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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!

Controlled residential ventilation with heat recovery is not a must..??! Please help

4.5 Stern(e)
4 Voting

2012-11-12 10:02:18

Answers: 7

Controlled residential ventilation with heat recovery --- a confusing maze?

4.5 Stern(e)
4 Voting

2014-09-13 07:14:04

Answers: 12

Electric heat pump with an annual performance factor > 4.5 and gas heat pump with an annual performance factor > 1.5. Costs?

4.5 Stern(e)
3 Voting

2015-03-26 08:56:13

Answers: 5

Pros and Cons of Controlled Residential Ventilation? Advantages and Disadvantages of Controlled Residential Ventilation?

5 Stern(e)
5 Voting

2012-07-05 20:05:21

Answers: 7

Retrofit existing central controlled residential ventilation with earth air exchanger?

4.5 Stern(e)
3 Voting

2015-05-15 10:05:56

Answers: 0

Ground source heat pump vs. air source heat pump

5 Stern(e)
5 Voting

2015-05-03 20:20:03

Answers: 24

central ventilation system

4.5 Stern(e)
3 Voting

2013-10-20 14:19:40

Answers: 8

Save space by ceiling mounting?

4.5 Stern(e)
3 Voting

2013-06-10 09:34:42

Answers: 7

House construction, KFW70, approx. 150m², which heating? Gas/air-water heat pump?

4 Stern(e)
5 Voting

2015-04-14 12:58:11

Answers: 36

Would you take an air heat pump again? Looking for alternatives to air heat pumps

5 Stern(e)
4 Voting

2015-04-09 19:45:00

Answers: 18

Significance of geothermal heat exchangers in controlled residential ventilation

4.5 Stern(e)
5 Voting

2015-03-20 09:17:18

Answers: 6

Connect controlled residential ventilation to ground collector heating?

5 Stern(e)
4 Voting

2015-03-20 09:18:41

Answers: 1

Choose air-water heat pump Viessmann or Alpha Innotec?

5 Stern(e)
4 Voting

2015-03-09 22:23:04

Answers: 5

Sole heat pump flat collector 2 heating circuits

4.5 Stern(e)
5 Voting

2015-03-02 15:59:35

Answers: 13

Student dares - Self-built ventilation system

4.5 Stern(e)
3 Voting

2015-02-17 23:04:32

Answers: 14

Number of air vents

5 Stern(e)
3 Voting

2015-02-06 08:41:23

Answers: 24

Problems with controlled residential ventilation and chimney stove

4.5 Stern(e)
3 Voting

2012-07-19 01:19:02

Answers: 6

Air-water heat pump with solar thermal and fireplace? Cost/benefit/meaning

4.5 Stern(e)
5 Voting

2015-02-01 15:57:49

Answers: 34

Ventilation concept

4 Stern(e)
3 Voting

2015-01-25 23:46:14

Answers: 1

Flat duct in screed

4.5 Stern(e)
4 Voting

2015-01-05 21:21:16

Answers: 6

Door gap Controlled residential ventilation Ventilation gap for air exchange

4 Stern(e)
5 Voting

2014-12-21 16:24:50

Answers: 17

How are heat pumps preferred?

4.5 Stern(e)
4 Voting

2014-11-18 19:47:12

Answers: 11

Controlled residential ventilation - ventilation duct - screws protrude into the duct!!!

4 Stern(e)
5 Voting

2014-11-28 09:21:51

Answers: 6

Ventilation in windowless rooms

4.5 Stern(e)
3 Voting

2014-11-30 07:48:04

Answers: 8

New gas heating system - How to design underfloor heating based on a heat pump?

4.5 Stern(e)
3 Voting

2014-10-20 08:53:15

Answers: 11

Is purchasing a heat pump really not worth it?

4.5 Stern(e)
5 Voting

2012-09-22 23:40:44

Answers: 7

Sealing the outer grid of a decentralized ventilation system

4.5 Stern(e)
4 Voting

2014-11-16 15:52:14

Answers: 1

Controlled residential ventilation/heating: Save settings when power is lost

4 Stern(e)
4 Voting

2014-10-23 10:40:25

Answers: 7

Inspection of house systems

5 Stern(e)
5 Voting

2014-10-18 13:57:47

Answers: 2

Wolf CWL in the attic and insulation / frost resistance

4.5 Stern(e)
3 Voting

2014-10-02 10:17:08

Answers: 0

Controlled residential ventilation in the utility room is very audible - Too loud?

5 Stern(e)
4 Voting

2014-09-13 21:57:54

Answers: 5

Ventilation in prefab houses (wood frame with ETICS) also in solid houses?

4.5 Stern(e)
5 Voting

2014-08-27 19:54:40

Answers: 36

Controlled residential ventilation: How do I find the right provider/the right system?

