JavaScript ist deaktiviert. Für eine bessere Darstellung aktiviere bitte JavaScript in deinem Browser, bevor du fortfährst.

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!

Problems with controlling the heat pump

4.5 Stern(e)
3 Voting

2024-01-06 10:38:00

Answers: 17

Power consumption of a heat pump

4.5 Stern(e)
9 Voting

2023-12-17 15:55:41

Answers: 65

Atypically high offer for ventilation system

5 Stern(e)
4 Voting

2023-12-10 09:02:21

Answers: 92

How to effectively reduce power consumption in BWP and circulation line?

5 Stern(e)
4 Voting

2023-12-18 08:54:23

Answers: 0

Fault reports for Novelan heat pump - experiences?

5 Stern(e)
4 Voting

2023-12-10 09:37:46

Answers: 1

Heat pump: buffer tank, capacity and modulation

4.5 Stern(e)
7 Voting

2023-10-04 17:32:19

Answers: 46

Waiting time after commissioning heat pump

5 Stern(e)
5 Voting

2023-11-22 12:31:38

Answers: 5

Experiences ERW Heat Pump Technology

4.5 Stern(e)
6 Voting

2014-10-18 09:34:52

Answers: 4

KfW 261 - Replacement of oil heating with heat pump - disposal of oil heating

4.5 Stern(e)
5 Voting

2023-11-17 12:02:39

Answers: 6

Interpretation of Earth Drilling Experiences

4 Stern(e)
3 Voting

2023-11-03 22:52:35

Answers: 8

Service water heat pump with return flow utilization

4 Stern(e)
3 Voting

2023-11-13 10:16:26

Answers: 5

Heat pump in the transition period

4 Stern(e)
5 Voting

2023-10-12 14:42:10

Answers: 34

Settings for the heat pump

5 Stern(e)
3 Voting

2023-11-06 11:13:55

Answers: 3

Heat pump properly adjusted - experiences

5 Stern(e)
5 Voting

2023-10-28 22:55:30

Answers: 4

Central ventilation system for EH 40 only approved with DIBT certified devices?

4 Stern(e)
3 Voting

2023-10-30 22:41:40

Answers: 4

Warranty extension for heat pump from alpha innotec - is it worth it?

4.5 Stern(e)
3 Voting

2023-10-25 17:20:17

Answers: 4

Geothermal heat pump installation location and preparation

5 Stern(e)
4 Voting

2023-10-18 12:00:47

Answers: 8

Heating during "high daytime temperatures in autumn"

5 Stern(e)
5 Voting

2023-10-19 09:53:54

Answers: 3

Air-water heat pump: split or combined unit?

4.5 Stern(e)
3 Voting

2023-10-13 10:32:31

Answers: 1

Selection of heat pump in new construction via general contractor

4.5 Stern(e)
5 Voting

2023-10-11 17:08:26

Answers: 8

How to plan heating with a heat pump in new construction?

4.5 Stern(e)
5 Voting

2023-09-30 17:29:11

Answers: 14

Estimate electricity consumption with heat pump

5 Stern(e)
9 Voting

2023-05-16 13:41:41

Answers: 30

Optimization of heat pump LWD 70A with photovoltaics

5 Stern(e)
4 Voting

2023-09-03 16:22:35

Answers: 16

Wolf CWL-2 Ventilation System - Request for a second opinion

4.5 Stern(e)
6 Voting

2023-08-29 21:16:30

Answers: 4

Insufficient depth of pipes to the ground probes?

4.5 Stern(e)
5 Voting

2023-08-06 14:03:18

Answers: 7

Does the ventilation system really pump humid outside air into the house?

4.5 Stern(e)
5 Voting

2023-08-13 22:37:29

Answers: 13

Purchase advice, heat pump comparison: Daikin or Vaillant?

4.5 Stern(e)
4 Voting

2023-08-10 09:02:28

Answers: 19

Hot water preparation heat pump

4.5 Stern(e)
5 Voting

2023-07-28 11:56:28

Answers: 13

Air-to-air vs. air-to-water heat pump KFW55 house - cooling function important

4 Stern(e)
5 Voting

2023-06-26 14:32:29

Answers: 48

The ventilation system is loud and disturbing

5 Stern(e)
5 Voting

2023-07-18 10:40:26

Answers: 21

Room thermostat moist on the front side

5 Stern(e)
5 Voting

2023-07-12 11:33:24

Answers: 2

Is the replacement of the roof window in the bathroom included in the subsidy for the heat pump?

4.5 Stern(e)
7 Voting

2023-07-10 09:02:14

Answers: 10

Monoblock connection with heat conduction on or under the floor slab?

5 Stern(e)
5 Voting

2023-07-03 20:37:16

Answers: 5

Sole-water heat pump with ground probe experiences?

