Hello everyone,
We will soon start an extension with the following rooms:
On the ground floor (GF)
Storage room 4.3m2 (46 sq ft)
Hallway 11.0m2 (118 sq ft)
Bedroom 17.6m2 (189 sq ft)
Shower 8.0m2 (86 sq ft)
On the upper floor (UF)
Living and kitchen area 38.0m2 (409 sq ft)
Pantry 1.7m2 (18 sq ft)
WC 1.7m2 (18 sq ft)
Ceiling height GF 2.37m (7 ft 9 in)
Ceiling height UF 2.45m (8 ft)
Wall construction 36.5cm (14 in) Poroton clay blocks
I would like to install a decentralized ventilation system in the bedroom and an exhaust fan in the shower.
On the upper floor, if possible, the living and kitchen area should be ventilated with one decentralized unit.
The WC should be equipped with an exhaust fan.
A central ventilation system is not an option due to the room height.
Is my approach feasible, or are there better concepts?
Which devices and manufacturers would you recommend?
Units with a cross-counterflow heat exchanger are preferred.
Noise level, air volume, and heat recovery should be appropriate for the respective rooms.
I would appreciate any advice and suggestions.
Best regards
We will soon start an extension with the following rooms:
On the ground floor (GF)
Storage room 4.3m2 (46 sq ft)
Hallway 11.0m2 (118 sq ft)
Bedroom 17.6m2 (189 sq ft)
Shower 8.0m2 (86 sq ft)
On the upper floor (UF)
Living and kitchen area 38.0m2 (409 sq ft)
Pantry 1.7m2 (18 sq ft)
WC 1.7m2 (18 sq ft)
Ceiling height GF 2.37m (7 ft 9 in)
Ceiling height UF 2.45m (8 ft)
Wall construction 36.5cm (14 in) Poroton clay blocks
I would like to install a decentralized ventilation system in the bedroom and an exhaust fan in the shower.
On the upper floor, if possible, the living and kitchen area should be ventilated with one decentralized unit.
The WC should be equipped with an exhaust fan.
A central ventilation system is not an option due to the room height.
Is my approach feasible, or are there better concepts?
Which devices and manufacturers would you recommend?
Units with a cross-counterflow heat exchanger are preferred.
Noise level, air volume, and heat recovery should be appropriate for the respective rooms.
I would appreciate any advice and suggestions.
Best regards
Hmm, I thought I had read that they change their airflow direction every 70 seconds. That actually makes sense, since the ceramic element then needs to be reheated by the warm room air. Hence the continuous switching.
Whether having two fans working in a push-pull setup (one always pushing air in the opposite direction of the other) is mandatory, I’m still not really sure. It’s clear that using two fans moves a larger volume of air.
Whether having two fans working in a push-pull setup (one always pushing air in the opposite direction of the other) is mandatory, I’m still not really sure. It’s clear that using two fans moves a larger volume of air.
N
nordanneyX8 Jun 2022 16:55Deliverer schrieb:
If you want a ventilation system with heat recovery, one unit is not enough. One unit can only extract air. They alternate between extracting and supplying air. You don’t use just one, because in a well-sealed house this would cause overpressure and underpressure, and the units would not perform well.
Also, heat recovery is not possible if each unit only operates in one direction. In that case, you might as well save the expense and just open and close the windows directly.