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Heat Pumps / Ventilation Systems

Discover how to save energy with heat pumps and ventilation systems and create a healthy indoor climate – learn what to watch out for when choosing and installing!

Ventilation settings good? - Electricity consumption quite high

4.5 Stern(e)
4 Voting

2022-01-11 17:33:00

Answers: 4

Question about everyday life with a controlled residential ventilation system

5 Stern(e)
4 Voting

2016-05-11 08:04:55

Answers: 58

Condensate/puddles on pipes - despite controlled residential ventilation and dehumidifier

4.5 Stern(e)
4 Voting

2021-12-31 11:06:37

Answers: 11

Rough installation of central ventilation system

5 Stern(e)
4 Voting

2021-12-22 07:51:01

Answers: 20

Controlled residential ventilation (heat recovery) + air well + exhaust hood and "independent" chimney

4.5 Stern(e)
6 Voting

2021-02-11 23:10:31

Answers: 15

Passive house with controlled indoor ventilation: supply air covered by furniture

4.5 Stern(e)
4 Voting

2021-12-06 15:03:06

Answers: 1

Complete ventilation duct for the upper floor through a timber stud wall?

4 Stern(e)
3 Voting

2021-11-29 13:18:43

Answers: 3

Controlled residential ventilation with enthalpy or rotary heat exchanger

5 Stern(e)
4 Voting

2020-04-05 21:15:42

Answers: 25

Minimum distance between ventilation outlet / obstacle

4.5 Stern(e)
3 Voting

2021-11-23 12:23:27

Answers: 4

KWL outdoor air and exhaust air in extension

5 Stern(e)
3 Voting

2021-11-13 22:53:36

Answers: 2

Central ventilation system - air outlet in the floor or in the ceiling?

4.5 Stern(e)
5 Voting

2021-10-31 22:23:18

Answers: 11

Central ventilation system - Required sensors, intelligent control

4.5 Stern(e)
5 Voting

2021-10-22 23:32:23

Answers: 5

Suppliers / brands for central ventilation systems? Selection criteria?

5 Stern(e)
4 Voting

2021-10-18 18:16:27

Answers: 11

Ventilation system - Noise level dependent on which factors?

5 Stern(e)
8 Voting

2021-10-15 16:37:40

Answers: 53

Noise generation in the ventilation system

4.5 Stern(e)
8 Voting

2021-09-29 14:08:07

Answers: 19

Looking for experiences with Lossnay Vorlauf-50 or Vorlauf-100 (Mitsubishi)

4.5 Stern(e)
4 Voting

2021-10-01 19:17:01

Answers: 0

Controlled residential ventilation - ventilation ducts from outside - keyword: condensate

4.5 Stern(e)
5 Voting

2021-09-25 00:35:34

Answers: 4

Controlled residential ventilation planning: position of components; length of ducts

5 Stern(e)
4 Voting

2021-06-18 20:29:54

Answers: 13

Ventilation profiles Vallo Plus 510MV

4.5 Stern(e)
3 Voting

2021-08-29 21:27:30

Answers: 4

How to spray silicone onto the drilled ventilation pipe?

4.5 Stern(e)
6 Voting

2021-07-16 13:34:04

Answers: 4

Making a filter yourself, what should one pay attention to?

4.5 Stern(e)
6 Voting

2021-07-18 00:19:46

Answers: 3

Distance between exhaust air and outdoor air only 2 meters

4.5 Stern(e)
4 Voting

2021-07-26 16:15:25

Answers: 17

Is the neighbor's ventilation system set too high and therefore too loud?

5 Stern(e)
12 Voting

2021-07-19 16:43:36

Answers: 34

Controlled residential ventilation - Planning the positions for supply air / exhaust air

4.5 Stern(e)
7 Voting

2021-05-05 02:01:37

Answers: 60

Controlled residential ventilation supply air in the living area near the sofa

4.5 Stern(e)
3 Voting

2021-05-29 14:19:23

Answers: 19

Is controlled residential ventilation necessary with expanded clay and KFW55?

4.5 Stern(e)
3 Voting

2021-05-19 07:34:17

Answers: 29

Alternative to central/decentralized ventilation

5 Stern(e)
13 Voting

2021-04-02 22:59:10

Answers: 61

Decentralized ventilation system that is hardly visible on the exterior facade

4.5 Stern(e)
9 Voting

2021-04-08 11:18:41

Answers: 47

KfW 55 - Ventilation system yes/no? - Experiences

5 Stern(e)
23 Voting

2020-05-19 13:29:21

Answers: 222

Controlled residential ventilation in the basement, outside air through the roof

4.5 Stern(e)
8 Voting

2021-04-06 20:40:48

Answers: 7

Ventilation system in single-family house without effect = planning error?

