal conductivity Lambda 0.16 W/mK
- Insulation mineral wool rigid boards 120mm (5 inches) WLG035 and lightweight exterior plaster 20mm (0.8 inches)
- Heat transfer coefficient U-value 0.18 W/m²K
Number of occupants – 2 adults and 1 child (2–3 years)
Consumption values (as of 2015):
Water/sewage – 50m³/year (1,765 cubic feet/year) → about €250
Electricity – 2,700 kWh → about €900
Gas – 700m³ (24,740 cubic feet) → about €525 (although the house is heated a bit “too comfortably” for our taste)
Waste disposal, broadcasting fees, property tax… are very region-dependent.
I am grateful for any improvements and tips and look forward to strong feedback.
I also believe that cooking, baking, and small everyday tasks should not be underestimated.
Other small things like “a few cups of coffee” add up to a significant consumption over the course of a year. My Senseo really draws the specified 1500W. Just running it for 5 minutes a day already amounts to nearly 45 kWh per year. The computer is on for several hours daily, easily more than 200 kWh annually. My wife and two daughters (fortunately still young) will probably reach around 100 kWh per year just with hairdryer use. And so on and so forth. This doesn’t even include lighting, the washing machine, refrigerator, and many other appliances.
I really can’t understand how anyone can manage to use less than 1000 kWh per year. Even when it was just the two of us, we didn’t achieve that (and the computer was on even longer back then :-)).
Other small things like “a few cups of coffee” add up to a significant consumption over the course of a year. My Senseo really draws the specified 1500W. Just running it for 5 minutes a day already amounts to nearly 45 kWh per year. The computer is on for several hours daily, easily more than 200 kWh annually. My wife and two daughters (fortunately still young) will probably reach around 100 kWh per year just with hairdryer use. And so on and so forth. This doesn’t even include lighting, the washing machine, refrigerator, and many other appliances.
I really can’t understand how anyone can manage to use less than 1000 kWh per year. Even when it was just the two of us, we didn’t achieve that (and the computer was on even longer back then :-)).
A
albert.hagenlocher13 Mar 2016 20:56BeHaElJa schrieb:
Each cooking plate uses 2 kW, with 3 pots for 20 minutes; that's basically 2 kWh per day. So, there’s not much room to save energy even with modern appliances ;-) But that only makes a simple meal, 😉
albert.hagenlocher schrieb:
That only makes a simple meal anyway, 😉
This is just a rough calculation; I think keeping food warm requires less power. But if you cook something for more than 20 minutes at 2kW, it will be thoroughly cooked.A
albert.hagenlocher13 Mar 2016 21:04Saruss schrieb:
This is just scaled down, I think keeping it warm requires less power. If you cook something for more than 20 minutes at 2kW, it will be very well done. Then make a nice piece of meat or stew, etc.
albert.hagenlocher schrieb:
Then cook a nice piece of meat or stew etc.
When I make stew, I don’t need three burners, just one, and not 2 kW (2.7 hp) all the time either. Especially for a nice piece of meat, you don’t need 20 minutes. A thick roast takes a long time, but for all the "thin" cuts you need less, otherwise it becomes well-well-well-well-done. For most quality cuts, I’m at or under about 10 minutes.
A
albert.hagenlocher13 Mar 2016 21:13Saruss schrieb:
When I make stew, I don’t need three burners, just one, and even then not the full 2kW all the time. Especially for a nice piece of meat, it doesn’t take 20 minutes. A thick roast takes longer, but for all the “thin” cuts you need less, otherwise it ends up well-well-well-well done. For most good cuts of meat, I’m at or below about 10 minutes. Meat without side dishes?
Stew without browned bacon?
No, no, not my wife’s kitchen.
Good food unfortunately also uses energy.
PS: Luckily in summer only gas on the grill. (: