ᐅ The heating system does not fit into the utility room as planned.

Hello,
after several frustrations with the way our site manager has been handling things, we experienced another major issue over the weekend.

Our heating system was installed.
Unfortunately, its dimensions do not match the planned measurements. As a result, the heater now partially blocks the window, and the window cannot be fully opened.

According to the plan, the heater was supposed to be positioned to allow enough space by the window.
The site manager prepared the plan and the specifications and presented them to us for signature. We then commissioned the heating system.
Now it turns out that it does not fit as expected.

The site manager claims that his drawing was only schematic.
That alone is quite frustrating.
It remains to be determined to what extent this is a planning error.
Is this something one has to accept? The actual dimensions deviate from those in the plan.

My main question now is: if we have to accept it as it is, we will need to minimize the damage:
The heater is placed in the rear right corner, angled in front of the window, about 70 cm (28 inches) from the exterior wall. Next to the heater, in the direction of the window, an expansion vessel and a filling station for the external unit are installed.
If these could be relocated to a different position, it might be possible—if at all feasible—to rotate the heater and place it directly against the exterior wall. (Theoretically, there is enough space. The heater is 70 cm (28 inches) wide, and the space is 80 cm (31 inches).
Is this even possible? Can the expansion vessel and filling station be relocated?

Thank you in advance for any advice.

Best regards, Franzi

Hello,

Normally, the expansion tank and the filling station can be positioned freely, so relocating them should not be an issue.

A picture or a plan would be helpful, though, as we cannot know how things look at your place....

Are you concerned about ventilation? Our utility room has no windows at all. Holes were drilled at the top and bottom, and plastic air ducts were installed. These are always open. I don’t want to have to ventilate the utility room every day. Also, I don’t want to spend time there because of the lack of natural light... Personally, I would find such a planning mistake in the house very frustrating.

Here is our plan. The current location of the heating system is marked in red, and the expansion tank and related components are inside the green circle.

hondazp11 schrieb:
Do you have to accept something like this? The actual dimensions differ from those in the plans.

In my opinion, yes. This is not a construction-ready plan.

hondazp11 schrieb:
If this were relocated to another site, it might be possible to rotate the heating system, if at all, and place it directly against the exterior wall. (There would theoretically be enough space. Th

Rotating heating units is always a bit tricky. Sometimes there are specified working clearances to the left and right of the equipment that must be observed. Clearances at the back and elsewhere are also important. Usually, the manufacturer provides this information in the installation manual.

On the other hand, the position of the filling station or the external expansion vessel is more flexible.

By the way, your photo of the situation is not very helpful.

What type of heating system is it?

Caspar2020 schrieb:
In my opinion, yes. This is not a detailed execution plan.

Rotating heating units is always a tricky matter. Sometimes there are specified working clearances to the left and right of the units that must be observed. Clearance behind the units also plays a role. Usually, the manufacturer provides information about this in the installation manual.

In contrast, the position of the filling station or the external expansion vessel is more flexible.

By the way, your photo of the situation is not really helpful.

What kind of heating system is this?

Vaillant Set 4.47 fexoCOMPACT VWF 88/4 with aroCOLLECT air/water heat pump