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Building technology
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!
T
The temperature in the rooms does not meet our needs
4.5 Stern(e)
7 Voting
2024-03-03 21:03:16
Answers
19
I
Is decentralized ventilation with cross-counterflow heat exchanger still relevant?
4.5 Stern(e)
5 Voting
2024-03-11 11:21:28
Answers
3
I
Is a split air conditioner sufficient for 3 rooms?
5 Stern(e)
4 Voting
2024-03-06 10:24:00
Answers
5
I
Is the ventilation system contaminated with germs?
4.5 Stern(e)
3 Voting
2024-02-27 18:25:28
Answers
9
F
Freshwater station with strongly fluctuating hot water temperature
4 Stern(e)
5 Voting
2024-01-15 00:14:24
Answers
3
I
Installing underfloor heating in an apartment (from the 60s). Good idea?
4.5 Stern(e)
5 Voting
2024-02-20 09:24:58
Answers
5
M
Make HKV adjustable and keep an eye on power consumption
4.5 Stern(e)
5 Voting
2024-02-12 20:27:08
Answers
9
I
Is ceiling heating possible as an acoustic ceiling?
4.5 Stern(e)
4 Voting
2024-02-04 18:21:40
Answers
13
U
Use the ERR cable for other purposes
5 Stern(e)
5 Voting
2024-02-02 16:03:09
Answers
13
C
Cold local heating network new development area connection line
5 Stern(e)
4 Voting
2024-01-26 10:27:54
Answers
3
H
Heating surfaces for a room with significantly increased heating load
4.5 Stern(e)
5 Voting
2024-01-27 09:17:01
Answers
12
F
Flush-mounted or plasterable access doors for chimney pipes
4.5 Stern(e)
4 Voting
2024-01-25 12:45:58
Answers
0
C
Complement gas heating with wood gasifiers, water-bearing fireplaces, and solar energy
4.5 Stern(e)
5 Voting
2024-01-20 13:08:06
Answers
13
R
Retrofit underfloor heating in the bathroom during renovation
4.5 Stern(e)
3 Voting
2024-01-19 15:20:10
Answers
2
V
Ventilation combined with underfloor heating in new buildings?
4.5 Stern(e)
6 Voting
2024-01-16 22:30:42
Answers
2
A
Adjust underfloor heating - defective?
4.5 Stern(e)
6 Voting
2024-01-12 17:54:00
Answers
13
I
IDM iPump 2-8 Optimization / Adjustment
5 Stern(e)
5 Voting
2024-01-12 19:41:34
Answers
19
Q
Questions about hydraulic balancing
4.5 Stern(e)
4 Voting
2024-01-11 09:51:03
Answers
4
H
Have underfloor heating installed beneath existing floorboards
4.5 Stern(e)
4 Voting
2023-12-30 13:00:24
Answers
4
C
COB-20 coughs/bangs/puffs after maintenance
4 Stern(e)
5 Voting
2023-12-31 13:10:39
Answers
2
C
Cap for dismantled radiator
4.5 Stern(e)
4 Voting
2023-12-27 15:12:46
Answers
5
R
Reduce/optimize the consumption of a ground source heat pump (GSHP)?
4.5 Stern(e)
5 Voting
2023-12-22 08:08:29
Answers
1
H
Heating the construction site in winter
4.5 Stern(e)
5 Voting
2023-12-08 21:37:33
Answers
4
H
Heating solution for attic conversion
4.5 Stern(e)
4 Voting
2023-12-09 14:58:59
Answers
1
I
Is the prohibition of other heat sources in district heating lawful?
4.5 Stern(e)
5 Voting
2023-12-06 14:42:04
Answers
11
W
Which heating system is suitable for a hostel in Salzburg?
4 Stern(e)
6 Voting
2023-12-07 11:21:12
Answers
2
B
Buderus Logamax heating problems
4 Stern(e)
3 Voting
2023-12-06 16:31:23
Answers
0
C
Can a new heating system cause noise in the apartment?
4 Stern(e)
5 Voting
2023-12-02 22:32:43
Answers
7
N
Nibe F750 10 years old and defective
4.5 Stern(e)
6 Voting
2023-11-30 10:07:25
Answers
1
P
Pellet stove off - water cold - emergency system?
4.5 Stern(e)
4 Voting
2023-11-29 14:46:17
Answers
1
S
Split air conditioner ON or OFF during ventilation
5 Stern(e)
5 Voting
2023-11-28 17:13:08
Answers
1
S
Setting flow temperature for gas heating in old building
4.5 Stern(e)
3 Voting
2023-11-20 16:03:11
Answers
4
M
Multi split air conditioner in a single-family house
4.5 Stern(e)
5 Voting
2023-11-22 14:28:38
Answers
5
T
Turn on the underfloor heating at the controller
5 Stern(e)
5 Voting
2023-11-12 22:53:37
Answers
21
H
Hydraulic short circuit? Return flow of radiator upstairs warmer than supply flow
4.5 Stern(e)
4 Voting
2023-11-18 18:45:59
Answers
8
A
Achievable minimum temperature according to KfW55 standard
5 Stern(e)
4 Voting
2023-11-17 10:14:45
Answers
11
E
Experiences with local heating/district heating in new buildings in connection with photovoltaics
5 Stern(e)
5 Voting
2023-11-10 20:08:44
Answers
0
U
Underfloor heating with individual room control very bad?
