ᐅ Mechanical ventilation with heat recovery in insulated attic or basement?
Created on: 12 Jun 2018 08:59
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Pommes01At the moment, our ventilation system is being planned, and the exact location is under discussion.
The technical room is already occupied by the heat pump, water, and electrical installations. There is still space in the utility room, but the pipes would have to go through the wall into the unheated basement and from there again through the wall to the outside.
The installer has now suggested routing the system to the attic and venting through the roof. The attic is insulated up to the ridge with wood fiber boards, as is the ceiling from the upper floor into the attic.
In your opinion, which solution would be better and why?
The planned system is a Wolf CWL400. I am wondering if a cheaper CWL300 might be sufficient. According to the installer, this model would always operate at full capacity.
The technical room is already occupied by the heat pump, water, and electrical installations. There is still space in the utility room, but the pipes would have to go through the wall into the unheated basement and from there again through the wall to the outside.
The installer has now suggested routing the system to the attic and venting through the roof. The attic is insulated up to the ridge with wood fiber boards, as is the ceiling from the upper floor into the attic.
In your opinion, which solution would be better and why?
The planned system is a Wolf CWL400. I am wondering if a cheaper CWL300 might be sufficient. According to the installer, this model would always operate at full capacity.
Choose the CWL400 if you want to save on operating costs.
Opt for the basement if you want to avoid moisture damage and installation costs.
Install the system in the technical basement room just below the ceiling; that should work fine.
My utility room is 4.5 sqm (48 sq ft) and includes: controlled residential ventilation (CWL 300), gas boiler + 300 L (79 gallons) storage tank and solar station, washing machine + dryer, network equipment, electrical components, and heating circuit distributors.
Very bad idea; condensate formation is inevitable.
The roof is also rather suboptimal due to potential condensate damage. Of course, you can insulate everything (unit + pipes) separately, but that adds costs which, in my opinion, are unnecessary.
Opt for the basement if you want to avoid moisture damage and installation costs.
Install the system in the technical basement room just below the ceiling; that should work fine.
My utility room is 4.5 sqm (48 sq ft) and includes: controlled residential ventilation (CWL 300), gas boiler + 300 L (79 gallons) storage tank and solar station, washing machine + dryer, network equipment, electrical components, and heating circuit distributors.
Pommes01 schrieb:
the pipes would then have to go through the wall into the unheated basement and from there through the wall outside again.
Very bad idea; condensate formation is inevitable.
The roof is also rather suboptimal due to potential condensate damage. Of course, you can insulate everything (unit + pipes) separately, but that adds costs which, in my opinion, are unnecessary.
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