ᐅ Is a fan heater for a single room more cost-effective than a gas-fired central heating system?

Hello everyone,

In my house, there is underfloor heating installed beneath the roof. There are two rooms and a bathroom under the roof.

The underfloor heating is controlled centrally for the entire floor from one room. If I set the heating in that room to, for example, 20°C (68°F), both rooms will reach 20°C (68°F), while the bathroom tends to be warmer, around 25-30°C (77-86°F).

Since I usually only spend time in one room and theoretically don’t need the bathroom or can use another one, I’m wondering if it might be more efficient to use a small 1 kW (kilowatt) fan heater just in the room where I sit. My gas costs 13 cents per kWh, electricity is 30 cents per kWh. Electricity seems more expensive, but I would only be heating one room instead of two rooms plus the bathroom.

What do you think? Could this make sense?

Best regards

You also need to consider the other floors. How is the heating arranged on the other levels? Is it all connected to a single heating system, or are there multiple systems?

däumchen11 schrieb:

Since I’m really only staying in one room and theoretically don’t need the bathroom, or could use a different one, I’m wondering if it might be more efficient to run a small 1 kW (kilowatt) fan heater just in the room where I spend my time. My gas costs 13 cents per kWh, electricity 30 cents. Electricity seems more expensive, but I would only be heating one room instead of two rooms plus the bathroom.

Since the other two rooms, as well as the rooms below the attic, would also be heated by the fan heater, I think it makes little sense to use it. How many hours per day would you run the fan heater then?

Hey,

so we have a heating system in the basement. On the ground floor and first floor, there are radiators mounted on the walls (the attic was added later, so underfloor heating is installed there).

The other two rooms in the attic (the other room and the bathroom) are not used at all. Well, I think the fan runs for about 8 to 10 hours. On weekends, when I don’t have to work, the heating is on upstairs as well, even if I’m only sitting here working or something for about 2 hours.

däumchen11 schrieb:

The other two rooms (the other room and the bathroom) in the attic are not used at all.

But they are still heated along with the others. And these rooms require more energy.

Running a 1 kW fan for 8–10 hours costs about $2.50 per day, $12.50 per week (5 working days), and $50 per month just for the fan. I don’t know your heating costs, but $50 a month is enough to heat a small new build...

Benutzer200 schrieb:

For about a month, even a small complete new build can be heated...

That's right… 100 m² (1,076 ft²) can easily be kept warm for 50€ per month.