Planning of the technical room (distance between devices)

Our building services planner had recommended not to make it too tight, because you never know what you might retrofit, add, or replace later. Tendentially, the devices might become smaller, but more components will be added here and there with technical things. If the new buffer tank is then 20 cm wider but 10 cm narrower, in the worst case you might have to move half of the technology.

That would personally not be an argument for me, but rather an extremely vague prophecy about the future. :D

That would not be an argument for me personally, but rather an extremely vague prophecy about the future. :D

Well, the man has 20+ years of professional experience in the field. He must have replaced quite a few building services. I would at least keep in mind that you shouldn’t plan based on 10 cm. Our new electrical cabinet feels as big as a house. We wouldn’t have expected that ten years ago.

Danwood? ;)

Workspaces in front of the electrical distributor/water meter, etc. are mandatory. As for the devices themselves, you can also get an idea yourself, for example, you can clearly see the distances in the installer manual at Nibe. A minimum of 800 mm in front and 50 mm on the left and right are mandatory. However, you need approximately 300 to 400 mm extra either on the left or right for connection equipment, valves, etc. - but you can flexibly choose whether left or right.

That means you can, for example, provide the brine pipes on the opposite side, and then you probably have enough space for whatever else you want to accommodate.

P.S.: Absolutely compare the ventilation plan. Because, if Danwood: they have the bad habit of arranging the distributors on the wall. It looks very poor and also takes up a lot of space.

Danwood? ;)

Working spaces in front of electrical distributors/water meters, etc. are mandatory. As for the devices themselves, you can get an idea yourself, for example, you can see the distances quite well in the installer manual from Nibe. Mandatory are 800 mm in front, and 50 mm on the left and right. However, you need either on the left or right an additional approx. 300 to 400 mm for connection equipment, valves, etc. - but you can flexibly choose whether left or right.

That means you can provide the brine lines, for example, on the other side, and you probably already have enough space for whatever you still want to accommodate.

P.S.: Definitely coordinate the ventilation plan. Because, if Danwood: they have the bad habit of planning the distributors on the wall. It looks very poor and also takes up a lot of space.

Exactly, Danwood :) Yes, I of course understand that! Maybe, as you say, you can really place the brine unit next to the door and instead put the photovoltaic storage under the ventilation unit? Because that hangs, at least as far as I know, on the ceiling. And if you always have to access it from below, I probably can’t put a washing machine underneath either...

Danwood standardly plans, I believe, with ERS 10-400, which would be for wall mounting - as it also appears in your drawing. You really have to be careful there, the main connections go upwards and are very thick, so they need space, and you will most likely not be able to put anything underneath because the device also has a condensate drain at the bottom.

However, I only meant to move the two "circles" (brine lines cold/warm) from the left next to the heat pump (as currently planned) to the right. Placing the heat pump entirely next to the door would, in my opinion, be unfavorable; the brine lines should not necessarily run longer than necessary under your floor slab.

We are currently in the shell construction phase, and next to the kitchen, the utility room was really the final boss in terms of planning. We submitted a very concrete 'furnishing proposal' on how we imagine the furnishing and distribution of the technology. Our general contractor approved our planning because we left more space for the technology than the prescribed minimum size. We had initially requested these from the general contractor or their subcontractor and then did not receive them with the statement: not to actually plan with these minimum dimensions... So, we gathered the size of the technology itself from the internet and worked on the layout of the utility room (electrics, heat pump, storage tank, water including softening, etc.) including our wishes such as sink, dryer, washing machine, and clothes drying rack. Then we sent it back to the general contractor, received the feedback 'that looks very good,' and now construction is underway. I can understand that every craftsman wants as much space as possible for their trade, but as the builder, I do not want to 'waste' space. For me, that is passive technology, for example, I need the heat pump every day, but I do not have to actively handle it. I’m sorry if that is inconvenient for installation, but I have no square meters to give away, and the quoted craft prices include, for me, a 'pain allowance' for inconvenient installation.