What did you pay for your controlled residential ventilation system?

Wolf CWL 300 with simple HRV exchanger without pre-/reheat coil, or other air treatment with Helios flat ducts in the insulation ground floor ceilings/wall outlets upper floor floor/wall

A total of 4x exhaust air and 5x supply air... 2x silencers on the unit and a condensate drain...

about 7,000 including installation but in 2011

164 sqm living area

Controlled residential ventilation Helios 270 EC
2x 10-way distributors
2x heavy silencers (17kg each)
7x supply air valves
7x exhaust air valves
150 linear meters round ducts
Spiral ducts and small parts

Planning and installation own work

Cost 4500€

130 m² living space

Controlled residential ventilation Paul Novus 300
Ground heat exchanger InovaTech Inno SLD301
Distribution via spiral duct to 5 supply air and 4 exhaust air rooms
After each valve a silencer plus 4 device silencers
Planning and commissioning see ground heat exchanger
Installation by own effort

Cost 8500€

157 m² living space, 6 supply air vents, 5 exhaust air vents, 2 silencers, installation with flat ducts on the raw ceiling, Vaillant recoVAIR 260/4 E (central controlled residential ventilation with heat recovery and humidity recovery), delivery and installation, price July 2015 by the developer: €10,680.00.

I know a comparable project, slightly larger scope (2 full floors + attic), round ducts in concrete ceiling, about €12,000, spring 2015.

PS. Please always specify the offer date, prices change over time.

Vallox ventilation system ValloPlus 510 SE for 250 sqm living area. (300sqm floor area), installation of the ducts in the concrete ceilings. Price mid 2013 TEUR 11 and a few small ones, 8x exhaust air and 9x supply air, higher quality silencers, stainless steel grids on the facade. Price including installation