ᐅ Extremely High Heating Costs with Underfloor Heating: Incorrect Settings?
Created on: 1 Nov 2019 11:54
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fraubauer
Good day.
We have noticed that our neighbor in the multi-family house (6 units, KfW 70 standard, built in 2016) has extremely high heating costs.
We have underfloor heating throughout (standard windows with mechanical ventilation), pellet heating.
We suspect that his heating habits may not be quite correct.
Can anyone say what might possibly be done wrong?
90 m² (970 ft²), upper floor, single household (retiree). Consumption in October was about 400 kWh for 90 m² (2 weeks quite warm, 15–10°C (59–50°F) in October, 2 weeks around 10–0°C (50–32°F) in Bavaria).
Rooms such as the living room, bathroom, hallway, and bedroom are heated to about 21°C (70°F) using room thermostats.
The office is not heated at all.
In general, he likes it warmer.
However, he does not heat the office at all.
Ventilation is done normally through the window (occasionally tilted).
Who can advise on how to properly heat with underfloor heating for a single person (retiree)?
Thank you very much.
We have noticed that our neighbor in the multi-family house (6 units, KfW 70 standard, built in 2016) has extremely high heating costs.
We have underfloor heating throughout (standard windows with mechanical ventilation), pellet heating.
We suspect that his heating habits may not be quite correct.
Can anyone say what might possibly be done wrong?
90 m² (970 ft²), upper floor, single household (retiree). Consumption in October was about 400 kWh for 90 m² (2 weeks quite warm, 15–10°C (59–50°F) in October, 2 weeks around 10–0°C (50–32°F) in Bavaria).
Rooms such as the living room, bathroom, hallway, and bedroom are heated to about 21°C (70°F) using room thermostats.
The office is not heated at all.
In general, he likes it warmer.
However, he does not heat the office at all.
Ventilation is done normally through the window (occasionally tilted).
Who can advise on how to properly heat with underfloor heating for a single person (retiree)?
Thank you very much.
F
fraubauer1 Nov 2019 13:49guckuck2 schrieb:
Orientation, especially during transitional seasons, also plays a role, along with a desired temperature that is three degrees lower, different ventilation behavior, and so on.
Keep observing, especially during the heating season. At the moment, there is no reason to be concerned.Thanks for the information. However, we noticed that the identical apartment (but facing east/south) uses 95% less floor heating energy in kWh compared to the south/west one — 30 kWh versus 400 kWh! Both occupied by one person each.
Could it be that the east/south apartment is simply heated enough by the sun so that the underfloor heating (set to 18–20°C (64–68°F) via the thermostat) hardly ever turns on? Meanwhile, the south/west apartment, lacking sunlight and with room temperatures around 21°C (70°F), runs the heating almost constantly (one room is not heated at all, so heat probably flows from the heated rooms to the unheated one).
That could explain the large difference.
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HilfeHilfe1 Nov 2019 14:06It's just like with the Stasi
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fraubauer1 Nov 2019 14:06HilfeHilfe schrieb:
It's like the Stasi No, just neighborly help...
fraubauer schrieb:
One room is not heated at all. So the heat probably moves from the heated rooms into the unheated one.
That would explain the large difference. Well, it’s basic physics. Many people missed this in school and think that if you shut off a room, you can save energy. Often the opposite happens because it increases the area that needs to be heated. This is especially true for underfloor heating, which you should definitely avoid doing. Since the underfloor heating is practically always on, it ends up heating the unheated room as well.
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