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Forums
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!
L
Local heating network brine heat pump
4.5 Stern(e)
5 Voting
2020-04-30 09:31:49
Answers
2
G
Gas condensing boiler or heat pump?
4.5 Stern(e)
5 Voting
2020-05-01 17:37:02
Answers
10
A
Air-to-air heat pump, yet radiators?
4.5 Stern(e)
5 Voting
2020-04-25 09:21:38
Answers
11
F
Find geothermal probe again without digging?
4.5 Stern(e)
3 Voting
2020-04-21 20:29:49
Answers
4
A
Air-to-air or air-to-water heat pump?
4.5 Stern(e)
3 Voting
2020-04-07 13:06:09
Answers
34
R
Renew 28-year-old gas heater
4.5 Stern(e)
5 Voting
2020-04-19 13:48:53
Answers
3
O
Operate fresh water with partially very high and low buffer temperatures
4.5 Stern(e)
3 Voting
2020-04-18 14:29:43
Answers
17
U
Use heating oil tank as diesel tank?
4.5 Stern(e)
4 Voting
2020-04-17 13:12:25
Answers
13
L
Living room humidity 30-40%
4 Stern(e)
10 Voting
2019-01-24 13:38:53
Answers
22
R
Recommendation for digital room thermostat for air-to-water heat pump
4.5 Stern(e)
3 Voting
2020-04-15 22:17:09
Answers
16
A
Air/Water Heat Pump Active Cooling
4.5 Stern(e)
6 Voting
2020-04-13 16:54:37
Answers
15
G
Gas fireplace, but hot with heat pump?!
4.5 Stern(e)
4 Voting
2019-09-15 19:54:58
Answers
32
I
Install a fresh air supply for the fireplace into the screed
4.5 Stern(e)
3 Voting
2020-04-06 22:20:58
Answers
2
H
Heating design (brine-water heat pump) experiences / tips
4.5 Stern(e)
5 Voting
2020-03-29 17:40:42
Answers
4
V
Ventilate the winter garden? Which parameters?
4.5 Stern(e)
5 Voting
2020-04-05 20:03:47
Answers
1
I
In which season should the pellet tank be filled completely? Moisture?
4.5 Stern(e)
3 Voting
2020-04-01 09:23:58
Answers
1
H
Heating load calculation 10.3 kW, is a 9.5 kW air-to-water heat pump sufficient?
5 Stern(e)
7 Voting
2020-03-05 22:09:47
Answers
29
A
Air-water heat pump - expansion vessel
4.5 Stern(e)
4 Voting
2020-03-30 23:08:43
Answers
4
H
Heat pump - Heating screed even without an outdoor unit?
4.5 Stern(e)
5 Voting
2020-03-30 22:57:26
Answers
4
U
Underfloor heating + radiator -> two thermostats in one room
4.5 Stern(e)
3 Voting
2020-03-26 20:43:14
Answers
10
W
When does BAFA pay out the funding (air-water heat pump in new construction)?
4.5 Stern(e)
3 Voting
2020-03-26 14:52:45
Answers
10
D
Does it make sense to retrofit an air conditioner?
5 Stern(e)
4 Voting
2020-03-25 18:19:01
Answers
12
L
Leaking underfloor heating?
4.5 Stern(e)
3 Voting
2020-03-22 17:56:40
Answers
6
H
Heat pump on a pedestal or directly on the floor?
4.5 Stern(e)
3 Voting
2020-03-19 20:22:34
Answers
12
W
Wood stove independent of room air?
4.5 Stern(e)
5 Voting
2020-03-19 15:22:03
Answers
6
S
Space requirements heat pump + ventilation
4.5 Stern(e)
5 Voting
2020-03-10 10:54:22
Answers
7
H
Heating offer - what information
4.5 Stern(e)
4 Voting
2020-03-15 07:26:40
Answers
6
W
When are compensators necessary?
4.5 Stern(e)
5 Voting
2020-02-24 20:56:20
Answers
21
A
Air-Water Heat Pump: Ices up, Noisy, Continuous Load?
4.5 Stern(e)
10 Voting
2016-11-29 13:26:23
Answers
33
E
Experience with water-bearing fireplace vs normal burner
4.5 Stern(e)
4 Voting
2020-03-07 19:32:32
Answers
5
O
Old gas heater defective -> need a new one, but which one?!?
4 Stern(e)
10 Voting
2020-02-11 07:34:41
Answers
58
E
Exhaust air heat pump vs. brine/water heat pump in the rental building
4.5 Stern(e)
3 Voting
2020-03-01 16:54:20
Answers
5
I
Incorrect heating installed — problem and consequences?