5 Stern(e)
25 Voting

2021-02-01 19:35:25

Answers: 87

Experiences with Pluggit AP310 and Roof Penetration DH160-KS

5 Stern(e)
5 Voting

2021-02-27 12:23:58

Answers: 4

Ventilation in the dressing room on the attic floor was forgotten

4.5 Stern(e)
7 Voting

2021-03-05 19:37:04

Answers: 9

Condensate at ventilation outlet

4.5 Stern(e)
3 Voting

2021-03-01 16:19:22

Answers: 27

Which controlled residential ventilation system with Viessmann heating in combination with BAFA?

4.5 Stern(e)
7 Voting

2021-01-04 20:54:05

Answers: 7

Install ventilation pipes of the controlled residential ventilation system through the sloping roof

4.5 Stern(e)
6 Voting

2021-02-14 14:21:54

Answers: 12

Ceiling valves in style - does such a thing exist?

5 Stern(e)
7 Voting

2021-02-10 10:08:41

Answers: 33

Controlled Residential Ventilation Manufacturers - Which are Recommended and Where to Plan?

4.5 Stern(e)
8 Voting

2020-09-14 20:23:09

Answers: 17

Central residential ventilation - space requirements?

4.5 Stern(e)
4 Voting

2021-01-22 14:01:49

Answers: 7

Dimplex controlled residential ventilation distance air outlets exhaust air / outside air

4.5 Stern(e)
7 Voting

2021-01-14 16:06:49

Answers: 5

Basement ventilation with multi-room systems

4.5 Stern(e)
3 Voting

2021-01-11 12:04:53

Answers: 4

Vallox 510 MV basement installations with external mushrooms side by side?

4.5 Stern(e)
4 Voting

2020-12-13 20:58:25

Answers: 9

Ventilation: Controlled residential ventilation in the living room concealed by sliding door

4.5 Stern(e)
6 Voting

2021-01-09 15:54:00

Answers: 17

Retrofitting central ventilation for the attic

4.5 Stern(e)
3 Voting

2020-12-02 11:00:42

Answers: 4

House with 180 m2 => RecoVair VAR 260/4 or better 360/4?

4.5 Stern(e)
7 Voting

2018-07-07 12:01:34

Answers: 17

Volume standard for ventilation system in the bathroom

5 Stern(e)
4 Voting

2020-11-03 11:08:22

Answers: 2

Air exchange rates and air quality - understanding

4.5 Stern(e)
7 Voting

2020-10-19 09:37:35

Answers: 27

Controlled residential ventilation manufacturer selection - How to approach?

4.5 Stern(e)
7 Voting

2020-10-05 22:38:14

Answers: 43

Controlled residential ventilation: positioning of supply and exhaust air in my designs

4.5 Stern(e)
8 Voting

2020-10-12 00:03:53

Answers: 44

New construction: Floor structure / ceiling thicknesses for controlled residential ventilation piping

5 Stern(e)
5 Voting

2020-08-11 20:08:34

Answers: 10

Surcharge for controlled residential ventilation in the consulting contract okay?

4.5 Stern(e)
3 Voting

2020-09-01 08:31:01

Answers: 7

Missing ceiling ventilation outlet in the hallway dramatic?

4 Stern(e)
5 Voting

2020-09-10 17:00:53

Answers: 12

Controlled residential ventilation in bungalow: Is it necessary to hang down the ceiling?

4 Stern(e)
10 Voting

2019-07-05 18:51:25

Answers: 23

Floor construction in height with Vallox KWL pipe routing questionable

4.5 Stern(e)
4 Voting

2020-07-07 07:19:51

Answers: 34

Pipe installation: Supply and exhaust air over the doors or in the middle of the room?

5 Stern(e)
5 Voting

2020-06-15 16:48:51

Answers: 5

Is a central ventilation system absolutely necessary?

4.5 Stern(e)
9 Voting

2014-03-23 20:38:21

Answers: 54

Air heat pump or use gas and solar?

4 Stern(e)
5 Voting

2012-07-11 19:15:21

Answers: 300

Controlled residential ventilation even in the hallway? We don’t have it - stuffy

5 Stern(e)
5 Voting

2020-06-19 09:38:21

Answers: 11

Decentralized ventilation system: Which manufacturer?

4.5 Stern(e)
6 Voting

2019-09-29 12:27:08

Answers: 9

Ventilation in summer without controlled residential ventilation is problematic

4.5 Stern(e)
4 Voting

2020-06-12 21:05:11

Answers: 19

Partial Controlled Residential Ventilation / Retrofit Climate in the Attic

5 Stern(e)
5 Voting

2020-06-04 14:32:53

Answers: 12

Heat pump system funding

4.5 Stern(e)
4 Voting

2020-05-31 17:16:41

Answers: 5

Decentralized ventilation only in individual rooms in new construction KfW 55?

4.5 Stern(e)
4 Voting

2020-03-10 11:07:26

Answers: 26

Decentralized ventilation and 4-Pascal switch

5 Stern(e)
4 Voting

2017-08-22 11:54:22

Answers: 5

Proper ventilation behavior without controlled residential ventilation

4 Stern(e)
12 Voting

2019-11-28 18:00:56

Answers: 19

Installing controlled residential ventilation in the basement - outdoor air / exhaust air, tips?

