ᐅ Is it possible to combine district heating or local heating with an air heating system? New build

Dear Forum,

I have some questions regarding the possible heating options I could have.

In our new development, there is a mandatory connection to a local low-temperature district heating network. This network is a geothermal system with probes and operates at 20°C (68°F). At the house connection point, 20°C (68°F) water is supplied. There is a heat pump (currently owned by the network operator) that heats the water to the desired temperature and then transfers it either to a hot water storage tank or directly into the heating circuit.

Key details about the planned house:
- 150m² (1,615 sq ft) living area
- KfW40 energy standard

1. Naturally, I can heat well with underfloor heating using this system, right?
2. I would prefer to use a ventilation system with heat recovery and also heat via that system. Can I use this system for heating? Is it even common for the heat exchangers in the ventilation system to be water-to-air heat exchangers?
2a. There is an additional option for “tempering,” so I could also cool through this system, correct?

Yes, this district heating network and contract are really restrictive, and the connection cost of €27,000 seems excessive to me, but I would prefer not to discuss this topic here.

1. Yes
2. No. For the rest, you would need to know
a) what kind of device?
b) does the supplier even allow that? (Keyword: additional heating sources)

Rübe1 schrieb:

1. yes
2. No. For the rest, you would need to know,
a) what kind of device?
b) does the utility provider even allow that? (keyword: additional heat sources)

Thank you,

Why would it be necessary to know what kind of device it is?

I have a heat pump that produces hot water; this is owned by the utility provider, so I have no influence over it.
However, I could choose the ventilation system myself. There should be ventilation systems that use heat from the water to warm the air, right?

Or where is my misunderstanding?

Why do you want to heat with or through the ventilation system in the first place?

hanse987 schrieb:

Why do you want to heat with or through the ventilation system at all?

- no radiators
- no expensive underfloor heating
- pollen-filtered fresh air
- air doesn't enter the house cold

Armbrust schrieb:

On the other hand, I could choose the ventilation system myself. A ventilation system that uses heat from water to warm the air should exist, right?

No, such a system does not actually exist. These are two completely different things – one is a VENTILATION system, the other is a HEATING system. A ventilation system only circulates a small amount of air, so it is practically impossible to use it for heating.