4 Stern(e)
4 Voting
2020-02-29 17:08:29
Answers
25
U
Underfloor heating - wet system and dry system
4.5 Stern(e)
5 Voting
2020-02-27 09:41:33
Answers
2
P
Price difference ceiling heating/floor heating
4 Stern(e)
5 Voting
2020-02-28 17:06:26
Answers
8
E
Experience reports with pellet heating
4 Stern(e)
6 Voting
2020-01-18 15:42:52
Answers
17
U
Underfloor heating — one room remains cold
4.5 Stern(e)
5 Voting
2020-02-28 21:36:18
Answers
4
A
Air-Water Heat Pump Elco Aerotop Split 09 M-R 250
4.5 Stern(e)
4 Voting
2020-02-25 20:06:12
Answers
0
T
Trench collectors
NAN Stern(e)
0 Voting
2020-02-18 08:26:58
Answers
2
F
Freshwater station and buffer tank: technically better choice?
5 Stern(e)
5 Voting
2020-02-23 08:16:56
Answers
24
E
Experience Waterkotte Model / Type Basic Line Split 5015.5
4.5 Stern(e)
4 Voting
2020-02-24 17:21:51
Answers
0
Z
Zero consumption regulation for combined heat and power plant - Costs?
4.5 Stern(e)
4 Voting
2020-02-18 10:10:40
Answers
3
D
Discoloration of heating water (only the supply line)
4.5 Stern(e)
3 Voting
2020-02-18 06:17:13
Answers
20
E
eligible greywater storage ErP Class A
5 Stern(e)
4 Voting
2020-02-14 12:52:20
Answers
2
O
Outdoor air-to-water heat pump on the house or on the ground
4.5 Stern(e)
5 Voting
2020-02-15 10:32:55
Answers
6
E
Evaluation of local heating tariff, alternatives?
4.5 Stern(e)
4 Voting
2020-02-13 11:50:56
Answers
1
A
Air-water heat pump Dimplex System M with inverter
4 Stern(e)
5 Voting
2020-02-10 22:34:20
Answers
0
G
Geothermal company: Where / how to find
4.5 Stern(e)
4 Voting
2020-02-07 12:30:00
Answers
1
C
Costs for well or ground probe (and what advantages)
4.5 Stern(e)
6 Voting
2020-01-07 11:27:42
Answers
8
R
Room air insanely dry despite the heating being turned off
NAN Stern(e)
0 Voting
2020-02-06 10:29:28
Answers
4
L
LW Heat Pump Alpha Innotec LWDV with 12KW
4 Stern(e)
11 Voting
2020-01-24 08:38:20
Answers
26
H
Heat pump consumption 2019 on a monthly basis
4 Stern(e)
29 Voting
2019-11-27 10:44:36
Answers
112
G
Good combustion/emission values for a 25 kW pellet boiler?
4.5 Stern(e)
5 Voting
2020-02-03 16:27:52
Answers
0
H
Heating system new construction single-family house air-air / air-water?
4 Stern(e)
7 Voting
2020-01-14 15:17:55
Answers
20
C
Cooling with air-water heat pump, condensation monitor and transformer needed
4.5 Stern(e)
3 Voting
2020-01-22 13:22:45
Answers
6
P
Properly setting the air-to-water heat pump with underfloor heating
4 Stern(e)
11 Voting
2019-12-15 16:52:05
Answers
54
W
Water damage heating questions...
4.5 Stern(e)
3 Voting
2020-01-24 22:57:29
Answers
2
T
Towel radiator for air-water heat pump
4 Stern(e)
12 Voting
2019-04-15 11:31:19
Answers
22
S
Suspended ceiling and fire protection?
4.5 Stern(e)
4 Voting
2020-01-22 20:58:16
Answers
2
W
What is wrong with my heater?
4 Stern(e)
6 Voting
2020-01-20 17:44:51
Answers
10
S
SoleWasser ground source heat pump with ground baskets
4.5 Stern(e)
4 Voting
2020-01-21 22:05:02
Answers
4
K
Kaminofen Austroflamm Uno Extra experiences
5 Stern(e)
5 Voting
2019-12-13 12:02:40
Answers
4
G
Gas-powered fuel cell
4 Stern(e)
6 Voting
2020-01-20 10:48:07
Answers
11
N
Noises from a combined heat and power plant
4 Stern(e)
6 Voting
2020-01-18 20:19:38
Answers
4
2
2 identical systems. 2 different buffer temperatures! Which one?
5 Stern(e)
5 Voting
2020-01-18 13:22:49
Answers
0
H
How important is the cleaning of the combustion chamber in a pellet system?
4.5 Stern(e)
5 Voting
2020-01-16 11:16:52
Answers
0
A
Air source heat pump & chimney directly next to each other
5 Stern(e)
4 Voting
2020-01-15 20:00:57
Answers
3
P
Pellets with solar thermal or photovoltaic?
