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Heating / Air Conditioning

Learn how to find the optimal heating and cooling for your home – for comfortable temperatures and more energy efficiency in everyday life!

Sole-water heat pump with buffer tank and underfloor heating

4.5 Stern(e)
7 Voting

2020-12-31 18:55:04

Answers: 4

Danfoss underfloor heating too warm

4.5 Stern(e)
3 Voting

2020-12-30 21:00:51

Answers: 15

Recommendation digital heating thermostat

5 Stern(e)
8 Voting

2020-12-27 21:29:07

Answers: 79

Installing underfloor heating by milling

4.5 Stern(e)
5 Voting

2020-12-27 17:38:12

Answers: 3

New pump is causing problems, hissing, and the room is not heating properly

5 Stern(e)
4 Voting

2020-12-26 14:34:57

Answers: 1

EcoAir 614M heat pump from Giersch experiences

5 Stern(e)
3 Voting

2020-12-18 16:26:57

Answers: 7

The district heating control unit switches too frequently.

5 Stern(e)
4 Voting

2020-12-15 18:04:20

Answers: 1

Sole heat pump mainly as a cooling solution - does that make sense?

4.5 Stern(e)
5 Voting

2020-12-14 19:26:28

Answers: 6

Ice formation brine pipe heat pump

4.5 Stern(e)
5 Voting

2020-09-29 10:28:17

Answers: 78

Underfloor heating heat load calculation - simply explained?

5 Stern(e)
6 Voting

2020-12-03 13:36:24

Answers: 26

Heat pump Knv or IDM air heat pump

4.5 Stern(e)
6 Voting

2020-10-26 19:18:32

Answers: 13

Offer from the heating installer surprising

5 Stern(e)
5 Voting

2020-12-08 19:08:54

Answers: 7

Thermal balancing - Initial values taken for adjustment

4.5 Stern(e)
8 Voting

2020-12-03 15:04:45

Answers: 33

Underfloor heating not adjustable

4 Stern(e)
5 Voting

2020-12-05 19:23:12

Answers: 8

New construction KFW55 house - heating design, different statements

4.5 Stern(e)
7 Voting

2020-12-05 13:15:13

Answers: 22

Gas with solar thermal? Or heat pump with photovoltaics? Consultation

4 Stern(e)
25 Voting

2020-02-05 08:57:29

Answers: 149

Heat pump heating setting

4.5 Stern(e)
5 Voting

2020-12-04 12:51:45

Answers: 2

Single-pipe heating in niches. Relocate, insulate, or renew?

4.5 Stern(e)
4 Voting

2020-12-02 10:00:14

Answers: 9

Gas pedal and parking brake of the heater: Explanation correct?

4.5 Stern(e)
11 Voting

2020-11-22 15:05:51

Answers: 60

"Bloated" stainless steel radiator

5 Stern(e)
4 Voting

2020-11-29 16:41:46

Answers: 17

How do room thermostats work with an FHB?

4.5 Stern(e)
6 Voting

2020-11-27 11:59:13

Answers: 9

Freshwater station causes temperature fluctuations

5 Stern(e)
6 Voting

2020-11-24 18:15:30

Answers: 8

Heating load calculation & layout plan DIN: Is a new calculation necessary?

5 Stern(e)
6 Voting

2020-11-02 11:15:29

Answers: 41

Which gas condensing boiler with domestic hot water

5 Stern(e)
4 Voting

2020-10-18 11:40:51

Answers: 6

Hybrid Gas/Air-Water Heat Pump or Gas with Power-to-Heat

4.5 Stern(e)
6 Voting

2020-11-19 21:58:15

Answers: 14

Air-water heat pump flow temperatures

5 Stern(e)
7 Voting

2020-11-17 18:10:53

Answers: 34

Integral device Stibel Eltron LWZ 504 with central supply air

4 Stern(e)
13 Voting

2014-10-19 20:20:41

Answers: 82

Parking in front of an air-to-water heat pump - problems?

5 Stern(e)
5 Voting

2020-11-14 07:59:08

Answers: 4

Technical comparison of air-to-water heat pump

4.5 Stern(e)
7 Voting

2020-11-02 07:37:26

Answers: 25

Which air heat pump meets the requirements of the development plan?

4.5 Stern(e)
6 Voting

2020-11-07 20:22:48

Answers: 9

Controlled residential ventilation vs exhaust ventilation with heat recovery in KFW 40 construction

5 Stern(e)
5 Voting

2020-11-07 19:28:42

Answers: 2

3 heating loops in the bathroom, 1 not working, what to do?

4.5 Stern(e)
6 Voting

2018-12-06 07:30:13

Answers: 33

Calculate the annual performance factor (Jahresarbeitszahl) based on electricity consumption?

4.5 Stern(e)
5 Voting

2020-11-03 13:09:09

Answers: 8

Heating control district heating - either too warm or off

4 Stern(e)
5 Voting

2020-10-21 17:08:32

Answers: 2

What do you think about the local heating offer?

