ᐅ Building a House with TuC and Modifications – Your Thoughts?

Created on: 11 Apr 2019 21:52
D
derkobi
Hello construction experts and enthusiasts, I have been reading along for a while and now I need some advice.

We want to build with TuC here in Saxony, postal code area 02.
The companies that build for TuC here have a good reputation and there is a lot of building activity at the moment.

Most people simply build an affordable house, called Standard eco Baustein 1. Unfortunately, posting links is not allowed. We want to make a few small changes if they make sense.

We would like to increase the exterior wall thickness from 24cm (9.5 inches) to 36.5cm (14 inches), using aerated concrete from Porit in monolithic construction.
The additional cost is about 7,300€ (the foundation slab will also be larger to maintain the living space). The rest will be adjusted to the stronger walls – roof, windowsills, etc.

If worthwhile, we would replace the gas condensing boiler with an air-to-water heat pump (Vaillant aroTherm Split vwl 75/5) with Unitower vwl 78/5 IS.
Additional cost: 6,000€.

Underfloor heating throughout the house.
The house model is Flair 125, where 125 stands for the square meters.
One and a half stories.

What are your thoughts on this?

Kind regards,
Kobi
bon198012 Apr 2019 20:10
Well, if a ventilation system is so noisy that you can't run it at night, a) it is improperly designed, installed, or adjusted, and b) one of its biggest advantages is lost: fresh air in the bedroom during the night and morning.
N
Nordlys
12 Apr 2019 20:16
What does "loud" mean? Our Helios in the bathroom also always makes a humming noise that can be heard, but really only inside the bathroom itself and just barely in the adjacent bedroom.
It’s not disturbing. We always sleep with the window open anyway. Always.
D
derkobi
12 Apr 2019 20:18
@hemali2003
That sounds really good with your gas consumption, I would say as a layperson.
Regarding the noise level of the ventilation system, I’ll ask again—is it the same unit?
However, noise perception varies from person to person, so it will be difficult to make a definitive statement.
11ant12 Apr 2019 21:34
Well, with a Flair style, the combination of plastic and anthracite can still work: these houses don’t usually overdo it with floor-to-ceiling or huge sliding doors. In general, plastic and anthracite is not the problem, but plastic and anthracite combined with large-format frames, a south-facing side, and little shading. When you reduce the number of "risk factors," there are fewer issues.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
G
guckuck2
12 Apr 2019 22:00
For years, 99% of new buildings have been constructed using plastic combined with anthracite. There are plenty of window manufacturers who offer this solution along with warranties. So, keep calm, even if theoretically this may not be the ideal material combination.
Nordlys schrieb:
Our Helios unit in the bathroom also always makes a low humming noise, but it’s mainly audible only inside the bathroom itself and just barely in the adjacent bedroom.

If it’s already loud enough to be heard in the next room, then you have reached the point where a warning is necessary. This is definitely not how it should be.

Pluggit systems have their reputation. If you don’t want to pay extra, at least make sure they are installed only in secondary rooms. They are unbearable in living areas, as many report.
N
Nordlys
12 Apr 2019 22:07
My house doesn’t have to feel like a place of total silence....

There is the perfect solution, but it is always disproportionately expensive because achieving the last 10% requires a huge effort. Then there is the practically sufficient solution—not perfect, but good enough to live with. I’m not German enough for perfection. My mom was from Poland, we have the “good enough” gene... Karsten