4.5 Stern(e)
3 Voting

2014-08-29 13:40:04

Answers: 1

Decentralized residential ventilation, exhaust air heat pump - experiences?

4.5 Stern(e)
3 Voting

2014-01-17 08:02:46

Answers: 10

Installation of controlled residential ventilation - is underground supply air sensible?

4 Stern(e)
5 Voting

2014-07-22 15:48:02

Answers: 3

Installation of controlled residential ventilation - in the ceiling or outside?

5 Stern(e)
5 Voting

2014-07-14 23:39:47

Answers: 20

KfW 70 - 36er Ytong - Ventilation system

4.5 Stern(e)
3 Voting

2013-08-22 18:03:10

Answers: 39

Is a central ventilation system good?

4.5 Stern(e)
5 Voting

2014-02-28 06:55:53

Answers: 7

Looking for experience with Rotex HPSU heat pump and solar?

4.5 Stern(e)
5 Voting

2014-07-10 08:37:35

Answers: 0

Controlled residential ventilation makes sense for us or is even necessary.

5 Stern(e)
5 Voting

2014-06-27 11:44:18

Answers: 5

Decentralized controlled residential ventilation so expensive?

4 Stern(e)
5 Voting

2014-05-23 12:23:55

Answers: 38

Which manufacturer produces water heat pumps?

4.5 Stern(e)
3 Voting

2014-06-13 12:39:00

Answers: 5

Controlled residential ventilation with heat recovery - is the planning okay?

5 Stern(e)
3 Voting

2014-06-12 09:09:33

Answers: 10

Combination of central and decentralized ventilation

4 Stern(e)
3 Voting

2014-06-03 21:51:17

Answers: 5

Combine photovoltaics with air-water heat pump heating + domestic hot water

4.5 Stern(e)
5 Voting

2014-06-05 22:15:12

Answers: 8

Lunos e^2 and Ego installation with KNX

4.5 Stern(e)
3 Voting

2014-05-02 13:42:00

Answers: 9

Room ventilation KFW55 apartment

4.5 Stern(e)
5 Voting

2014-05-30 23:03:55

Answers: 6

When do you notice that the controlled residential ventilation system is working?

4 Stern(e)
3 Voting

2014-04-02 12:36:57

Answers: 18

Timer for hot water heat pump

4 Stern(e)
3 Voting

2014-05-05 17:11:15

Answers: 2

What performance does our heat pump need?

4.5 Stern(e)
3 Voting

2014-05-01 10:42:10

Answers: 6

Is residential ventilation only meaningful for 3 bedrooms?

4.5 Stern(e)
3 Voting

2014-04-21 20:17:02

Answers: 3

Contact person for central controlled residential ventilation in Berlin?

4.5 Stern(e)
5 Voting

2014-04-07 17:01:36

Answers: 2

Install air-water heat pump in garage?

4.5 Stern(e)
5 Voting

2014-03-09 13:40:14

Answers: 6

Cross-counterflow heat exchanger with condensate drainage

4.5 Stern(e)
5 Voting

2014-03-22 12:11:08

Answers: 6

Decentralized ventilation system with 24V?

4.5 Stern(e)
5 Voting

2014-02-19 09:54:35

Answers: 8

Gas condensing boiler or LW heat pump for water-bearing fireplace?

4.5 Stern(e)
5 Voting

2014-02-23 23:35:55

Answers: 18

Residential ventilation with Schiedel AERA-COMFORT

4.5 Stern(e)
5 Voting

2014-02-26 09:22:51

Answers: 7

KFW70 heat pump, underfloor heating, ventilation system, and photovoltaic

4 Stern(e)
5 Voting

2012-05-31 15:49:26

Answers: 7

Solar heat pump / what to watch for in the offer (single-family house, new construction, KFW70)

4.5 Stern(e)
6 Voting

2014-01-31 08:21:01

Answers: 22

Poor quality of groundwater -> Brine heat pump?

4.5 Stern(e)
3 Voting

2014-02-04 21:25:37

Answers: 0

Water/Water Heat Pump

4.5 Stern(e)
4 Voting

2014-01-30 09:30:38

Answers: 2

Set the heat pump correctly

5 Stern(e)
4 Voting

2014-01-26 12:19:10

Answers: 2

New Building KfW 70: Controlled Residential Ventilation Decentralized or Central?

4.5 Stern(e)
4 Voting

2014-01-20 14:15:55

Answers: 2

Protocol of hydraulic balancing

4.5 Stern(e)
5 Voting

2014-01-07 18:53:30

Answers: 1

Air-water heat pump and controlled residential ventilation with heat recovery

4 Stern(e)
5 Voting

2013-12-26 12:02:02

Answers: 9

Flat controlled residential ventilation for 1.2m attic

4.5 Stern(e)
3 Voting

2014-01-01 22:38:36

Answers: 6

Bungalow half 8m² KfW70 without ventilation / basement, Y-Tong

4.5 Stern(e)
5 Voting

2013-12-21 01:16:43

Answers: 12

Experiences with the Euroair 250 Controlled Residential Ventilation

4.5 Stern(e)
4 Voting

2014-01-01 18:01:05

Answers: 1

Condominium with KFW70, unsure regarding ventilation

4.5 Stern(e)
4 Voting

2013-12-29 16:24:40

Answers: 1

Supply and exhaust air of the decentralized ventilation switched - cleaning?