4 Stern(e)
11 Voting

2020-01-20 23:33:38

Answers: 23

Groundwater heat pump - disadvantages?

4 Stern(e)
5 Voting

2018-05-26 09:56:28

Answers: 19

Which oven pipe do I need?

4.5 Stern(e)
4 Voting

2020-09-28 19:12:54

Answers: 7

Air heat pump and condensate pump on the same circuit?

4.5 Stern(e)
3 Voting

2020-10-22 15:47:35

Answers: 3

Gas heating capacity selection 20kW instead of 14kW

5 Stern(e)
7 Voting

2020-10-08 18:43:24

Answers: 29

Underfloor heating with wall heating in a wood-clay house

4 Stern(e)
5 Voting

2020-07-22 09:49:39

Answers: 8

CTA Aeroheat heat pump settings for improvement

4.5 Stern(e)
4 Voting

2020-10-15 11:59:56

Answers: 17

Thermal balancing of underfloor heating - How to proceed?

4.5 Stern(e)
6 Voting

2020-10-14 12:03:11

Answers: 22

Is an air-to-water heat pump economical for this house?

4.5 Stern(e)
4 Voting

2020-10-15 12:48:16

Answers: 6

Experiences with "Thermisto Swift" / Underfloor heating for retrofitting

4.5 Stern(e)
7 Voting

2020-02-23 20:21:05

Answers: 7

Climate condensate water into rainwater downpipe?

4.5 Stern(e)
5 Voting

2020-10-10 22:12:26

Answers: 7

Upgrade underfloor heating with actuators and wireless receivers

4.5 Stern(e)
5 Voting

2020-10-01 11:58:26

Answers: 33

Surcharge for cooling function of air-water heat pump?

4.5 Stern(e)
5 Voting

2020-10-07 22:08:03

Answers: 22

Panorama 3-glass fireplace stove from whom?

4.5 Stern(e)
4 Voting

2020-10-06 09:12:54

Answers: 6

The underfloor heating on the first floor is no longer working

4.5 Stern(e)
7 Voting

2020-09-29 11:02:34

Answers: 32

Air-to-water heat pump single-family house with basement - 150m² living area

4.5 Stern(e)
5 Voting

2020-09-28 09:52:58

Answers: 19

Electric towel heater instead of proposed wall heating

4.5 Stern(e)
3 Voting

2020-10-04 19:43:15

Answers: 6

Type of heating for a new 3-family house with approximately 350m² living space

4.5 Stern(e)
4 Voting

2020-09-29 16:36:12

Answers: 5

Sole heat pump with ground collectors in water protection area III

4.5 Stern(e)
4 Voting

2020-09-29 23:22:10

Answers: 3

Is an additional heater recommended in the bathroom with underfloor heating?

4.5 Stern(e)
6 Voting

2013-07-30 13:22:47

Answers: 71

Towel radiator with underfloor heating - does it get warm?

5 Stern(e)
5 Voting

2020-09-21 20:26:16

Answers: 29

Heating replacement in old buildings - gas or air heat pump

4.5 Stern(e)
3 Voting

2020-09-27 07:37:36

Answers: 19

Oil heating system approximately 25 years old, storage defective

4 Stern(e)
4 Voting

2020-07-26 09:01:10

Answers: 15

Is a hot water storage tank with an integrated heat pump sensible?

4.5 Stern(e)
5 Voting

2020-09-25 12:46:24

Answers: 1

Towel wall heating with heat pump with low return temperature (30 °C)

5 Stern(e)
4 Voting

2020-08-03 10:23:10

Answers: 15

Alternative to Proxon air-to-air heat pump?

5 Stern(e)
4 Voting

2019-08-12 16:21:01

Answers: 28

Assessment of base price for block heating power plant

4.5 Stern(e)
3 Voting

2020-09-17 10:31:56

Answers: 1

Installation location of air-to-water heat pump at a semi-detached house - too close to the neighbor?

4.5 Stern(e)
4 Voting

2020-09-09 10:15:40

Answers: 16

Assessment of previous consumption

4.5 Stern(e)
3 Voting

2020-09-16 08:13:31

Answers: 6

Which heating system is suitable for a room temperature of 23 °C?

4.5 Stern(e)
5 Voting

2020-09-14 13:46:15

Answers: 22

Experiences with central exhaust system without heat recovery

4.5 Stern(e)
5 Voting

2018-01-13 19:26:33

Answers: 30

Active cooling without individual room control

4.5 Stern(e)
3 Voting

2020-09-02 12:43:31

Answers: 12

Tips for radiators

4.5 Stern(e)
3 Voting

2020-09-07 12:01:15

Answers: 3

House built in 1914 is to get a new heating system

4.5 Stern(e)
6 Voting

2020-09-03 14:16:50

Answers: 10

Additional heating support from solar/fireplace

4.5 Stern(e)
3 Voting

2020-08-27 10:00:40

Answers: 12

Natural Cooling / NC-Box Experiences

5 Stern(e)
4 Voting

2020-03-29 17:49:29

Answers: 20

Odor from underfloor heating manifold

4 Stern(e)
5 Voting

2020-08-19 10:58:19

Answers: 3

How to tell if underfloor heating is running - ERR still without thermostat cover

