ᐅ The dilemma of choosing...

Good evening, fellow home builders,

After gathering one opinion after another for days and consulting a heating engineer friend, choosing the right heating system is not getting any easier. I'd like to share some of the details and hear about your experiences 🙂

Parameters:

• New single-family house (solid construction, Poroton T8/T9, preferably monolithic)
• Style: townhouse, 2 full floors plus basement
• Approximately 150 m² (1,615 sq ft) of living space
• Plot with a slight slope
• There is a gas connection on the property
• Hipped roof with about 20° pitch, ridge line running roughly from NNE to SSW
• According to the local building consultant, the site (rocky) is not suitable for geothermal systems (collector), although no detailed study has been done yet
• Underfloor heating (according to the installer, the build-up is about 14 cm (5.5 inches) including floor covering)
• We would like to install a central ventilation system

Does the roof pitch exclude solar thermal systems? What heating system would you recommend here? I am mainly considering the economic aspect.

Perhaps you could also recommend a specific system (maybe one that complies with the current energy-saving regulations)? (Private messages are welcome).

I hope some of you dare to share your thoughts. I look forward to every reply.

Have a nice evening!