Oil versus electric infrared panels

  • Erstellt am 2022-07-19 12:05:50

altoderneu

2022-07-19 12:05:50
  • #1
Hello everyone,

I have found an interim rental option:
a single-family house that has been vacant for some time and is to be completely renovated in 2023

with an oil heating system
(and an empty oil tank)

I mainly want to make ONE room habitable and keep it comfortably heated
(and occasionally use the kitchen/bathroom for a few hours)

Heating oil costs about €1.25 to €1.30 per liter in the area
I think 1 liter of oil produces about 8 kWh of heat?
that would be 16 cents per kWh of heat ...

the price list of the local electricity provider states - besides a basic charge of about €20/month - a consumption-based electricity price of 16 cents per kWh
(it is 2 km west of the border in the neighboring country)

and in the hardware store I find such "infrared heating panels" - 450 watts for 80 euros or 600 watts for 100 euros

does anyone have experience with this?
is this at least a reasonable alternative to the oil heating during the "transition period"?
(which is probably not very efficient if you only heat ONE room in the house at +10° or +5° outside temperature?)
 

Tolentino

2022-07-19 13:03:14
  • #2
Due to the lack of a heat pump at the beginning of winter, I heated my new building with infrared panels. I had 1x 800 watts upstairs and 400 watts downstairs. However, in addition, I also had 2000 watts of fan heaters downstairs. With this, I managed to get the place to about 12-14°C at 5°C outside temperature. At 0°C about 10-11°C. When the fan heater did not heat overnight once (some kind of safety function switched off), the place cooled down to 8°C (at just above 0). I couldn’t do a test to see how it would behave in a small room, but I suspect that depending on the insulation, 1000 watts are not sufficient and you rather need 2-4000 watts (in total). Be careful, of course, that you don’t connect everything on one circuit. A standard line won’t last that long, especially not in old houses...
 

Deliverer

2022-07-19 13:33:47
  • #3
If the house still needs to be renovated, I would keep all rooms at 16°. Then it does not cost much more if you raise one room to a cozy 20°. The heating will probably have to provide hot water anyway.

IR is especially worthwhile in the bathroom, to raise it from 16 to 22° while showering. I would do basic heating with oil, especially if it is only one or two winters.

Caution, empty tank: After filling a previously empty tank, I would wait two days until any stirred-up sludge has settled again.
 

altoderneu

2022-07-20 09:52:52
  • #4
Why? What does that bring? As far as I know, the owner/landlord left the house unheated and vacant last winter ...
 

Deliverer

2022-07-20 10:02:31
  • #5
The walls become damp if they are not kept warm. This causes them to deteriorate faster and increases the risk of mold. However, this naturally depends heavily on the building materials used and the ventilation of the building, and I am not an expert. If I were you, I would at least read up on the subject.
 

Musketier

2022-07-20 10:16:01
  • #6
I suspect you have more to consider.

If the heating is operational (i.e. water in the pipes), then you at least have to heat all the rooms on frost protection. Experience shows that with thermostats set to frost protection, the temperature is maintained at about 7-10°. This can become quite costly during harsh winters if only one room is needed. With separate circuits, you can reduce this by decreasing the flow. With the risk of overdoing it and causing the radiators/pipes to freeze and burst. (experienced this myself)

If you drain the radiators, they will probably start to rust from the inside. If they are to continue being used, then this is also rather not an option.
 

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