Good morning everyone,
I would like to introduce myself briefly. We are 33 and 34 years old and have a 2-month-old son.
We built our house with Heinz von Heiden in 2016 in the Rems-Murr district, Baden-Württemberg, and moved in August 2016. Everything went well during the construction phase, but since yesterday we have a major problem with the heating system. Of course, the builder and the heating installer have already been informed. The latter is supposed to contact me tonight.
Installed is a Wolf CSZ-2-14/300 gas heating system. The heating system was commissioned on 15.04.2016. I must admit, to my shame, that I have not had any maintenance done so far. Only the chimney sweep visited twice and said everything was fine.
For the past 2 days, we have had an extremely sharp smell in the utility room (not a basement). My gas detector has not gone off, but the smell bothered us so much last night that we called the gas emergency service of the supplier. They came immediately and could not detect any gas leak at the gas system, which was a great relief.
Next, they noticed the heating circuit distributor of the underfloor heating (ground floor), which is also in the same room, and found CO (carbon monoxide) (20 ppm) coming from the lower right corner. However, they could not tell me where it was coming from. The amount is low but enough to make the whole room smell strongly. Now comes the main question: where is this coming from? I turned the heating on via the thermostats. All actuators opened, and after I turned them off again via the thermostats, they closed properly. The smell is still there. The heating system itself shows no faults. I have considered turning it off to see if the smell improves or disappears completely.
The friendly emergency service technician also noticed that the traps (3 pieces in the utility room) were all nearly empty. He explained this as follows: Since it rained heavily for the past 3 days and the sewer system created negative pressure, the traps were practically emptied. This probably caused some of the smell but is not the source. We refilled the traps, and it seems somewhat better. If the utility room door and window are closed, you start getting headaches after about 15 minutes.
Because I fear a health hazard and we have a baby in the house, I have now called all Wolf-specialized heating installers in the area, but none have the time or willingness to take a look. Do you have any advice on what I can do?
Best regards
I would like to introduce myself briefly. We are 33 and 34 years old and have a 2-month-old son.
We built our house with Heinz von Heiden in 2016 in the Rems-Murr district, Baden-Württemberg, and moved in August 2016. Everything went well during the construction phase, but since yesterday we have a major problem with the heating system. Of course, the builder and the heating installer have already been informed. The latter is supposed to contact me tonight.
Installed is a Wolf CSZ-2-14/300 gas heating system. The heating system was commissioned on 15.04.2016. I must admit, to my shame, that I have not had any maintenance done so far. Only the chimney sweep visited twice and said everything was fine.
For the past 2 days, we have had an extremely sharp smell in the utility room (not a basement). My gas detector has not gone off, but the smell bothered us so much last night that we called the gas emergency service of the supplier. They came immediately and could not detect any gas leak at the gas system, which was a great relief.
Next, they noticed the heating circuit distributor of the underfloor heating (ground floor), which is also in the same room, and found CO (carbon monoxide) (20 ppm) coming from the lower right corner. However, they could not tell me where it was coming from. The amount is low but enough to make the whole room smell strongly. Now comes the main question: where is this coming from? I turned the heating on via the thermostats. All actuators opened, and after I turned them off again via the thermostats, they closed properly. The smell is still there. The heating system itself shows no faults. I have considered turning it off to see if the smell improves or disappears completely.
The friendly emergency service technician also noticed that the traps (3 pieces in the utility room) were all nearly empty. He explained this as follows: Since it rained heavily for the past 3 days and the sewer system created negative pressure, the traps were practically emptied. This probably caused some of the smell but is not the source. We refilled the traps, and it seems somewhat better. If the utility room door and window are closed, you start getting headaches after about 15 minutes.
Because I fear a health hazard and we have a baby in the house, I have now called all Wolf-specialized heating installers in the area, but none have the time or willingness to take a look. Do you have any advice on what I can do?
Best regards
Stubai83 schrieb:
Good morning everyone,
I’d like to briefly introduce myself. We are 33 and 34 years old and have a 2-month-old son.
We built with Heinz von Heiden in 2016 in the Rems-Murr district, Baden-Württemberg, and moved in August 2016. Everything went well during the construction phase, but unfortunately we have a major problem with the heating system since yesterday. Of course, the builder and the heating technician have already been informed. The latter will contact me this evening.
Installed is a Wolf CSZ-2-14/300 gas heating system. The heating system was commissioned on 15.04.2016. I have to admit, to my shame, that I have not had any maintenance done so far. Only the chimney sweep came twice and said everything was fine.
.... First things first: CO does not have a smell – carbon monoxide is an odorless gas, which is what makes it so dangerous.
Regarding the utility room door and the closed window: Is that even allowed? Depending on the system design, the fresh air intake might be missing.
The question is whether the odor is actually coming from the heating system or if something else is off-gassing – after three years without any new influences (e.g., moisture from leaks), this seems rather unlikely. In the end, it’s difficult to diagnose remotely. A blocked drain trap (siphon) would have been my first guess as well.
Thank you very much! I was lucky. Today my heating engineer came by. The good news is that neither the heating system, the solar system, nor the ventilation system have any issues. The pressure in the underfloor heating is also very good, and there are no leaks. He has now serviced all three systems.
His suspicion is similar to that of Netze BW. Due to the heavy rain we had, a negative pressure developed in the sewer pipe, which emptied the drain traps. In fact, these traps were emptier than usual, but not completely dry. In the corner of the utility room, the bathroom waste pipe from the first floor passes through the ceiling into the floor slab before it enters our connection chamber on the property and then connects to the public sewer. If you specifically smell near the bottom of the pipe in the utility room, there is a very unpleasant odor (it stinks).
My heating engineer suggests just waiting for two weeks to see if the issue resolves itself by flushing the sewer pipes. What do you think? Should I wait or hire a sewer cleaner?
Thank you
Best regards
His suspicion is similar to that of Netze BW. Due to the heavy rain we had, a negative pressure developed in the sewer pipe, which emptied the drain traps. In fact, these traps were emptier than usual, but not completely dry. In the corner of the utility room, the bathroom waste pipe from the first floor passes through the ceiling into the floor slab before it enters our connection chamber on the property and then connects to the public sewer. If you specifically smell near the bottom of the pipe in the utility room, there is a very unpleasant odor (it stinks).
My heating engineer suggests just waiting for two weeks to see if the issue resolves itself by flushing the sewer pipes. What do you think? Should I wait or hire a sewer cleaner?
Thank you
Best regards
Update:
The odor was noticeably stronger this morning compared to yesterday and definitely comes from the corner near the downpipe. My landscaper, who installed the inspection chamber and connected the downpipes, will come tomorrow to fix the issue using a drain cleaner. If this does not succeed, I will hire a professional company that can also inspect the pipes with a camera.
Regards
The odor was noticeably stronger this morning compared to yesterday and definitely comes from the corner near the downpipe. My landscaper, who installed the inspection chamber and connected the downpipes, will come tomorrow to fix the issue using a drain cleaner. If this does not succeed, I will hire a professional company that can also inspect the pipes with a camera.
Regards
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