ᐅ Heating / HVAC

Learn how to choose the optimal heating and cooling systems for your home – ensuring comfortable temperatures and greater energy efficiency in everyday living!

Is my central mechanical ventilation system working correctly?

B

bernie•26 Jul 2019 09:55

Answers: 8

Mycraft • 26 Jul 2019 17:41

Geothermal energy or air-source heat pumps, any experiences?

J

j1985•21 Jul 2019 22:22

Answers: 7

L

lesmue79 • 23 Jul 2019 11:26

Underfloor Heating Spacing, Missing Sections, and Bathtub Installation

M4rvin•23 Jun 2019 14:39

Answers: 26

R

Reini1234 • 22 Jul 2019 14:07

Sharp Odor from Heating Manifold

S

Stubai83•16 Jul 2019 11:26

Answers: 7

S

Stubai83 • 19 Jul 2019 09:20

It takes a long time for hot water to arrive.

N

Nadini89•17 Jun 2019 20:48

Answers: 27

N

nordanney • 13 Jul 2019 11:57

Warm / not cold floor – underfloor heating?

A

atomic2000•1 Jul 2019 13:54

Answers: 10

L

Lumpi_LE • 12 Jul 2019 14:28

Town & Country – Rotex Heat Pump

A

Andre77•14 Aug 2018 00:25

Answers: 12

A

AachenHaus • 10 Jul 2019 22:48

Which heating system is best for a new 200 sqm house?

C

ChaLeLa•24 Jun 2019 22:26

Answers: 54

L

Lumpi_LE • 1 Jul 2019 11:02

Create a wall opening for the pipes of a monoblock air-to-water heat pump

A

anat79•21 Apr 2019 11:30

Answers: 5

B

boxandroof • 25 Jun 2019 16:34

Heating system failure caused by ammonia from the drainage system

L

Lorenz-AKU•17 Jun 2019 12:23

Answers: 15

T

Tassimat • 25 Jun 2019 12:49

Does it make sense to install an air conditioning system?

I

Illya-Berlin•17 Jun 2019 23:51

Answers: 31

H

hampshire • 23 Jun 2019 22:07

Cooling with underfloor heating systems – is special insulation necessary?

M

MiIng•21 Jun 2019 04:50

Answers: 5

T

Tego12 • 23 Jun 2019 20:26

How to Keep an Older House Cool? Location: Africa

B

Benutzer19•21 Jun 2019 22:20

Answers: 15

B

Benutzer19 • 22 Jun 2019 11:27

House purchased. Termination of liquefied petroleum gas (LPG) contract.

A

Alexius•27 Dec 2018 14:26

Answers: 23

A

Alexius • 19 Jun 2019 17:29

Cabinet with air-to-water heat pump and water storage tank. Does anyone know this system?

Lucrezia•12 Jun 2019 22:08

Answers: 24

H

haydee • 17 Jun 2019 19:51

KfW40 house offer with heat pump and mechanical ventilation with heat recovery— is it worth it?

Q

querys_•25 May 2019 21:19

Answers: 39

Q

querys_ • 15 Jun 2019 18:57

Experiences with heat pumps and photovoltaic systems?

Pexyn•15 Nov 2018 22:58

Answers: 39

G

gnika77 • 10 Jun 2019 23:55

Refilling Water in a Ceiling Heating System – What Pressure (Bar) Is Required?

S

speer•10 Jun 2019 12:41

Answers: 1

Mycraft • 10 Jun 2019 14:16

Older building requires a new heating system

M

Masabidi•8 Jun 2019 16:19

Answers: 5

M

Masabidi • 10 Jun 2019 11:27

Cooling in summer with an air-to-water heat pump, underfloor heating, and/or a ventilation system?

A

AnNaHF79•21 Apr 2018 16:39

Answers: 29

S

sla83 • 6 Jun 2019 21:09

Retrofit Installation of Split Inverter Air Conditioning System

E

ElBoCaDiLlO•4 Jun 2019 14:49

Answers: 6

Mycraft • 6 Jun 2019 19:03

Gas or Heat Pump? Experiences and Feedback

T

tumaa•24 Apr 2019 08:41

Answers: 115

B

boxandroof • 29 May 2019 10:35

Individual Room Control with Cooling Function (Is Underfloor Heating with a Water-to-Water Heat Pump Practical?)

MadameP•8 May 2019 21:21

Answers: 7

T

Tego12 • 9 May 2019 17:02

Temperature differences in hot water tanks between the thermometer and the tank sensor

G

gif0061•8 May 2019 11:12

Answers: 5

F

Fairplay-Haus • 8 May 2019 22:33

Which heating system is best for a newly built detached two-family house on an undeveloped plot?