4.5 Stern(e)
5 Voting

2019-12-13 09:30:04

Answers: 15

Heat pump in new building without photovoltaic system

5 Stern(e)
3 Voting

2020-05-03 00:27:52

Answers: 15

Central supply and exhaust ventilation instead of a central exhaust system

4 Stern(e)
17 Voting

2020-01-17 20:34:02

Answers: 7

Bathroom ventilation - Is an extra fan needed for the shower?

4.5 Stern(e)
5 Voting

2020-04-11 22:49:54

Answers: 5

CO2 sensor in controlled residential ventilation with heat recovery

4.5 Stern(e)
5 Voting

2020-04-01 10:12:47

Answers: 1

Low humidity room climate (25%)

5 Stern(e)
3 Voting

2020-03-25 22:10:58

Answers: 19

Close ventilation opening

4 Stern(e)
5 Voting

2020-03-23 23:47:36

Answers: 10

Do ventilation ducts need to be insulated?

4 Stern(e)
3 Voting

2020-02-27 10:46:38

Answers: 13

Water ingress through the ventilation system, what to do, liability?

4.5 Stern(e)
6 Voting

2020-02-23 17:24:29

Answers: 20

Controlled residential ventilation for new buildings pipe installations

4 Stern(e)
6 Voting

2020-02-14 08:17:02

Answers: 8

Where to install the ventilation hose for controlled residential ventilation?

4.5 Stern(e)
9 Voting

2020-02-04 15:04:58

Answers: 17

Is KFW 40+ also possible with a decentralized ventilation system?

4 Stern(e)
7 Voting

2019-12-04 08:00:48

Answers: 8

Lower indoor temperature after commissioning Controlled ventilation system with heat recovery

4 Stern(e)
13 Voting

2020-01-24 13:15:33

Answers: 14

Central ventilation system - is moisture recovery necessary?

4 Stern(e)
17 Voting

2019-12-30 16:17:50

Answers: 113

Electricity consumption of your heat pumps - comparison values?

4 Stern(e)
12 Voting

2018-01-05 00:33:41

Answers: 22

Difference in purchase cost between gas pump or heat pump

4 Stern(e)
10 Voting

2019-12-14 15:33:02

Answers: 74

Planning central ventilation system - volume flow, positioning?

4 Stern(e)
6 Voting

2019-11-27 13:25:16

Answers: 12

Frame ventilation - How large does the air gap need to be?

4 Stern(e)
5 Voting

2019-12-02 11:16:55

Answers: 14

Cancel planned decentralized ventilation system?

4.5 Stern(e)
4 Voting

2019-11-08 12:18:37

Answers: 11

Which heat pump to use in monolithic construction?

4 Stern(e)
14 Voting

2019-11-04 10:26:24

Answers: 33

Controlled residential ventilation for the renovation of a small house built in 1954

4.5 Stern(e)
3 Voting

2019-10-26 17:48:12

Answers: 0

Window rebate ventilation or controlled supply and exhaust ventilation?

4 Stern(e)
10 Voting

2019-09-13 16:31:30

Answers: 25

bluMartin ventilation system - experiences? / questions

4 Stern(e)
9 Voting

2015-07-31 07:19:46

Answers: 8

Systemair VR400DCV/DE vs. Helios EC300 Pro/ET

4 Stern(e)
5 Voting

2011-01-10 14:30:42

Answers: 3

Proper ventilation without controlled residential ventilation, possibly with a hygrometer

4 Stern(e)
7 Voting

2019-09-13 11:47:14

Answers: 6

Controlled residential ventilation / DIBT stove / pressure monitor

4.5 Stern(e)
7 Voting

2013-07-16 09:23:41

Answers: 59

Is it no longer allowed to open the windows with a ventilation system?

4 Stern(e)
12 Voting

2019-09-05 13:27:15

Answers: 15

Decentralized Ventilation Experiences

4 Stern(e)
5 Voting

2019-09-04 12:15:53

Answers: 4

Does anyone know the ventilation system from Getair?

4 Stern(e)
5 Voting

2016-08-31 22:03:04

Answers: 13

Optimal prefabricated house heating: air-to-air heat pump / air-to-water heat pump?

4.5 Stern(e)
6 Voting

2019-08-13 00:05:15

Answers: 5

Experience with Fujitsu - Zewotherm Duo - Air-to-Water Heat Pump

4.5 Stern(e)
5 Voting

2017-10-09 08:42:31

Answers: 14

Controlled residential ventilation in a thin ceiling - soundproofing?

4.5 Stern(e)
5 Voting

2019-07-16 10:45:52

Answers: 7

Manufacturer & provider of controlled residential ventilation with EWT air well in Hessen

4 Stern(e)
4 Voting

2018-09-29 14:42:02

Answers: 1

Pipe routing <-> Flow noises

4 Stern(e)
7 Voting

2019-04-28 22:06:26

Answers: 3

Ceiling outlets for controlled residential ventilation, is that correct?

4 Stern(e)
5 Voting

2019-06-02 13:22:41

Answers: 33