So far, we have spoken with three fireplace installers, and each prefers a different option for the fresh air supply. We will choose a room-air-independent fireplace and therefore need a fresh air supply from outside. The following options were recommended to us:
1. Pipe through the foundation slab with a mushroom vent in the garden
2. Chimney with two adjacent flues, one for exhaust gases and one for fresh air (e.g., Schiedel Xpert)
3. Chimney with concentric fresh air supply (e.g., Erutec FLAS)
Option 1 can be relatively inexpensive, but we don’t want a pipe or mushroom vent visible outdoors.
We like option 2.
Option 3 is supposed to preheat the incoming fresh air, improving combustion. On the other hand, I imagine that the warming fresh air might have difficulty sinking downwards, which could make its functionality dependent on weather conditions and therefore somewhat unreliable.
Do you have any good advice on this?
1. Pipe through the foundation slab with a mushroom vent in the garden
2. Chimney with two adjacent flues, one for exhaust gases and one for fresh air (e.g., Schiedel Xpert)
3. Chimney with concentric fresh air supply (e.g., Erutec FLAS)
Option 1 can be relatively inexpensive, but we don’t want a pipe or mushroom vent visible outdoors.
We like option 2.
Option 3 is supposed to preheat the incoming fresh air, improving combustion. On the other hand, I imagine that the warming fresh air might have difficulty sinking downwards, which could make its functionality dependent on weather conditions and therefore somewhat unreliable.
Do you have any good advice on this?
Hello,
I consider option 1 to be an unnecessarily complex solution.
For us, the choice was between option 2 (Schiedel Absolut) and option 3 (Erlus SL). According to the chimney sweep, there is basically no real difference between them, although the Schiedel representative naturally claimed that Schiedel is much better than others—which of course they have to say. The main advantage of Schiedel should be better insulation, and you should pay attention to which model integrates better into the house. Schiedel units have a rectangular cross-section, while Erlus are square. This means that the Schiedel is wider but less deep. Since our chimney is located in a partition wall, that fit much better.
The general contractor left the choice up to us, so there shouldn’t be a major cost difference.
Best regards,
Andreas
I consider option 1 to be an unnecessarily complex solution.
For us, the choice was between option 2 (Schiedel Absolut) and option 3 (Erlus SL). According to the chimney sweep, there is basically no real difference between them, although the Schiedel representative naturally claimed that Schiedel is much better than others—which of course they have to say. The main advantage of Schiedel should be better insulation, and you should pay attention to which model integrates better into the house. Schiedel units have a rectangular cross-section, while Erlus are square. This means that the Schiedel is wider but less deep. Since our chimney is located in a partition wall, that fit much better.
The general contractor left the choice up to us, so there shouldn’t be a major cost difference.
Best regards,
Andreas
N
nordanney16 Jun 2016 10:29andimann schrieb:
I consider option 1 to be an absurd effort. Why?
Just have a PVC pipe installed additionally beneath the slab foundation. Where is the effort if all sorts of pipes are being laid at the same time anyway? A significantly lower cost was the decisive factor.
We also have option 2, the Schiedel, but you’ve already made your decision anyway.
... Even if, in my opinion, your reasoning is a bit flawed: there are things that aren’t too problematic, and this applies to the garden as well, which you can still design according to your preferences. In the end, it’ll just be a chimney – your beautiful roof will be adorned with something a bit less attractive, namely the chimney.
... Even if, in my opinion, your reasoning is a bit flawed: there are things that aren’t too problematic, and this applies to the garden as well, which you can still design according to your preferences. In the end, it’ll just be a chimney – your beautiful roof will be adorned with something a bit less attractive, namely the chimney.
D
DragonyxXL16 Jun 2016 10:34nordanney schrieb:
Significantly lower price was the deciding factor. The extra cost for the chimney would be around 200-300€ (approximately $215-$320). The pipe to the outside is about 50-100€ (approximately $55-$110). However, the pipe still requires some type of termination or cladding, and the more attractive options reportedly cost several hundred euros.
D
DragonyxXL16 Jun 2016 10:38ypg schrieb:
but you’ve already made your decision anyway Against option 1, but not for 2 or 3.
ypg schrieb:
Then it’s just a cap – your nice roof will be adorned with something even less attractive, namely the chimney Well, the cap isn’t just placed anywhere. As I understand it, you can’t run the pipe through half the yard, but ideally it should go straight outside from the chimney. If that’s the case, we don’t want it standing in the corner.
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