H

Haus1986•2 May 2019 11:39

Answers: 1

L

Lumpi_LE • 2 May 2019 11:49

Which Heating System Is Best for a New Single-Family Home?

B

bombe87•12 Apr 2019 17:50

Answers: 18

H

Haus1986 • 1 May 2019 21:39

Heat Pump No Longer Available – Legal Question

S

Stadtvilla19•29 Apr 2019 11:47

Answers: 30

A

aero2016 • 1 May 2019 08:56

Heat pump or gas with a central ventilation system featuring heat recovery

L

Llehsif•3 Apr 2019 14:33

Answers: 16

ares83 • 30 Apr 2019 14:00

Alternative to the Weishaupt WWP LS 8 (Rotex, Kermi, etc.)?

C

Christian K.•19 Apr 2019 13:55

Answers: 11

B

boxandroof • 22 Apr 2019 21:31

KfW 55 - Sole Heat Pump: Which Hot Water Storage Tank and Related Components?

H

Hausbauer20•21 Apr 2019 10:55

Answers: 4

B

boxandroof • 21 Apr 2019 23:08

Underfloor Heating in an Older Home with Plank Flooring

Lemberger•18 Apr 2019 14:18

Answers: 3

H

hampshire • 21 Apr 2019 12:21

Remove or Keep Old Radiators?

H

Haus_käufer•18 Apr 2019 13:19

Answers: 5

H

hampshire • 21 Apr 2019 08:37

What capacity does the heat pump need to have?

D

Dalle•17 Apr 2019 20:44

Answers: 6

B

boxandroof • 18 Apr 2019 09:40

Underfloor heating – Return flow warmer than supply?! What to do?

Earth2018•13 Apr 2019 23:32

Answers: 1

wrobel • 14 Apr 2019 03:00

LWZ 504 with or without buffer tank

R

Roppo•2 Oct 2018 07:54

Answers: 14

U

United98 • 10 Apr 2019 13:09

Maintenance Agreement for Heating System with Air-to-Water Heat Pump

M

Malz1902•5 Apr 2019 10:26

Answers: 11

M

Malz1902 • 10 Apr 2019 09:00

Which heating system? Gas or electric heating?

S

smurf26579•16 Mar 2019 20:08

Answers: 19

B

boxandroof • 2 Apr 2019 12:22

Heating System Concept for a New Single-Family Home of Approximately 190 m²: Split Heat Pump vs. Ground Source Heat Pump

C

chridre•1 Mar 2019 11:22

Answers: 13

G

gnika77 • 25 Mar 2019 14:46

Remove oil heating, install gas condensing boiler plus solar?

P

Pianist•18 Mar 2019 09:21

Answers: 27

P

Pianist • 19 Mar 2019 11:21

Ground collectors for smaller areas?

Lucrezia•17 Mar 2019 22:05

Answers: 8

D

denz. • 19 Mar 2019 06:10

Hydraulic balancing and heating system commissioning

A

anat79•16 Mar 2019 21:11

Answers: 9

A

anat79 • 18 Mar 2019 22:48

Single-family house from 1962: issues with heating pipes and radiators?

P

paddylg•18 Mar 2019 15:33

Answers: 1

Y

ypg • 18 Mar 2019 20:09

Omitting individual room control? Mechanical ventilation with heat recovery + gas heating, new build

K

Kabelmodem87•15 Mar 2019 08:16

Answers: 57

W

wurmwichtel • 18 Mar 2019 12:42

Heat pump upstairs and infrared heating in the basement? Does that make sense?

K

Keishadow•28 Feb 2019 12:35

Answers: 8

A

apokolok • 6 Mar 2019 13:40

Rust on Gas Pipe in Basement – What to Do?

T

tonnfrank•26 Feb 2019 04:55

Answers: 5

T

tonnfrank • 1 Mar 2019 09:16

Central gas heating combined with a gas cooktop in a multi-family dwelling?

I

imsi123•28 Feb 2019 20:39

Answers: 2

Y

ypg • 28 Feb 2019 22:55

Heating System for Our Single-Family Home

B

Bauherrin92•26 Feb 2019 10:10

Answers: 23

blackm88 • 28 Feb 2019 21:27

Underfloor Heating Beneath Wood Plank Flooring

T

Theodorius•20 Dec 2018 14:20

Answers: 49

F

fach1werk • 24 Feb 2019 20:42

When does a gas boiler need to be replaced?

K

Kimi190•18 Feb 2019 17:17

Answers: 3

Knöpfchen • 22 Feb 2019 20:00

Discolored heating system water with signs of rust detected.

