Good morning home builders.
A question: Who is building with a gas heating system according to the new building regulations?
I ask because I have to install the most expensive windows to achieve an overall U-value of 0.7 (due to the new regulations).
How is it for you?
A question: Who is building with a gas heating system according to the new building regulations?
I ask because I have to install the most expensive windows to achieve an overall U-value of 0.7 (due to the new regulations).
How is it for you?
merlin83 schrieb:
Guest without ST will also be difficult with a ventilation system.One of the suppliers we are still considering has just replaced ST with a ventilation system as standard this year. Together with a gas condensing boiler. Apparently, that was easier.
jama schrieb:
I need to install an 18sqm (194 sq ft) solar system just for hot water on my semi-detached house..Respect. Usually, 5sqm (54 sq ft) is sufficient for a household of four.
Who convinced you of this exaggerated idea of an 18sqm (194 sq ft) collector?
jama schrieb:
7-person household, all calculated according to the Energy Saving Ordinance. Windows must have an overall U-value of 0.7OK. I strongly recommend you use vacuum flat tube collectors with 16 m² (172 ft²) or 18 m² (194 ft²) and integrate the heating system. This will be much more effective than conventional collectors.
Yes – windows must now have a U-value of 0.7, that’s correct.
I still have old, poor-quality ones at 1.1.
Sascha aus H4 Jun 2016 12:12T21150 schrieb:
OK. I highly recommend using vacuum flat tube collectors with 16 sqm (172 sq ft) or 18 sqm (194 sq ft) and integrating them with your heating system. You will have much more success with that than with conventional collectors.
Yes – windows now need to have a U-value of 0.7, that's correct.
I still have poor ones at 1.1. Have you used vacuum collectors yourself?
We were advised against them because they are said to get damaged very quickly if there is heavy hail, New Year’s fireworks, or other impacts on the collectors. Traditional collectors are apparently not as sensitive.
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