Sanitary shell inspection: What should we pay attention to?

  • Erstellt am 2022-08-18 10:19:54

fromthisplace

2022-09-20 14:01:01
  • #1


No, no temperature wishes. I also addressed this point with him during the shell construction inspection. To this, the plumber said, "we take the room temperatures that have proven to be appropriate." However, the specified values (20°C everywhere, 24°C in the two bathrooms, and 15°C in the basement hallway) are okay.
Attached information is provided regarding the floor coverings. We are getting tiles, parquet, and carpet.
In both bathrooms, a (large) electric heater is planned.



I am very torn. On the one hand, my patience is very stretched because we are paying the expensive almost-list prices for the additional samples, and on the other hand, I get the impression that they want to invest as little time/planning/communication as possible in us.
Unfortunately, the 4,000 euros are rather not budgeted, and we will most likely forgo it. I will conclude it with: "At least with the Stiebel Eltron LWZ 5S, we are not getting an oversized heat pump."

The basement hallway and the bathrooms, like all other rooms, have a planned laying distance of 20 cm.
Logically, a bathroom which is 24°C should have a tighter laying distance than a hallway with 15°C, or is it assumed that the electric heater will already compensate for the difference?
 

KingJulien

2022-09-20 14:27:39
  • #2
Right, isn't it. The electric heater is the GC's trump card for the bathroom ;)
 

RotorMotor

2022-09-20 14:34:59
  • #3
For me, the "calculations" increasingly look random. Therefore, I wouldn't spend €4000, even if that might be appropriate for the material.

I would probably rather go with the original version with 20cm and 10cm in the bathroom than this random approach. There isn't even a proper calculation of the heating load as a basis.

As an extreme example: putting the dressing room/bedroom and bathroom at the same distance simply doesn't make sense.

An electric radiator has an efficiency of 1, the heat pump 4. Therefore, with the radiator, you need four times as much electricity and thus also money.

So either recalculate everything properly or have it recalculated, or keep it simple: 20cm everywhere and 10 in the bathroom.
 

fromthisplace

2022-09-20 14:43:17
  • #4
Is it possible to "leave 20 cm everywhere, but reduce to 10 cm in the bathrooms" so easily? The installation distances contradict each other, don't they?
 

RotorMotor

2022-09-20 14:51:56
  • #5

Technically, of course, that is possible.
But it also means installing two loops there.

All layouts here are guesswork anyway.
In the first variant, there are partly strong overlays in some rooms, and in the second variant, extreme underlaying of the bathroom.

However, the internet is full of cases where people do not have it warm enough in the bathroom or too warm in the bedroom.
So in my opinion, it's better to slightly oversize there if you otherwise do not calculate at all.
 

fromthisplace

2022-09-20 15:31:09
  • #6


That's exactly it. Our bedroom here at best never exceeds 18°C and generally has no running heating.

Would it be a compromise: increase the distance in the master bedroom and dressing room, but reduce it to 10cm in the master bathroom and children's bathroom, or would that be disadvantageous for the master bedroom and dressing room?
 

Similar topics
29.04.2016Which heating? Please provide recommendations27
15.02.2016House planning final: heating components, what makes sense - no air heat pump20
27.03.2016Air-water heat pump, gas, solar thermal prefab house, advantages and disadvantages?18
30.09.2018BAFA funding for air-water heat pumps in new construction - how does it work?30
23.09.2017Ring trench collector for brine heat pumps18
17.06.2019Cabinet with air-water heat pump, water storage.. Does anyone know it?24
30.08.2019Floor plan design: Is the hallway on the ground floor wide enough?57
12.01.2021Underfloor heating air-water heat pump. House too warm when the sun shines690
05.02.2020LW Heat Pump Alpha Innotec LWDV with 12KW26
25.07.2020Staircase "protrudes" into hallway: Problematic?12
05.10.2020Air-to-water heat pump single-family house with basement - 150m² living area19
16.10.2020CTA Aeroheat heat pump settings for improvement17
03.05.2021Air-water heat pump in KFW55 house / heating load, standards?13
12.11.2021Underfloor heating and heat pump. I thought I understood it15
09.10.2022Heating, something is wrong here. Hallway always 22°..27
02.03.2023Heat pump for KfW55 house 148 sqm99

Oben