H

hstkai•13 Dec 2017 19:43

Answers: 44

C

cinderella21 • 22 Feb 2019 13:07

Heating system for a new building with 4 residential units

D

dobbelhaus•18 Feb 2019 19:43

Answers: 0

D

dobbelhaus • 18 Feb 2019 19:43

Which door stopper is suitable for a boiler room?

K

Kimi190•18 Feb 2019 09:17

Answers: 2

K

Kimi190 • 18 Feb 2019 10:25

Current Test Reports on Air-to-Water Heat Pumps

H

Hans-Maulwurf•24 Jan 2019 11:16

Answers: 19

F

Fenilia • 15 Feb 2019 15:04

Setting Up Gas Condensing Boiler Junkers Cerapurmodul ZBS 14

G

Goldi09111•4 Feb 2019 21:32

Answers: 23

G

Goldi09111 • 13 Feb 2019 08:23

KfW 70 House: Gas Consumption Too High, What Solar Panel Output Is Needed?

aytex•22 Jan 2016 10:16

Answers: 8

aytex • 11 Feb 2019 20:54

Upgrading a Basic Oil Heating System for Domestic Hot Water, Underfloor Heating, and Solar Thermal Integration

T

Tassimat•6 Feb 2019 16:21

Answers: 4

B

boxandroof • 6 Feb 2019 20:27

Who installs district heating systems?

C

Christian K.•29 Jan 2019 09:38

Answers: 24

B

boxandroof • 5 Feb 2019 13:03

Which heating system? Where to start? With the manufacturer?

C

Christian K.•12 Jan 2019 18:18

Answers: 6

O

Obstlerbaum • 1 Feb 2019 14:23

Controlled Residential Ventilation with Cooling: Ground Source Heat Pump Using Brine Loop Instead of Air-to-Water Heat Pump?

C

Christian K.•3 Jan 2019 22:37

Answers: 30

S

Steffen80 • 1 Feb 2019 12:14

Which air-to-water heat pump to choose (sizing, storage, etc.)

H

Hans-Maulwurf•31 Jan 2019 10:35

Answers: 1

B

boxandroof • 31 Jan 2019 12:09

Hydraulic Balancing of Underfloor Heating Systems

T

TomTom250•28 Jan 2019 19:03

Answers: 19

Mycraft • 30 Jan 2019 13:00

Extension and Heating

G

gerhard2k1•28 Jan 2019 12:33

Answers: 1

N

Nordlys • 28 Jan 2019 12:40

Proper Ventilation and Dehumidification

B

Blankenhuter•16 Jan 2019 13:44

Answers: 8

N

Nordlys • 27 Jan 2019 20:29

The underfloor heating in one room is not turning on.

K

Kaliz01•23 Jan 2019 19:59

Answers: 27

M

Maria16 • 25 Jan 2019 07:02

What do you think about a fuel cell boiler for heating?

Salus_86•27 Mar 2018 21:58

Answers: 6

G

GeneralVW • 22 Jan 2019 15:04

Vitovalor PT2 as a New Heating System?

D

Degger•6 Oct 2018 11:51

Answers: 1

G

GeneralVW • 22 Jan 2019 15:00

Installing Air Conditioning in a New Build

P

Payday•19 Jan 2019 22:59

Answers: 25

Mycraft • 21 Jan 2019 21:14

Costs for a ventilation system

J

julianpe•19 Jan 2019 11:57

Answers: 6

G

goalkeeper • 19 Jan 2019 23:14

Covering ground source heat pump probes – yes or no?

kaho674•17 Jan 2019 12:30

Answers: 6

C

Caspar2020 • 18 Jan 2019 11:13

Company Lüumel, trench collector (horizontal ground heat exchanger)

D

daytona•3 Dec 2015 06:58

Answers: 35

Musketier • 18 Jan 2019 09:50

New Construction – Energy Consumption of the Heat Pump / Electric Auxiliary Heater

J

Jan Latta•8 Nov 2018 19:08

Answers: 19

B

bierkuh83 • 12 Jan 2019 08:16

Preheating the intake air of the outdoor unit of an air source heat pump?

A

Almo85•1 Nov 2018 11:27

Answers: 8

M

Müllerin • 8 Jan 2019 17:56

Climate control unit with warranty? Any recommendations?

E

Elina•7 Jan 2019 18:17

Answers: 0

E

Elina • 7 Jan 2019 18:17

Heating system with multiple heating circuits?

T

Theodorius•7 Jan 2019 11:15

Answers: 7

Mycraft • 7 Jan 2019 15:09

Is a Gas Condensing Boiler a Practical Choice for New Single-Family Homes Under the 2016 Energy Saving Regulation?