4.5 Stern(e)
5 Voting
2020-01-15 09:02:19
Answers
37
K
KFW, heating demand, heat pumps, consumption
4.5 Stern(e)
3 Voting
2020-01-14 13:34:03
Answers
7
A
Additional costs for wall heating instead of underfloor heating
4 Stern(e)
4 Voting
2020-01-13 10:28:53
Answers
22
W
Water-bearing fireplace stove in new construction - yes or no?
4 Stern(e)
5 Voting
2020-01-12 11:06:28
Answers
16
W
Which heating system (with hot water) would make sense in a tiny house?
5 Stern(e)
4 Voting
2020-01-05 19:19:11
Answers
7
H
How do temperature fluctuations occur in fresh water?
4 Stern(e)
6 Voting
2020-01-02 12:23:29
Answers
21
G
Gas heating + photovoltaics possible without proof
4.5 Stern(e)
6 Voting
2019-12-12 16:30:53
Answers
15
G
Gas vs. Air-Water Heat Pump
4.5 Stern(e)
4 Voting
2019-12-29 16:34:21
Answers
34
W
What power is required for our fireplace?
4.5 Stern(e)
3 Voting
2020-01-04 16:21:25
Answers
10
W
What is more economical? Loading the buffer more often or reheating it?
4 Stern(e)
4 Voting
2020-01-02 11:31:02
Answers
7
W
With which boiler buffer settings should the system be operated?
4.5 Stern(e)
3 Voting
2019-12-29 18:35:28
Answers
0
A
Air-water heat pump with central ventilation system
4.5 Stern(e)
8 Voting
2019-12-25 14:37:32
Answers
4
A
Air heat pump and heating circulation pump VS warm water heat pump
4.5 Stern(e)
4 Voting
2019-12-19 16:56:33
Answers
4
E
Experiences with air-to-water heat pump from Alpha innotec alira lwd series?
5 Stern(e)
4 Voting
2017-08-22 23:49:47
Answers
3
U
Underfloor heating in the children's room? Some rooms planned without underfloor heating? Air-to-water heat pump removed?
4 Stern(e)
15 Voting
2019-12-18 21:20:06
Answers
48
D
Decision KfW55 vs. KfW40 plus
4.5 Stern(e)
8 Voting
2019-12-01 23:44:37
Answers
22
I
Is humidity in new buildings harmful to health?
4.5 Stern(e)
6 Voting
2019-12-01 23:21:35
Answers
9
O
Optimization of the installation location of an air-to-water heat pump
4 Stern(e)
7 Voting
2019-12-12 12:10:59
Answers
8
D
Determine stroke control valves for underfloor heating
4.5 Stern(e)
5 Voting
2019-12-11 22:10:12
Answers
1
G
Gas heating or heat pump air (Mitsubishi?) or groundwater
5 Stern(e)
6 Voting
2019-12-06 09:58:24
Answers
16
C
Connecting control strip to thermostat
4.5 Stern(e)
4 Voting
2019-12-10 14:09:44
Answers
0
H
Heating in the kitchen "necessary"?
4.5 Stern(e)
5 Voting
2019-12-09 07:14:28
Answers
35
P
Planning of a particularly energy-efficient house
4.5 Stern(e)
6 Voting
2019-12-06 18:30:40
Answers
36
P
Problem heat pump - supply cold, no hot water: system limit
4.5 Stern(e)
5 Voting
2019-12-09 10:08:36
Answers
4
H
Heat pump - Domestic hot water preparation
4.5 Stern(e)
7 Voting
2019-11-28 07:41:58
Answers
14
W
Wood-burning stove in new construction - What to pay attention to?
4 Stern(e)
5 Voting
2019-12-01 22:42:01
Answers
23
R
Rough construction measurement for the door to the HAR
4 Stern(e)
6 Voting
2019-11-29 17:29:48
Answers
9
F
Fuel cell or operating costs, photovoltaics and solar thermal?
4.5 Stern(e)
4 Voting
2019-06-05 08:51:40
Answers
21
H
Heating offer comparison - Please share your experiences
4 Stern(e)
17 Voting
2019-09-11 10:09:00
Answers
49
E
Experience KFW 55 House LWZ 504 Leistung
4.5 Stern(e)
5 Voting
2019-11-22 00:18:23
Answers
5
A
Air-Water Heat Pump Viessmann Vitocol 200A
4.5 Stern(e)
4 Voting
2019-11-07 19:57:24
Answers
1
F
Feedback on heat pump / offer requested!
4.5 Stern(e)
10 Voting
2019-08-30 11:53:55
Answers
46
I
Is the district heating consumption at KW 55 house too high?
4 Stern(e)
11 Voting
2019-11-21 15:55:18
Answers
19
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