4.5 Stern(e)
3 Voting
2023-11-10 15:18:17
Answers
1
V
Very high humidity in all rooms
4.5 Stern(e)
7 Voting
2023-11-03 20:46:22
Answers
50
L
Looking for a ventilation device to reduce humidity in winter
5 Stern(e)
5 Voting
2023-11-02 14:04:59
Answers
6
D
Definition "Outside temperature" - average over several days?
4.5 Stern(e)
5 Voting
2023-10-27 10:53:01
Answers
3
H
Heating concept for new buildings - heat pump vs. masonry heater?
4.5 Stern(e)
7 Voting
2023-10-23 21:39:19
Answers
18
C
Conversion of electric heating - cost estimation?
4.5 Stern(e)
7 Voting
2023-10-26 10:04:34
Answers
10
C
Check circulation pump... What needs to be shut off?
5 Stern(e)
5 Voting
2023-10-24 17:37:37
Answers
2
A
Air conditioning outdoor unit on wooden facade?
4.5 Stern(e)
5 Voting
2023-06-16 02:58:58
Answers
4
E
Experiences with infrared heaters
5 Stern(e)
4 Voting
2022-02-10 11:10:04
Answers
45
E
Electric surface heating (Thermoheld) in KFW 40 bungalow with 80 sqm
5 Stern(e)
6 Voting
2023-10-01 13:42:04
Answers
20
D
Draining climate split condensate in KfW55 new building
4.5 Stern(e)
5 Voting
2023-10-20 16:49:33
Answers
0
S
System diagram with buffer and solar thermal
4.5 Stern(e)
5 Voting
2023-10-11 22:16:16
Answers
1
C
Controlled Residential Ventilation Vallox ValloPlus 350MV - Experiences, Manual?
4.5 Stern(e)
3 Voting
2023-10-08 08:12:55
Answers
10
H
Heat pump capacity and buffer tank size(s) for new build single-family house
4.5 Stern(e)
6 Voting
2023-09-25 20:45:40
Answers
13
M
Mounting of the controlled residential ventilation ducts in the flat distributor
4.5 Stern(e)
4 Voting
2023-09-26 15:17:08
Answers
16
C
Cooling via underfloor heating with brine heat pump
4.5 Stern(e)
4 Voting
2015-04-30 11:27:47
Answers
45
B
Basic info radiator replacement old building
4.5 Stern(e)
4 Voting
2023-07-12 13:57:10
Answers
14
I
Is the size of the house connection room sufficient?
4.5 Stern(e)
4 Voting
2023-09-12 20:58:57
Answers
16
A
Adapter for black pipe/steel pipe
5 Stern(e)
5 Voting
2023-09-11 13:31:32
Answers
0
W
Why does the compressor of the air-water heat pump operate despite solar thermal (temperature 140°C)?
4.5 Stern(e)
3 Voting
2023-09-09 14:59:38
Answers
1
D
Decommission Spartec heat pump
5 Stern(e)
5 Voting
2023-09-09 11:00:11
Answers
2
S
Sealing of stainless steel chimney outlet
4.5 Stern(e)
3 Voting
2023-09-07 07:59:45
Answers
0
E
Experience with KFW55 solid + gas + 5 sqm solar
5 Stern(e)
8 Voting
2017-05-01 20:11:50
Answers
37
U
Use the infrared heater in the kitchen also as a "splash guard"
4.5 Stern(e)
5 Voting
2023-08-16 16:15:33
Answers
0
C
Combination of split air conditioner, gas, solar
4.5 Stern(e)
6 Voting
2022-05-22 20:10:48
Answers
12
D
Different Heating Concepts Compared
5 Stern(e)
10 Voting
2023-08-03 22:25:47
Answers
66
F
Floor structure in water-based dry construction underfloor heating
4.5 Stern(e)
4 Voting
2023-07-31 09:43:08
Answers
0
I
Is it recommended to replace heating pipes in a solar house?
4.5 Stern(e)
3 Voting
2023-07-18 20:50:28
Answers
0
W
Which storage/drinking water heating is used in district heating?
4.5 Stern(e)
3 Voting
2023-07-15 08:18:44
Answers
9
I
Is an air heat pump usable for basement cooling?