5 Stern(e)
8 Voting

2023-02-01 23:05:41

Answers: 42

Heating decision: air-to-air or air-to-water heat pump

4.5 Stern(e)
6 Voting

2023-06-19 11:18:01

Answers: 27

Is repositioning the heat pump sensible or unnecessary?

4.5 Stern(e)
3 Voting

2023-06-19 13:15:56

Answers: 4

Height of the base of the outdoor unit heat pump

4.5 Stern(e)
4 Voting

2023-06-15 15:55:25

Answers: 10

Heat pump with propane Weishaupt WAB 11

4.5 Stern(e)
4 Voting

2023-06-18 14:06:10

Answers: 1

Ventilation system in the warm summer

4.5 Stern(e)
4 Voting

2023-06-13 07:50:53

Answers: 47

Air-water heat pump behind carport

5 Stern(e)
6 Voting

2023-06-11 01:42:12

Answers: 9

What pressure difference (Pa) is there in controlled residential ventilation?

5 Stern(e)
4 Voting

2020-03-15 11:46:06

Answers: 1

Installation of the brine-water heat pump? 2 options, impact on the COP?

4.5 Stern(e)
5 Voting

2023-05-17 14:03:31

Answers: 2

Ventilation / aeration in the wall instead of over the roof

4.5 Stern(e)
5 Voting

2023-05-05 21:52:57

Answers: 1

Indoor installation of heat pump: What should be considered regarding the air ducts?

4.5 Stern(e)
4 Voting

2023-05-01 09:39:24

Answers: 1

Subsidy for heat pump despite continued operation of existing condensing boiler

4.5 Stern(e)
6 Voting

2023-04-29 10:52:56

Answers: 4

Availability of hydrological reports for heat pump

4.5 Stern(e)
3 Voting

2023-04-26 19:05:47

Answers: 2

Controlled residential ventilation planning/design, experiences

4.5 Stern(e)
5 Voting

2023-04-25 10:54:33

Answers: 6

Heat pump LWZ 403 Sol high supply + return in solar thermal. Underfloor heating is malfunctioning...

4.5 Stern(e)
4 Voting

2023-04-10 21:23:27

Answers: 13

Costs for water-brine heat pump and heating installation

4.5 Stern(e)
3 Voting

2023-04-18 14:03:00

Answers: 0

Connect pool room to controlled residential ventilation? Chlorinated water? Condensation?

4 Stern(e)
3 Voting

2023-03-19 21:27:51

Answers: 6

Correct interpretation of the heat pump

4.5 Stern(e)
3 Voting

2023-04-06 12:49:07

Answers: 5

Sole heat pump - Which model?

5 Stern(e)
4 Voting

2023-03-29 13:46:06

Answers: 1

Expand ground source heat pump to heat a small indoor pool

4.5 Stern(e)
3 Voting

2023-03-19 21:24:12

Answers: 18

Can flies enter the house through controlled residential ventilation?

4.5 Stern(e)
4 Voting

2023-03-02 10:36:07

Answers: 20

Heat Pump Location - Basic Tips

4.5 Stern(e)
4 Voting

2023-03-01 10:29:34

Answers: 3

Air heat pump with cooling - Thermostats

5 Stern(e)
4 Voting

2023-02-28 12:45:37

Answers: 0

Is my heat pump from alpha innotec good?

4.5 Stern(e)
6 Voting

2023-02-23 22:27:59

Answers: 10

Workshop heating and dehumidifying

4.5 Stern(e)
4 Voting

2023-02-18 19:29:18

Answers: 8

NOVELAN LAD9 heat pump error 704

4.5 Stern(e)
3 Voting

2023-02-09 07:11:27

Answers: 8

Air-to-water heat pump: choice between Viessmann and Ochsner

4 Stern(e)
5 Voting

2023-01-31 18:13:34

Answers: 8

Does a ventilation system also filter asbestos safely from the air?

4.5 Stern(e)
3 Voting

2023-01-20 08:41:47

Answers: 3

Internal heat pump in the basement not possible due to groundwater?

5 Stern(e)
5 Voting

2023-01-10 19:40:21

Answers: 37

Air-water heat pump - COP realistic?

4.5 Stern(e)
4 Voting

2023-01-11 12:01:02

Answers: 3

Alternative air-water heat pump to Weishaupt WBB 12-A RMD-AI?

4.5 Stern(e)
3 Voting

2022-12-31 10:29:16

Answers: 9

Controlled Residential Ventilation & Heat Pump: Viessmann vs. Vaillant vs. Zehnder?

5 Stern(e)
7 Voting

2022-11-23 14:12:48

Answers: 47

Enthalpy heat exchanger central controlled residential ventilation

4.5 Stern(e)
3 Voting

2022-11-14 11:01:27

Answers: 29

High humidity despite decentralized ventilation system

4.5 Stern(e)
5 Voting

2022-10-07 13:18:21

Answers: 16

Are the supply and exhaust air valves okay?

