ᐅ Which heating method would you choose and why?

Hello,
I am planning to build in the near future and cannot decide between gas and geothermal energy. The single-family house with KfW 70 standard (basement, ground floor, first floor, and attic conversion) has 163 sqm (1754 sq ft) of living space and will be occupied by 2 people. Underfloor heating is also planned. What is the most cost-effective way to heat domestic hot water and the heating system? What is the best investment and why?

Good luck

Hello,

I would move away from gas, oil, and pellets. But also consider a comparison of heating systems.

For a new build KfW70-2009, I would opt for a ducted heat pump.

Best regards

We are currently facing the same question!

Which heating system is best for our new build?

Geothermal energy is likely off the table due to the double initial investment costs and increased electricity consumption!

Hello Doeldi,

in the end, you have to calculate it over the entire life cycle.
Initial purchase cost
Additional costs
Operating costs
Maintenance and repair costs
Energy carrier costs

If you only want to consider the initial purchase cost,
then condensing technology would be acceptable.

The main thing is that you can switch to a different energy source in a few years.

That’s why I also refer to a system comparison calculator.

Best regards

Of course, the house will be built in a way that allows switching to geothermal energy at any time! That means underfloor heating!

Unfortunately, no one can tell me how long a heat pump will last! No one offers more than 4 years of warranty, so what if the unit completely breaks down after 7 years? Would I then have to pay another $6000? Is there a different technology that would force me to spend even more money?

In that case, the system wouldn’t be cost-effective anymore! And where will electricity prices go next? Our local providers are increasing rates by 14% as of January 1st.

Nobody really knows!

Hello Doeldi,

Of course, no one will give you a guarantee.

Can’t you switch electricity providers? 14% is quite steep.

This is regardless of the heating system.

Best regards