Advice for heating in new construction

Hello everyone,

we are about to build our little house (if everything goes smoothly, construction will start in spring). It is an approx. 125 sqm solid house with triple glazing, etc. Also completely underfloor heating.

We will build without a basement. Our technical room is about 9 sqm.

Now I am facing the big question of how to best heat. The construction company recommended a gas tank in the garden to me. However, I can’t get used to that. What other options do I have that won’t break the budget?

How about an air heat pump? There are many good and also many bad experiences with that.

I am so overwhelmed from reading that I have lost track.....

I ask for advice :)

Thank you very much

Hello,
€uro is right. The demand must first be determined/calculated.
You can maybe roughly get a general idea beforehand based on various data.
How is your house insulated (final energy demand), where is it located (climate region), how many people, is there a gas connection?
For example, in a KFW70 house with only 125 sqm heated area (underfloor heating), if there is no gas connection (why else would you put a tank in the garden or bury it), without a basement – a properly dimensioned air heat pump would certainly not be wrong in principle. You also don’t need a chimney or exhaust tube for gas condensing boiler then. Or maybe a small brine heat pump.
Those are my ideas as a home builder (2011/12).
But even experts can only tell you more once data is available.
Best regards

....€uro is right. The demand must first be determined/calculated. One can perhaps roughly set a general direction beforehand based on various data. ..

The actual power and energy demand can be calculated relatively accurately in advance with a tolerance of ~ 10...15%, since all building data (the used or planned components), the building orientation on the construction site (building application documents!), the desired or intended room temperatures, and the required hot water demand are basically fixed. In connection with the respective intended technical system configuration, one obtains the expected consumption (kWh), and with the energy carrier price/kWh the expected consumption costs. Subsequent consumptions can thus be evaluated/assessed here and in case of noticeable deviations, errors can be easily found. Minor temporal deviations usually do not affect the annual balance. In addition, heating energy consumption is annually climate-adjusted. Why builders naively sign contracts without knowledge of these contexts and incur significant debt for this is almost beyond me :confused: Usually the "pig in a poke" is bought, and if consumption costs turn out to be significantly higher than expected later, complaints follow and the guilty party is desperately sought! :(

Regards