4.5 Stern(e)
3 Voting

2020-07-15 10:41:00

Answers: 50

Good brine-water heat pump and controlled residential ventilation combination

5 Stern(e)
5 Voting

2020-08-07 06:03:43

Answers: 6

Exotic combination: wood pellets + exhaust air heat pump? [fr]Combinaison exotique : granulés de bois + pompe à chaleur à air évacué ?[/fr] [hi]अजीब संयोजन: लकड़ी के पेललेट + निकासी वायु हीट पंप? [in]Kombinasi eksotik: pelet kayu + pompa panas udara buang? [zh]异国组合：木质颗粒 + 排气热泵？[/zh] [ru]Экзотическая комбинация: древесные пеллеты + вытяжной тепловой насос? [es]¿Combinación exótica: pellets de madera + bomba de calor de aire de escape?

4.5 Stern(e)
4 Voting

2020-07-31 21:44:17

Answers: 28

Steibel Eltron LWZ 504 in new construction

4.5 Stern(e)
3 Voting

2018-07-14 11:20:58

Answers: 14

Gas boiler in the attic or in the utility room on the ground floor?

4.5 Stern(e)
5 Voting

2017-02-04 08:44:17

Answers: 10

Air-to-water heat pump new build - single-family house with basement - model?

4 Stern(e)
5 Voting

2020-07-20 12:01:26

Answers: 16

Installation of ESBE VAT320/VAT322 Domestic Water Mixing Valve

4 Stern(e)
3 Voting

2020-07-24 12:59:04

Answers: 1

New single-family house with liquefied petroleum gas - also possible without photovoltaics or solar?

4.5 Stern(e)
3 Voting

2020-07-16 19:07:18

Answers: 24

Room thermostat / individual room control for underfloor heating next to the door?

4.5 Stern(e)
5 Voting

2020-07-16 11:32:38

Answers: 7

What is the maximum screed thickness for underfloor heating?

4.5 Stern(e)
10 Voting

2020-02-12 14:46:36

Answers: 8

Preparations for central air conditioning in the new building

5 Stern(e)
4 Voting

2020-07-14 09:41:48

Answers: 13

Water temperature in 300 L tank - air-to-water heat pump with underfloor heating, photovoltaic system, and controlled residential ventilation with heat recovery (WR)

5 Stern(e)
4 Voting

2020-07-13 14:15:38

Answers: 5

Heat pump & central residential ventilation

5 Stern(e)
4 Voting

2020-07-12 18:58:27

Answers: 21

Renewal of heating system in old building, which system?

4.5 Stern(e)
6 Voting

2020-05-04 14:51:44

Answers: 49

Underfloor heating Schlüter Bekotec Therm or classic experiences?

4 Stern(e)
4 Voting

2020-07-11 10:25:51

Answers: 3

LWZ 8 CS Premium combi made of air-water heat pump, controlled residential ventilation and hot water storage tank

4.5 Stern(e)
3 Voting

2020-07-06 20:56:11

Answers: 15

Ceiling heating with cooling function

5 Stern(e)
4 Voting

2020-07-04 11:33:21

Answers: 8

Heat quantity meter necessary on every floor

4 Stern(e)
3 Voting

2020-05-29 10:48:41

Answers: 10

Which heating pipes are used nowadays?

4 Stern(e)
5 Voting

2020-06-11 18:16:57

Answers: 19

Bafa funding - heating deviates from the application

5 Stern(e)
3 Voting

2020-06-22 14:06:17

Answers: 8

Copper pipe gas line with bend, OK?

4 Stern(e)
3 Voting

2020-06-29 21:14:53

Answers: 11

Looking for an affordable chimney system

5 Stern(e)
5 Voting

2020-04-24 22:31:25

Answers: 5

Hygiene storage tank or regular hot water storage tank?

4.5 Stern(e)
3 Voting

2020-06-27 02:08:42

Answers: 2

Which heating/cooling technology is the most sensible?

5 Stern(e)
4 Voting

2020-06-25 12:35:13

Answers: 17

Experiences with the ring trench collector in the Bavarian region?

4.5 Stern(e)
4 Voting

2020-06-22 21:46:54

Answers: 10

Air-water heat pump: additional costs for eligible system justified

4.5 Stern(e)
5 Voting

2020-06-22 10:41:05

Answers: 9

Underfloor heating plus wood stove, is it sensible?

5 Stern(e)
4 Voting

2020-06-18 22:46:04

Answers: 11

ERR, KNX, heat pump and controlled residential ventilation = what do you say?

4.5 Stern(e)
5 Voting

2020-06-17 16:23:35

Answers: 10

Old building with room ventilation and "cooling"?

4 Stern(e)
3 Voting

2020-06-13 19:54:16

Answers: 6