ᐅ Building a House with TuC and Modifications – Your Thoughts?
Created on: 11 Apr 2019 21:52
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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
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
Yosan schrieb:
How do you arrive at 4 devices?---->
micric3 schrieb:
Our standard air-to-water heat pump (including 4x Lunos e2 units) in the offer you have received showed an additional cost of 4,150 euros.Yosan schrieb:
That is included as standard with TuC and therefore does not incur an extra charge.You still have to pay for the devices and the labor. It’s just included in the overall house price.
Mycraft schrieb:
You still have to pay for the equipment and labor. It's just included in the overall house price.Yes, that’s clear. But it doesn’t increase the “catalog price.”Alright, the offer states at least 4, but this should be finalized beforehand.
For each apartment, at least four heat recovery units, System Lunos e² (or an equivalent chosen by the contractor according to §12, "Miscellaneous"), will be installed mainly in living areas such as the living room, children’s room, guest room, and bedroom.
@Yosan: Are you building to KfW55 standard with an energy certificate, or just using 36.5cm (14.4 inches) wall thickness?
For each apartment, at least four heat recovery units, System Lunos e² (or an equivalent chosen by the contractor according to §12, "Miscellaneous"), will be installed mainly in living areas such as the living room, children’s room, guest room, and bedroom.
@Yosan: Are you building to KfW55 standard with an energy certificate, or just using 36.5cm (14.4 inches) wall thickness?
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boxandroof14 Jul 2019 12:54For example, we would have needed 11 ventilation units, or that was how it was calculated—for a typical single-family house with two small offices. When these units eventually need to be replaced, a central system is at least financially equivalent. We also didn’t want 11 holes in the wall and 11 potential sources of problems.
There are definitely good decentralized units, and simple technology always has its advantages. If you don’t need to ventilate the entire house, decentralized can certainly be an option. In terms of noise, the central solution wins, but this is mainly relevant in the bedrooms, assuming the units are quiet. There are also solutions without heat recovery ventilation (HRV), using supply air valves combined with central exhaust. Are these still being installed?
There are definitely good decentralized units, and simple technology always has its advantages. If you don’t need to ventilate the entire house, decentralized can certainly be an option. In terms of noise, the central solution wins, but this is mainly relevant in the bedrooms, assuming the units are quiet. There are also solutions without heat recovery ventilation (HRV), using supply air valves combined with central exhaust. Are these still being installed?