Initial situation:
New construction KFW 55
Two full floors (152 m2 (1636 sq ft))
Basement area currently not available.
The basement is built with waterproof concrete (WU concrete) and will be used as a utility basement, not as living space.
The basement is an open design, meaning there is no door between the ground floor and basement. The insulated building envelope extends from the upper floor ceiling down to the basement floor. Therefore, the basement is included within the insulated building envelope.
A central ventilation system will be installed. The unit is planned to be set up in the basement.
Now the question arises whether the basement rooms should be connected to the ventilation system or not.
Does anyone have suggestions? How do others handle this? What are the advantages and disadvantages of including the basement? How should basement rooms be ventilated?
It would be somewhat cheaper to exclude the basement, but we cannot think of other reasons. Perhaps someone can help us make this decision easier.
Thank you.
New construction KFW 55
Two full floors (152 m2 (1636 sq ft))
Basement area currently not available.
The basement is built with waterproof concrete (WU concrete) and will be used as a utility basement, not as living space.
The basement is an open design, meaning there is no door between the ground floor and basement. The insulated building envelope extends from the upper floor ceiling down to the basement floor. Therefore, the basement is included within the insulated building envelope.
A central ventilation system will be installed. The unit is planned to be set up in the basement.
Now the question arises whether the basement rooms should be connected to the ventilation system or not.
Does anyone have suggestions? How do others handle this? What are the advantages and disadvantages of including the basement? How should basement rooms be ventilated?
It would be somewhat cheaper to exclude the basement, but we cannot think of other reasons. Perhaps someone can help us make this decision easier.
Thank you.
Bieber0815 schrieb:
What does the ventilation installer say about it? He says we can have the basement with or without ventilation. It’s our decision.
andimann schrieb:
But how am I supposed to imagine that, "no door between the ground floor and basement"?
The ventilation systems do produce some noise, just like the heating, washing machine, dryer, etc. And then no door????? It means between the ground floor and the basement stairwell, just as Alex85 suspected. The basement rooms will still have doors.
Thanks already for your contributions.
I’m leaning towards including the rooms since there are hardly any extra costs for a few additional pipes and vents.
What BratacDD did is also worth considering.
We will discuss it again with the ventilation installer and architect.
B
Bieber08152 Mar 2017 08:29Runner schrieb:
I am now leaning towards including the rooms because the additional costs for a few extra pipes and vents are minimal. You might also need a larger unit since the total airflow will increase (roughly by about one-third). But I would still go for it! The concept has to be right and planned just like it is for the other floors.
I’m surprised the ventilation installer hasn’t said more about this. What does the overall concept look like? What air exchange rate is targeted? How is the basement supposed to be ventilated without mechanical ventilation? What use do you plan for that area?
Bieber0815 schrieb:
You might also need a larger unit, since the total airflow volume will increase (roughly by about one third). But I would do it anyway! The concept has to be right and planned exactly as for the other floors.
I’m surprised the ventilation specialist hasn’t said more about this. What does the overall concept look like? What air exchange rate is targeted? How is the basement supposed to be ventilated without controlled residential ventilation? What use do you plan for the basement?We have now decided to include the basement as well.
Well, we haven’t even hired the ventilation specialist yet. We just received a quote from him that included the basement. That’s when the question came up whether to connect the basement to the ventilation system or not. And we wanted to check how others handle this.
I also need to correct my previous statement where I said the ventilation specialist said we could either include the basement or not.
Our architect told us to consider whether we wanted to ventilate the basement. I thought this was the ventilation specialist communicating to the architect, but that was not the case. So, apologies for the confusion.
Without controlled residential ventilation, window ventilation would have been necessary, with the consideration that basement rooms usually don’t need to be ventilated as often as living areas.
But now, thinking it over, it probably doesn’t make much sense to leave the basement out.
The basement will be purely for utility use: technical room, food storage, drying laundry in winter, hobby workshop.
Hello,
That’s inexpensive. For a self-installation in a 180 m² (1,937 sq ft) house, so probably 2–3 more rooms, we expect to spend just under 10,000 € for the materials, including the 350 enthalpy unit and a ground heat exchanger. Those alone cost around 1,500–1,800 €.
After adjustments, the ventilation specialist then quoted you about 8,000 € for the materials and 2,600 € for the installation. That sounds reasonable.
We received offers including installation ranging from 18,000 to 25,000 €, which is completely absurd!
Best regards,
Andreas
Runner schrieb:
10,600 gross with the Zehnder Q350 TR.
That’s inexpensive. For a self-installation in a 180 m² (1,937 sq ft) house, so probably 2–3 more rooms, we expect to spend just under 10,000 € for the materials, including the 350 enthalpy unit and a ground heat exchanger. Those alone cost around 1,500–1,800 €.
After adjustments, the ventilation specialist then quoted you about 8,000 € for the materials and 2,600 € for the installation. That sounds reasonable.
We received offers including installation ranging from 18,000 to 25,000 €, which is completely absurd!
Best regards,
Andreas
Similar topics