5 Stern(e)
4 Voting

2022-11-15 05:24:00

Answers: 5

Positions of supply and exhaust air valves

4.5 Stern(e)
4 Voting

2022-11-13 20:38:38

Answers: 4

Positioning of the air heat pump

5 Stern(e)
5 Voting

2022-11-01 17:30:17

Answers: 5

Heat pump not available. Bridge with a mobile device?

4.5 Stern(e)
6 Voting

2022-10-22 09:12:13

Answers: 5

Volume flow rate specification of controlled residential ventilation for heating load calculation

4.5 Stern(e)
3 Voting

2022-10-14 01:44:29

Answers: 10

Central controlled residential ventilation with heat recovery: Are rooms individually controllable?

4 Stern(e)
3 Voting

2015-04-23 11:59:13

Answers: 20

Ventilation through wall or ceiling outlets?

4 Stern(e)
3 Voting

2022-07-24 00:39:07

Answers: 10

Ventilation system as a combined unit with Bafa funding

4.5 Stern(e)
4 Voting

2022-07-15 19:36:45

Answers: 3

Ventilation system cellar without windows

4.5 Stern(e)
3 Voting

2022-06-13 13:17:11

Answers: 18

Can the apartment ventilation system of controlled residential ventilation enter the sheds?

4.5 Stern(e)
5 Voting

2022-06-11 00:22:45

Answers: 11

Controlled residential ventilation number of ventilation inlets and outlets

4.5 Stern(e)
3 Voting

2022-06-11 00:48:28

Answers: 1

Air fountain / Drainage pipe for preheating of the return cold water (ZWL)?

5 Stern(e)
3 Voting

2022-06-10 21:30:31

Answers: 1

Electricity meter for air-water heat pump, normal electricity, and photovoltaics?

5 Stern(e)
5 Voting

2022-06-08 10:03:41

Answers: 5

Dual fan variants: advantages and disadvantages

4.5 Stern(e)
4 Voting

2022-06-07 00:56:57

Answers: 10

decentralized ventilation - various manufacturers

5 Stern(e)
5 Voting

2012-10-30 18:27:40

Answers: 39

Which decentralized ventilation system is sensible?

5 Stern(e)
6 Voting

2021-06-06 12:27:21

Answers: 7

Central ventilation system - cooling/heating air through underground pipes?

4.5 Stern(e)
4 Voting

2022-06-06 19:39:31

Answers: 1

Air-water heat pump + central ventilation system with active cooling - Which one?

4.5 Stern(e)
5 Voting

2022-06-04 14:57:59

Answers: 7

Air-to-water heat pump, central ventilation system, and air conditioning

5 Stern(e)
4 Voting

2019-12-28 12:50:56

Answers: 4

Planning controlled residential ventilation via local heating / sanitary company

4.5 Stern(e)
7 Voting

2022-05-03 21:31:35

Answers: 20

Controlled residential ventilation - alternative positioning of supply air valves

4.5 Stern(e)
4 Voting

2022-05-22 13:23:15

Answers: 7

Rotex heat pump experiences with solar thermal collectors

5 Stern(e)
3 Voting

2022-03-18 08:58:46

Answers: 4

Pluggit B 90 ventilation system experiences

4 Stern(e)
5 Voting

2022-03-09 21:45:22

Answers: 0

with / without central ventilation system experiences

4.5 Stern(e)
7 Voting

2022-03-05 15:32:03

Answers: 48

Floor outlets (supply air) under sofa and desks?

4.5 Stern(e)
5 Voting

2018-07-14 01:03:10

Answers: 36

Interpretation of a central ventilation system

5 Stern(e)
5 Voting

2022-03-01 16:33:12

Answers: 17

Air source heat pump and controlled residential ventilation in terraced mid-terrace house

4.5 Stern(e)
5 Voting

2022-03-01 07:21:36

Answers: 4

Energetic renovation of old buildings - is a ventilation system necessary or not?

4.5 Stern(e)
4 Voting

2022-01-04 14:22:13

Answers: 12

Turn off Danfoss Airunit W2 at high electricity prices

4.5 Stern(e)
4 Voting

2022-02-16 21:40:34

Answers: 2

Problems with unwanted drafts

4.5 Stern(e)
5 Voting

2022-02-13 01:05:17

Answers: 15

Maintenance contract residential ventilation, cheaper filters

5 Stern(e)
4 Voting

2022-02-08 11:32:46

Answers: 29

Extremely dry air due to ventilation heating - what can we do?

5 Stern(e)
8 Voting

2014-03-02 07:56:12

Answers: 27

decentralized residential ventilation Vario-Vent (ZSA)

NAN Stern(e)
0 Voting

2017-01-06 19:08:25

Answers: 16