B
Bau-Teufel25 Dec 2012 13:38Hello dear forum,
We have been stuck on the ventilation aspect of our planning for quite some time now, and one question still remains unanswered for me. I often read that only recirculation hoods should be used in the kitchen when a controlled mechanical ventilation system is installed, but I am wondering 1. Why exactly is that the case, and 2. What would happen if we combined a controlled mechanical ventilation system with an exhaust hood? What would the consequences be?
Thank you very much in advance 🙂
We have been stuck on the ventilation aspect of our planning for quite some time now, and one question still remains unanswered for me. I often read that only recirculation hoods should be used in the kitchen when a controlled mechanical ventilation system is installed, but I am wondering 1. Why exactly is that the case, and 2. What would happen if we combined a controlled mechanical ventilation system with an exhaust hood? What would the consequences be?
Thank you very much in advance 🙂
New buildings are airtight. If you install an exhaust ventilation system there, it creates negative pressure inside the house, which can be life-threatening. The situation becomes especially dangerous when there is a chimney.
Of course, you can install an exhaust hood inside the house, but you should then have a window sensor that only allows the exhaust hood to run when a window is tilted open. However, this completely disrupts the airflow concept of your controlled mechanical ventilation system. Nowadays, good recirculating hoods usually have excellent performance. Just avoid the cheap, metallic, noisy light sources from stores like Ikea.
You can do anything, but whether it makes sense is another question, and whether the chimney inspector will approve it is yet another.
Of course, you can install an exhaust hood inside the house, but you should then have a window sensor that only allows the exhaust hood to run when a window is tilted open. However, this completely disrupts the airflow concept of your controlled mechanical ventilation system. Nowadays, good recirculating hoods usually have excellent performance. Just avoid the cheap, metallic, noisy light sources from stores like Ikea.
You can do anything, but whether it makes sense is another question, and whether the chimney inspector will approve it is yet another.
K
karliseppel26 Dec 2012 21:55Hi,
often the practical implementation fails in the end because the installation height in the upper floor was not taken into account, which would be required for the exhaust duct of the kitchen island hood below...
For airtight constructions, there are mechanical wall boxes. A control system integrated with the mechanical ventilation with heat recovery is certainly feasible, but the planner needs to be knowledgeable. This comprehensive expertise covering all connections (floor construction, mechanical ventilation with heat recovery, electrical controls, fireplace regulations, airtightness concept, etc.) is rarely found in a single person.
often the practical implementation fails in the end because the installation height in the upper floor was not taken into account, which would be required for the exhaust duct of the kitchen island hood below...
For airtight constructions, there are mechanical wall boxes. A control system integrated with the mechanical ventilation with heat recovery is certainly feasible, but the planner needs to be knowledgeable. This comprehensive expertise covering all connections (floor construction, mechanical ventilation with heat recovery, electrical controls, fireplace regulations, airtightness concept, etc.) is rarely found in a single person.
B
Bau-Teufel26 Dec 2012 22:28Hmm, that probably won’t be an issue. On one hand, the builder told us that the exhaust duct can be installed in the ceiling, and we also wanted to lower the ceiling above the kitchen island to integrate the lighting and the range hood there. A mechanical wall vent was also on our list.
I’m really conflicted because I definitely want a vented range hood (I’m not comfortable with recirculating models; a plasma norm filter was also considered at one point, but I’m still unsure). The controlled ventilation system is currently uncertain too—we see some benefits, but do we really need it...?
I’m really conflicted because I definitely want a vented range hood (I’m not comfortable with recirculating models; a plasma norm filter was also considered at one point, but I’m still unsure). The controlled ventilation system is currently uncertain too—we see some benefits, but do we really need it...?
Hello,
High temperatures and especially water vapor at high concentrations are produced above the cooking area. This can lead to condensation and deposits forming in the exhaust duct. Therefore, the ductwork should be well insulated, and appropriate filters and cleaning options need to be provided.
Best regards.
Bau-Teufel schrieb:
I've often read that only recirculating range hoods should be used with a mechanical ventilation with heat recovery system; however, I wonder 1. Why exactly is this recommended, and 2. What would happen if we combined a mechanical ventilation with heat recovery system with an exhaust hood? What effects would this have?
High temperatures and especially water vapor at high concentrations are produced above the cooking area. This can lead to condensation and deposits forming in the exhaust duct. Therefore, the ductwork should be well insulated, and appropriate filters and cleaning options need to be provided.
Best regards.
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