ᐅ Controlled residential ventilation / DIBt-certified stove / pressure monitor
Created on: 16 Jul 2013 09:23
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PhoenixDH
Hello everyone,
we are planning to build a prefabricated house meeting the KfW 70 standard.
The house will be heated primarily with a gas/solar (water) system, partly with underfloor heating and partly with conventional radiators.
In addition, a controlled residential ventilation system with heat recovery will be integrated.
We also want to install a stove, since the heat from a stove has a different character.
I am familiar with the technical requirements from my chimney sweep.
This means the stove must be room-air independent and ideally certified by DIBt.
However, as is often the case, the stove we have chosen is room-air independent but does not have DIBt certification.
According to my information, a pressure monitor must then be installed, which shuts off the controlled ventilation system if the negative pressure becomes too high.
My question now is: what does such a pressure monitor look like and how is it installed?
Where does it measure? I assume in the room where the stove is located, but where else?
Does it measure outside? If so, how can I route the sensor outside?
Retrofitting a penetration to the outside later would be problematic due to airtightness concerns.
Can someone bring me up to date on this?
By the way: the range hood will be recirculating and can be disregarded.
Thank you very much!
we are planning to build a prefabricated house meeting the KfW 70 standard.
The house will be heated primarily with a gas/solar (water) system, partly with underfloor heating and partly with conventional radiators.
In addition, a controlled residential ventilation system with heat recovery will be integrated.
We also want to install a stove, since the heat from a stove has a different character.
I am familiar with the technical requirements from my chimney sweep.
This means the stove must be room-air independent and ideally certified by DIBt.
However, as is often the case, the stove we have chosen is room-air independent but does not have DIBt certification.
According to my information, a pressure monitor must then be installed, which shuts off the controlled ventilation system if the negative pressure becomes too high.
My question now is: what does such a pressure monitor look like and how is it installed?
Where does it measure? I assume in the room where the stove is located, but where else?
Does it measure outside? If so, how can I route the sensor outside?
Retrofitting a penetration to the outside later would be problematic due to airtightness concerns.
Can someone bring me up to date on this?
By the way: the range hood will be recirculating and can be disregarded.
Thank you very much!
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nordanney18 Oct 2013 12:45We have the same problem as you. We haven't found a mechanical ventilation system with an appropriate shut-off function. We will probably have to bite the bullet, even though we are still discussing this with the chimney technician.
I also have no idea how the pressure switch could be installed in our case, since we will have a freestanding fireplace in the middle of the room, and I’m not willing to drill a hole through the building envelope just so that this lousy pressure switch (costing EUR 1,000) can operate.
I’d rather choose a cheaper fireplace without certification and so on, especially if I need the pressure switch anyway.
I also have no idea how the pressure switch could be installed in our case, since we will have a freestanding fireplace in the middle of the room, and I’m not willing to drill a hole through the building envelope just so that this lousy pressure switch (costing EUR 1,000) can operate.
I’d rather choose a cheaper fireplace without certification and so on, especially if I need the pressure switch anyway.
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PhoenixDH18 Oct 2013 12:52You are unfortunately right!
But maybe someone knows such a system and we can still get some feedback.
I find it shocking that, at least in our case, almost the entire living room revolves around this damn fireplace and its necessary technology.
In the past, it was just a stove installed and that was it.
But maybe someone knows such a system and we can still get some feedback.
I find it shocking that, at least in our case, almost the entire living room revolves around this damn fireplace and its necessary technology.
In the past, it was just a stove installed and that was it.
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PhoenixDH18 Oct 2013 13:18While browsing further, I came across this: Zehnder ComfoAir 350 and the chimney sweep regulation.
Isn't that exactly it?
Isn't that exactly it?
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nordanney18 Oct 2013 13:22I agree with you!
It also seems contradictory because we:
- have a DIBt-certified fireplace including external air supply running beneath the slab
- specifically chose a recirculating hood for the new kitchen (which is more expensive than an exhaust hood)
Anyone who has an exhaust hood and a "cheap" fireplace from a hardware store faces the same requirements as we do.
It also seems contradictory because we:
- have a DIBt-certified fireplace including external air supply running beneath the slab
- specifically chose a recirculating hood for the new kitchen (which is more expensive than an exhaust hood)
Anyone who has an exhaust hood and a "cheap" fireplace from a hardware store faces the same requirements as we do.
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PhoenixDH18 Oct 2013 13:34I have contacted this company to get more information.
It’s frustrating that such problems are being caused.
We have exactly the same conditions.
Well, let’s wait for the company’s response and then contact the chimney sweep again.
He wanted something confirmed in writing; I hope an email will be sufficient.
And then the prefab house company just has to cooperate.
It’s frustrating that such problems are being caused.
We have exactly the same conditions.
Well, let’s wait for the company’s response and then contact the chimney sweep again.
He wanted something confirmed in writing; I hope an email will be sufficient.
And then the prefab house company just has to cooperate.
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