ᐅ Replacing Electric Underfloor Heating / Looking for Alternatives

Thanks for the information! So far, we haven't been able to find an energy consultant in our area to take a look. The real estate agent is pushing us, which is frustrating because this is a very important decision for us.

We have received the following data:

Heating costs
2016: 3,318.28 kWh
2017: 2,179.32 kWh
2018: 556.02 kWh
2019: 3,303.94 kWh
2020: 4,401.46 kWh
2021: 4,095.56 kWh

General electricity
2016: 14,059.15 kWh
2017: 17,140.78 kWh
2018: 19,588.08 kWh
2019: 23,278.04 kWh
2020: 21,015.63 kWh
2021: 11,278.67 kWh

Is this sustainable? We would be moving in as six people and would need to heat every room because of the children. Best regards

Do I understand correctly that the electricity for the electric underfloor heating was measured separately? If so, the values are fine—unless additional electric heating elements are not included in the measurement.

However, the year 2018 remains a mystery in terms of heating costs—did they have open fires inside the house that year?

The remaining electricity consumption is quite high; such levels are typical for households with a pottery kiln, operating a hot tub, using a sauna, running a server farm, or similar.

If you have information about other high-consuming devices, you can get a clearer picture.

To put the electricity bill into perspective, also consider the absence of other energy sources (oil, gas). Then the 400–500€ figure doesn’t seem so bad anymore.

If the house otherwise seems ideal, I wouldn’t see the electricity costs as a decisive factor preventing a decision.

annasascha schrieb:

And the realtor is pushing.

That doesn’t sound good. I would take the time needed to thoroughly estimate the follow-up costs.

It’s best to create a renovation plan.
Is the house already insulated? That helps a lot, but you should roughly know the costs beforehand.
Windows should also be considered after 35 years—how much longer they will last and how well they still seal.

annasascha schrieb:

Heating costs
2016: 3,318.28 kWh
2017: 2,179.32
2018: 556.02
2019: 3,303.94
2020: 4,401.46
2021: 4,095.56

General electricity
2016: 14,059.15
2017: 17,140.78
2018: 19,588.08
2019: 23,278.04
2020: 21,015.63
2021: 11,278.67

Looks like the headings got swapped 😉. From 2016 to 2021 an average of 17,500 kWh at 30 cents per kWh equals about 440 € per month.

annasascha schrieb:

Installing an air source heat pump and new underfloor heating to replace the boilers in the bathrooms. However, based on cost estimates from acquaintances, we were told this would easily cost 150,000 including bathroom renovations.

That doesn’t make sense. You can keep the boiler or tankless water heater in the bathroom. It’s manageable and definitely more economical than renewing all the water pipes.

What do you need for underfloor heating? Remove the old floor – either DIY or hire workers from nearby. That costs only a few thousand euros including disposal. The new screed might be around 2,000–3,000 euros. The rest is underfloor heating and heating system – generously estimated at about 35,000 euros if done professionally. Then you need a new floor covering. That’s basically it.
Remember, you’ll likely get generous subsidies too (including for disposal and new floor coverings).

Also consider if you prefer 50,000 euros in heating costs over 10 years. The new heating system pays off fairly quickly.

Thank you very much for your quick responses! I am very glad to have found this forum, as all this information is still new to us.

There is actually a tiled stove that is still in use, but that should be considered separately from the costs, right?

The renovation plan is important, so we are trying to better assess it with your help. We were presented with an energy certificate today, but it dates back to 2013. Is that standard? Do these certificates remain valid for that long, or is the realtor hiding something? Allegedly, only the windows would need to be replaced.

In our opinion, unfortunately, the bathrooms, water heaters, and also the heating system need to be replaced. Do you have any experience? Thanks!