B

Bob79•6 Jan 2019 13:18

Answers: 28

Mycraft • 7 Jan 2019 14:37

Renovating an Older Home: Underfloor Heating or Radiators?

J

J-F-E•2 Jan 2019 17:55

Answers: 6

E

Elina • 6 Jan 2019 13:17

Exhaust pipe from gas boiler through the wall?

T

Theodorius•4 Jan 2019 18:49

Answers: 2

wrobel • 5 Jan 2019 12:33

Hydraulic Balancing Report

W

Wickie•4 Jan 2019 09:44

Answers: 5

D

Domski • 4 Jan 2019 20:16

Experience with Giersch GiegaStar Compact -200S

S

Skalanis•4 Jan 2019 14:21

Answers: 0

S

Skalanis • 4 Jan 2019 14:21

Are icicles on an air source heat pump normal?

S

sco0ter•26 Dec 2018 21:31

Answers: 4

F

fragg • 2 Jan 2019 08:46

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

C

Christian K.•31 Dec 2018 16:20

Answers: 4

T

Tego12 • 31 Dec 2018 17:48

Heating systems, insulation, government energy efficiency programs, photovoltaic panels – are these components worthwhile?

M

Menelaos•20 Dec 2018 16:44

Answers: 9

11ant • 30 Dec 2018 21:43

Is it possible to convert a Smeets fresh air heating system during renovation?

N

Nerkokasum•29 Nov 2018 12:59

Answers: 8

D

Der-w • 29 Dec 2018 21:36

Which detector is recommended for a boiler room with a gas heating system?

Q

qwertzuiop•29 Dec 2018 16:14

Answers: 0

Q

qwertzuiop • 29 Dec 2018 16:14

Guntamatic Pellet Heating System: Supply Water Temperature Too High

Earth2018•22 Dec 2018 19:03

Answers: 6

Earth2018 • 26 Dec 2018 18:11

Underfloor heating not working properly or too slow to respond?

305er•21 Dec 2018 22:50

Answers: 5

L

Lumpi_LE • 22 Dec 2018 11:15

Surprised by the low gas consumption

H

hemali2003•15 Nov 2018 23:56

Answers: 18

L

Lumpi_LE • 20 Dec 2018 13:36

Is the additional cost for underfloor heating justified?

C

chrisw81•17 Dec 2018 13:57

Answers: 12

P

pffreestyler • 20 Dec 2018 11:54

Used Heating System in New Construction

T

Theodorius•18 Dec 2018 12:40

Answers: 16

A

Anoxio • 20 Dec 2018 09:41

Underfloor heating: Is laminate or tile flooring warmer underfoot?

H

Hexe1717•6 Dec 2018 15:34

Answers: 35

Y

Yosan • 18 Dec 2018 12:03

Disable hot water recirculation?

B

baschdieh•17 Dec 2018 11:24

Answers: 8

D

dertill • 17 Dec 2018 15:24

exhaust pipe of gas condensing boiler / thermal bridge

B

body123•11 Dec 2018 14:16

Answers: 2

B

body123 • 11 Dec 2018 19:37

Is it worthwhile to upgrade a pellet heating system to a gas or more modern system?

C

Co2k_zhenka•1 Dec 2018 20:11

Answers: 5

B

Bookstar • 2 Dec 2018 11:45

Issues Heating the Screed with an Air-to-Water Heat Pump

A

anat79•30 Nov 2018 18:37

Answers: 8

A

anat79 • 30 Nov 2018 21:47

Looking for a supplementary heating solution for a bathroom with a slow-responding underfloor heating system

D

DasHausimWald•2 Oct 2018 11:36

Answers: 8

R

RohrHans • 29 Nov 2018 12:32

Special Case: New Construction and Heating System Upgrade

C

chesse1989•25 Nov 2018 21:29

Answers: 1

D

dertill • 25 Nov 2018 22:09

Heating costs for KfW55 – electricity costs seem too high to me

D

Der-w•7 Nov 2018 19:56

Answers: 26

B

bernie • 25 Nov 2018 17:37

Energy Saving Regulation 2016: Hydronic Pellet Stove

D

darnok•20 Jun 2017 19:46

Answers: 5

wrobel • 24 Nov 2018 07:20

Spare parts for Rotex Gas Solar Unit 5

K

Kaltblut•20 Nov 2018 18:28

Answers: 1

K

Kaltblut • 20 Nov 2018 18:33

Domestic hot water heat pump plus air-to-water heat pump?

Bauherr&-frau•31 Oct 2018 20:07

Answers: 3

I

Illo77 • 20 Nov 2018 14:11