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.
T
toxicmolotof19 Mar 2016 01:45ypg schrieb:
By now, it must be laptops, PCs, and TVs as wellI think you’re mistaken... Even a high-end gaming laptop only uses a 120-150W power supply. My gaming PC setup with two monitors, a good graphics card, and various accessories rarely exceeds 800W under full load. In the entire house (right now, only the PC is running) I’m measuring 480W. Subtracting the base load of 250W leaves 230W for the PC and a 5W energy-saving lamp. Even a two-year-old 75" (190cm) LED TV only consumes around 270W.
I believe standby power and devices like routers, Wi-Fi access points, and multiswitches together add up to a significant amount of electricity consumption.
That’s exactly why I couldn’t imagine a consumption of 650 kWh. Our base load last May, while on vacation (fridge set to vacation mode), with most appliances completely turned off (heating was on just in case it got cold again, but turned way down), was still 5 kWh. Okay, that includes the heating, but even so, when I calculate the vacation mode consumption, it’s three times higher.
T
toxicmolotof19 Mar 2016 11:01And I hope to contribute some practical experience.
toxicmolotow schrieb:
And I hope to contribute some practical experience.Definitely. My experiences are very similar to yours.
Regarding the base load, I still need to wait a bit, but it’s definitely around 5 kWh/day.
Standby power consumption is a huge energy waster – I have eliminated/switched it off. This immediately saves a noticeable amount of electricity. Two systems alone consumed 75 W standby, which adds up.
The old plasma TV, which used over 600 watts, was a major energy drain. It was replaced with a device that uses 35 watts (55 inches).
With all measures so far, we’ve reduced consumption from about 16 kWh/day to 11.5 kWh/day.
A new refrigerator or freezer could save about another 1 kWh/day, but it’s not worth it at the moment.
I only use the dryer in exceptional cases.
Best regards
Thorsten
112 sqm (1,222 sq ft)
KFW55
Monolithic construction
1.5-storey without basement
Underfloor heating throughout
Decentralized ventilation with heat recovery
Additional information:
Daily short ventilation once a day.
No nighttime temperature reduction, target room temperature 24°C (75°F) consistently, bathroom 25°C (77°F)
7,700 kWh gas used for hot water and heating in the past 365 days
KFW55
Monolithic construction
1.5-storey without basement
Underfloor heating throughout
Decentralized ventilation with heat recovery
Additional information:
Daily short ventilation once a day.
No nighttime temperature reduction, target room temperature 24°C (75°F) consistently, bathroom 25°C (77°F)
7,700 kWh gas used for hot water and heating in the past 365 days
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