ᐅ What installation spacing should be used for radiant floor cooling?

Can you explain exactly what happens when the loop in the bathroom is split?
Does this reduce pressure loss, thereby increasing efficiency or reducing the deficit?
As I said, I will definitely give it a try.

We have a ceiling cooling system in the laboratory that can only be operated together with the air conditioning. The air conditioning dehumidifies and circulates the air; otherwise, condensation would occur near the floor. Every summer, the company comes by to adjust the system. I imagine that floor cooling has similar issues.

Okay, a laboratory is not a living area, and a +/- 5% relative humidity difference doesn’t matter much, but all the more reason why I wouldn’t voluntarily bring cooling issues into a house. Cooling is not straightforward, even in the high-end segment. Without a dehumidification system, I wouldn’t lower 30°C (86°F) to a significantly more comfortable temperature.

SandyBlack schrieb:

Can you explain exactly what happens when you split the loop in the bathroom?
Does that reduce the pressure loss and thereby increase efficiency or reduce underperformance?
As I said, I will definitely try it.

By splitting, you roughly halve the resistance in the bathroom.

The issue is that you want the bathroom to be the warmest room.
That means the flow rate there also needs to be nearly the highest.
But if the bathroom has the greatest resistance, you have to throttle all the other rooms/loops significantly.
Then you will spend a lot of time in the Arotherm thread, repeatedly asking how to get the bathroom warm, what to do about short cycling, and how to increase the low flow a bit.
Alternatively, of course, you could just heat with “infrared heating.”
That is, simply electric direct heating.

Oh, and what do you mean by trying? You are the building owners, aren’t you?

Schorsch_baut schrieb:

Without a dehumidification system, I wouldn’t cool 30°C (86°F) air down to a significantly more comfortable level.

But that’s a strawman argument. You don’t cool 30°C (86°F) air directly; instead, you continue shading during the day and ventilate with cool air at night or early morning. That way, the temperature differences are much smaller.
And if you already have air conditioning, you might as well skip the underfloor cooling.

RotorMotor schrieb:

Ah, and what do you mean by trying? You are the home builders, aren’t you?

Our house was installed on Tuesday – hence my late reply.
That’s why all trucks, including the heating circuit pumps, were loaded on Monday. Our project manager didn’t know which pumps were packed, but if a valve is still available, we can sort that out on site.

Another question:
I noticed that we received a Vaillant VR 71 mixing module for the heating system.
Does anyone know what that is? What is it used for? Does it have any advantages or disadvantages?
From the description I found online, it’s not clear to me what it’s needed for.

SandyBlack schrieb:

Our house was assembled on Tuesday – hence my late reply.
That’s why all trucks, including hydraulic heating circuits (HKVs), were already loaded on Monday. Our project leader didn’t know which hydraulic heating circuits were packed, but if a valve is still available, we can sort it out at the construction site.

Wow, you guys accept that way too easily.
Let me ask again, are you the homeowners?

Over a part costing about 10€ that simply wasn’t on the truck but is readily available at any hardware store, you want to accept a significantly worse hydraulic system performance? Wow!

SandyBlack schrieb:

Another question:
I noticed that we received a Vaillant VR 71 mixing module for the heating system.
Does that mean anything to anyone? What is it used for? Does it give us any advantages or disadvantages?
From the description online, I can’t tell what it is for.

Do you have solar thermal energy or something like that?