galdreth
2019-10-26 17:48:12
- #1
Hello everyone,
I have been thinking about the implementation of a controlled residential ventilation system with heat recovery. The house is from ’54 and is being completely renovated. The living area will later be about 125 sqm. There is an example calculator from Bosch which, based on the rough numbers of the rooms, comes to a "Bosch Vent 5000C HR230W" with a maximum duct length of 15 m.
I have now tried to place the whole thing on the actual floor plans myself. I come to a maximum of 11 m duct length.
The basic idea is that I want to use one of the old chimneys (the centrally located one) for the vertical ducts (DN160). The other chimney in the north will be removed completely. Starting from the first floor, there are wooden beam ceilings. Is it realistic to install flat ducts (flexible 140x50mm) in the framework there, and has anyone done that before?
In the basement the controlled residential ventilation unit will be placed centrally at the old location of the chimney. Outdoor air intake in the south under the entrance stairs. Exhaust air in the north (just property boundary and compost). The narrow passage would have to be widened on the plan.
Ground floor: Branches and two outlets in the living room coming through the side wall. Then two ducts go for exhaust air to the kitchen and the WC. At the moment it is drawn so that flat ducts run along the top of the walls. Kitchen and bathroom each get 2 separate ducts to the main line (sound insulation).
Attic and roof space: Several flat ducts go mostly hidden in the ceiling outwards until I am behind the rafters of the roof. Then I have about half a meter of space upwards in the attic so that I can lay round ducts with large bending radii again to the outlets and inlets of the floors below. Later the attic will be expanded and also connected to the ventilation.
I would be curious if I have overlooked something major, or if it really works like this.
I have been thinking about the implementation of a controlled residential ventilation system with heat recovery. The house is from ’54 and is being completely renovated. The living area will later be about 125 sqm. There is an example calculator from Bosch which, based on the rough numbers of the rooms, comes to a "Bosch Vent 5000C HR230W" with a maximum duct length of 15 m.
I have now tried to place the whole thing on the actual floor plans myself. I come to a maximum of 11 m duct length.
The basic idea is that I want to use one of the old chimneys (the centrally located one) for the vertical ducts (DN160). The other chimney in the north will be removed completely. Starting from the first floor, there are wooden beam ceilings. Is it realistic to install flat ducts (flexible 140x50mm) in the framework there, and has anyone done that before?
In the basement the controlled residential ventilation unit will be placed centrally at the old location of the chimney. Outdoor air intake in the south under the entrance stairs. Exhaust air in the north (just property boundary and compost). The narrow passage would have to be widened on the plan.
Ground floor: Branches and two outlets in the living room coming through the side wall. Then two ducts go for exhaust air to the kitchen and the WC. At the moment it is drawn so that flat ducts run along the top of the walls. Kitchen and bathroom each get 2 separate ducts to the main line (sound insulation).
Attic and roof space: Several flat ducts go mostly hidden in the ceiling outwards until I am behind the rafters of the roof. Then I have about half a meter of space upwards in the attic so that I can lay round ducts with large bending radii again to the outlets and inlets of the floors below. Later the attic will be expanded and also connected to the ventilation.
I would be curious if I have overlooked something major, or if it really works like this.