4.5 Stern(e)
4 Voting
2023-07-14 17:47:56
Answers
2
H
Heating for bungalow with 2 residential units
4.5 Stern(e)
3 Voting
2023-06-30 11:34:13
Answers
11
R
Replacement of oil heating system with heat pump
4 Stern(e)
4 Voting
2023-06-30 21:00:53
Answers
0
C
Correctly connect the external air supply to the wood-burning stove
5 Stern(e)
4 Voting
2023-06-28 14:14:23
Answers
7
C
Controlled residential ventilation planning / installation as own work
4 Stern(e)
5 Voting
2023-06-28 12:57:36
Answers
4
H
Heat pump, water storage tank, instantaneous water heater, wfK, underfloor heating, heating and cooling
4.5 Stern(e)
5 Voting
2023-06-20 14:37:57
Answers
12
S
Single room ventilation and cooling
5 Stern(e)
6 Voting
2023-06-26 10:55:04
Answers
4
I
Ice storage in prefabricated house (new construction) - provider
4.5 Stern(e)
5 Voting
2023-06-22 08:04:03
Answers
19
C
Can a multisplit outdoor unit be hung on roof beams?
4.5 Stern(e)
4 Voting
2023-06-11 22:29:15
Answers
2
R
Replacement heating pump / high-efficiency gas heating pump
5 Stern(e)
5 Voting
2023-06-14 13:31:52
Answers
6
M
Meaningful integration of underfloor heating/RTLs
4.5 Stern(e)
3 Voting
2023-06-19 20:15:04
Answers
1
H
Heat pump and household electricity all through one meter
5 Stern(e)
4 Voting
2023-06-08 12:11:08
Answers
25
A
Air conditioning new building experiences?
4.5 Stern(e)
7 Voting
2022-06-11 11:07:35
Answers
52
P
Pellets storage in a self-built pellet silo
4.5 Stern(e)
6 Voting
2023-06-07 18:14:36
Answers
8
E
Experience with retrofitted underfloor heating in an old building
4 Stern(e)
4 Voting
2023-06-07 09:15:20
Answers
4
U
Underfloor heating recommendation regarding provider
5 Stern(e)
4 Voting
2023-05-30 22:01:30
Answers
0
I
Installation of a gas heating system in new construction 2023/2024
5 Stern(e)
18 Voting
2023-04-11 14:47:10
Answers
337
U
Underfloor heating - heating circuit remains too cold.
4.5 Stern(e)
6 Voting
2023-05-17 20:03:33
Answers
4
H
How did you install your heat pumps?
4.5 Stern(e)
4 Voting
2021-06-29 19:37:36
Answers
15
M
Mandatory heating rental in new buildings - is that possible?
5 Stern(e)
6 Voting
2022-11-17 11:23:51
Answers
40
P
Placement of air-water heat pump outdoor unit and controlled residential ventilation ducts
5 Stern(e)
5 Voting
2023-05-08 16:30:48
Answers
2
C
Connection of heat pump to heating circuit distributor
4.5 Stern(e)
4 Voting
2023-05-03 10:34:48
Answers
12
I
Install gas heating, or switch to a heat pump?
4 Stern(e)
5 Voting
2023-04-30 08:00:28
Answers
6
W
What are the pellet prices in Germany in 2023?
4.5 Stern(e)
5 Voting
2023-04-28 13:31:03
Answers
1
I
Is an air conditioner necessary in a south-facing location?
5 Stern(e)
6 Voting
2020-03-04 12:12:04
Answers
77
R
Read the amount of heat generated by EcoAir622M + EcoZenith555 Pro
4.5 Stern(e)
4 Voting
2023-04-25 11:08:54
Answers
0
R
Radiators dismantled. Uncertainty about valves + Where to refill water?
4.5 Stern(e)
5 Voting
2023-04-24 22:01:26
Answers
0
B
Black flow pipes in underfloor heating?
4.5 Stern(e)
5 Voting
2023-04-24 10:34:56
Answers
2
U
Use ventilated façade as an additional heating?
4.5 Stern(e)
3 Voting
2023-04-17 13:44:51
Answers
5
C
Combination of Daikin Altherma ECH2O with water-bearing fireplace
4.5 Stern(e)
3 Voting
2023-04-19 09:13:12
Answers
1
T
Temperature in the heating room (air source heat pump)
4.5 Stern(e)
5 Voting
2023-04-17 00:08:44
Answers
3
I
Interpretation of new heating and hot water system for a 1970 holiday home
5 Stern(e)
5 Voting
2023-03-31 21:23:37
Answers
13
L
Low humidity in the new building?
5 Stern(e)
4 Voting
2023-04-11 20:41:50
Answers
2
T
Terraced house built in 2002, energy rating B, underfloor heating - heating replacement
4 Stern(e)
5 Voting
2023-04-09 23:43:04
Answers
3
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