ᐅ Energy Saving Regulation 2014 – Gas Boiler Without Solar?

Hello.

Since the 2014 Energy Saving Ordinance will apply from next year, I have a few questions.

We are planning to build a single-family house next year or the year after and are currently still looking for a suitable plot of land. Nevertheless, we are already considering the design of the house and thinking about what we want and what we don’t.

What we want is a gas heating system with underfloor heating and a fireplace stove with passive warm air distribution to the upper floor.

We are still unsure about a controlled ventilation system with heat recovery. This would make the fireplace stove more expensive because it would have to be air-independent.

What are the experiences with noise?

Are there noise bridges?

Can you hear the ventilation?

Is it possible to use the ventilation to capture warm air from the fireplace and then distribute it throughout the house via heat recovery, or bring it to the rooms being ventilated?

What we don’t want is a solar system for hot water preparation.

Is it possible to comply with the 2014 Energy Saving Ordinance with a gas heating system without solar?

Best regards

Rafaelsen

Regarding the (central) ventilation system, I can share the following experiences:
- Noise: yes, if you stand right next to the unit, otherwise no
- Thermal bridges: none
- Hearing the ventilation: only a very faint noise in complete silence in the house; at full power (e.g., when we do raclette, fry fish, or similar) it is a bit louder – my daughter lying next to me right now, who has a cold and is therefore snoring, is louder
- Fireplace: ours is room-air independent (certified); nevertheless, we still need a pressure monitor, which costs an additional €1,000 (about $1,000)
- Distributing warm air through controlled ventilation: no, this does not work – in the living room where the fireplace is, there is supply air but no exhaust; furthermore, used air is extracted and vented directly outside. The air is not simply recirculated.

I can hardly imagine a gas heating system without solar, but there are other experts who will surely weigh in.

nordanney schrieb:


- Distribute warm air through controlled residential ventilation: no, that doesn’t work – in the living room, where the fireplace is, there is supply air but no exhaust air; furthermore, used air is extracted and directly expelled outside. The air is not supposed to simply be recirculated.

Hello. Thank you for the quick reply.

Is it generally possible to install an exhaust duct in the living room?

The ventilation system has a heat exchanger. Warm exhaust air heats the cold supply air. The extracted air first passes through the heat exchanger and then goes outside. My idea was to extract the warm air heated by the fireplace in the living room and use the ventilation system’s heat exchanger to warm the cold supply air, distributing it throughout the whole house.

That’s probably correct. The airflow volume is likely too low.

We are planning a passive warm air distribution system to direct heat upwards into the hallway.

A chimney installer told us that passive warm air distribution is not an issue.

But back to our original problem.

Gas without solar.

Gas has to be included because a gas stove is necessary.

And the fireplace also has to be included, which requires a chimney.

Since the chimney is needed anyway because of the fireplace, gas will likely provide the heat.

A gas stove does not necessarily require a gas connection. We do not have a natural gas supply due to lack of demand, but many people cook with gas cylinders. The same applies to fireplaces; there are some gas fireplaces that are supplied with cylinders. This way, you can avoid the cost of an expensive chimney.

Yes. A gas stove with a gas cylinder is of course possible. But that is out of the question. Or an ethanol fireplace without a chimney.
But then I might as well put in a fireplace DVD.
We want to build so that we don’t have to make compromises.
Otherwise, we could just look for an existing property. Then we wouldn’t have to deal with the energy saving regulations/planning permissions.