Controlled residential ventilation / DIBT stove / pressure monitor

Unfortunately, this only applies to sweeping. The inspection is always the responsibility of the district chimney sweep, and you cannot choose him.

Since it is currently the case with us as well (stove is being delivered today), here are our experiences. We have a LAS chimney and a stove with DiBT approval. These are tested up to 12Pa negative pressure. However, a malfunction of the controlled residential ventilation can, as far as I know, generate a higher negative pressure. So either install a pressure monitor or a "intrinsically safe controlled residential ventilation." Since the controlled residential ventilation installed with us is intrinsically safe, the pressure monitor can be omitted in our case as well. According to the written statement from the manufacturer (which our chimney sweep wants), the controlled residential ventilation is intrinsically safe because:

[*]Through an automatic, weekly calibration, an excessively high pressure difference between supply/exhaust air is detected and compensated
[*]In the event of a technical defect in the supply air fan, the device completely shuts down.
[*]The frost protection function (heat exchanger defrosts) does not shut off the supply air but both supply and exhaust air.

Since it is currently the case with us as well (the stove is being delivered today), here are our experiences. We have a LAS chimney and a stove with DiBT approval. These are tested up to 12Pa negative pressure. However, a malfunction of the controlled residential ventilation can apparently generate a higher negative pressure as far as I know. So either install a pressure switch or use a "intrinsically safe controlled residential ventilation". Since the controlled residential ventilation installed in our system is intrinsically safe, we can also do without the pressure switch. According to the written statement of the manufacturer (which our chimney sweep wants), the controlled residential ventilation is intrinsically safe because:

[*]Through an automatic, weekly calibration, an excessively high pressure difference between supply and exhaust air is detected and compensated
[*]In case of a technical defect in the supply air fan, the device shuts down completely.
[*]The frost protection function (heat exchanger defrosts) does not shut off the supply air but both supply and exhaust air.

Thank you! I can now also confirm this after renewed consultation with our chimney sweep and submission of the operating instructions, etc.

Since it is currently the case with us as well (stove is being delivered today), here are our experiences...

This is not an operational experience, rather one of "handling"! Usually, the installation room is an "inflow room"! A negative pressure, with external combustion air supply, actually cannot occur because of this, even if the controlled residential ventilation, e.g. due to a technical defect, is not functional. LAS is from a professional point of view more of a second choice compared to a separate combustion air supply. I know, LAS sellers see this differently. Controlled residential ventilation is not "child's play", especially in well to very well insulated buildings. The room-specific air volumes significantly influence the room heating loads and thus the sizing of the heating surfaces or operating parameters (VLT, spread, hydraulics). The commissioning protocol with suitable measuring devices is of essential importance here. Payments to the controlled residential ventilation installer should depend on this! Best regards.

By experience, I actually meant what concerns the story with the chimney sweep. I don't know if my term "LAS" is correct. We definitely have a chimney with a separate supply air duct.

Since this question is still burning under my fingernails: Are there any more experiences from the last few weeks from people who just had an acceptance inspection? Because I would only reluctantly want such a box in the living room next to the stove. Or does anyone from Vorlauf have exactly this system: Vaillant recoVAIR 273 or 350