4.5 Stern(e)
5 Voting

2013-12-24 22:52:21

Answers: 8

Decision: Individual room ventilation or central apartment ventilation

4.5 Stern(e)
4 Voting

2013-12-11 11:35:07

Answers: 5

Groundwater heat pump with integrated ventilation and cooling

4 Stern(e)
3 Voting

2013-12-14 17:42:43

Answers: 4

Semi-detached house - Built in 2000 - Is ventilation useful / necessary?

4.5 Stern(e)
5 Voting

2013-12-04 15:54:59

Answers: 3

Fans

4.5 Stern(e)
5 Voting

2013-11-29 09:44:32

Answers: 43

New building as a KfW-55 house with which ventilation system?

5 Stern(e)
5 Voting

2013-10-24 12:19:14

Answers: 2

Positioning of supply and exhaust air nozzles in the interior area

4.5 Stern(e)
4 Voting

2013-11-09 18:32:43

Answers: 11

Ventilation system for a two-family house

4.5 Stern(e)
5 Voting

2013-11-01 19:26:21

Answers: 2

Geothermal heat pump maintenance: what to watch for and how

4.5 Stern(e)
3 Voting

2011-11-27 09:29:09

Answers: 22

2-family house KFW70 heating with air heat pump ventilation and exhaust ventilation

5 Stern(e)
3 Voting

2013-10-25 20:00:08

Answers: 14

Ventilation system with heat recovery - Where to place the ventilation inlets?

4 Stern(e)
3 Voting

2013-10-14 23:21:02

Answers: 2

Air-water heat pump underfloor heating and domestic hot water heat pump separate

4.5 Stern(e)
5 Voting

2013-10-16 01:26:15

Answers: 9

Hybrid heat pump for new single-family house

4 Stern(e)
5 Voting

2013-10-13 17:49:41

Answers: 8

Westaflex 300WAC - loud ventilation noise in a room?

5 Stern(e)
5 Voting

2013-09-25 20:06:29

Answers: 3

Air-water heat pump, which brand, underfloor heating, noises

4.5 Stern(e)
5 Voting

2013-09-23 09:15:51

Answers: 3

Pipes of the controlled residential ventilation system in drywall

4.5 Stern(e)
3 Voting

2013-09-08 23:17:53

Answers: 6

Install the ventilation system outside?

4 Stern(e)
5 Voting

2013-09-02 15:26:25

Answers: 8

New single-family house, gas or heat pump, target KfW55

4.5 Stern(e)
3 Voting

2013-08-15 20:51:00

Answers: 29

Controlled ventilation vs. natural ventilation

4.5 Stern(e)
3 Voting

2012-12-19 17:16:08

Answers: 3

New construction a heat pump two opinions

5 Stern(e)
5 Voting

2013-08-17 17:31:18

Answers: 1

User-independent ventilation system in bathroom / WC or rather not?

4.5 Stern(e)
4 Voting

2013-08-16 10:47:42

Answers: 2

Air-water heat pump indoor installation experiences?

4.5 Stern(e)
4 Voting

2013-08-14 19:49:40

Answers: 5

Is the heat pump air duct relocatable through another room?

4.5 Stern(e)
4 Voting

2013-08-05 20:49:12

Answers: 4

Ventilation system with heat recovery - sense or nonsense?

4.5 Stern(e)
5 Voting

2013-07-22 00:48:10

Answers: 18

Measurement values natural cooling heat pump

4.5 Stern(e)
4 Voting

2012-07-26 13:28:59

Answers: 12

Positioning of the inlets and outlets on the roof

4.5 Stern(e)
5 Voting

2013-07-22 10:01:08

Answers: 1

GAS / SOLAR or GAS / Ventilation + Heat Recovery

5 Stern(e)
3 Voting

2013-04-25 18:20:40

Answers: 20

But no heat pump in a single-family house?

5 Stern(e)
4 Voting

2013-06-17 13:31:44

Answers: 15

Lamp next to pipe for ventilation system

4.5 Stern(e)
5 Voting

2013-06-18 23:03:43

Answers: 5

Comfort ventilation: are these air volumes acceptable?

4 Stern(e)
3 Voting

2013-06-13 09:50:45

Answers: 2

Decentralized Controlled Residential Ventilation + Fireplace Stove

4.5 Stern(e)
4 Voting

2012-11-06 14:50:22

Answers: 2