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!

Air conditioning outdoor unit mounted on a wooden facade?

SarahMüller•16 Jun 2023 02:58

Answers: 4

i_b_n_a_n • 25 Oct 2023 17:52

Experience with infrared heating systems

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PeterPaule•10 Feb 2022 11:10

Answers: 45

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dertill • 23 Oct 2023 11:00

Electric surface heating (Thermoheld) in a KfW 40 bungalow with 80 sqm?

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eenuep1•1 Oct 2023 13:42

Answers: 20

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RotorMotor • 23 Oct 2023 10:09

Draining air conditioning condensate in a KfW55 energy-efficient new build

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DashDevil•20 Oct 2023 16:49

Answers: 0

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DashDevil • 20 Oct 2023 16:49

System diagram including buffer tank and solar thermal system

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Losgehtss•11 Oct 2023 22:16

Answers: 1

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RotorMotor • 12 Oct 2023 09:11

Balanced Mechanical Ventilation Vallox ValloPlus 350MV – Experiences, User Guide?

kati1337•8 Oct 2023 08:12

Answers: 10

kati1337 • 10 Oct 2023 21:37

Heat Pump Capacity and Buffer Tank Size(s) for New Single-Family Home

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Dachshund90•25 Sep 2023 20:45

Answers: 13

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Dachshund90 • 4 Oct 2023 20:48

Mounting the ventilation ducts of the controlled residential ventilation system on the flat duct manifold

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Allthewayup•26 Sep 2023 15:17

Answers: 16

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Allthewayup • 2 Oct 2023 12:02

Cooling via underfloor heating with a ground-source heat pump

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SirSydom•30 Apr 2015 11:27

Answers: 45

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SPATZ242 • 19 Sep 2023 01:00

Basic Information on Radiator Replacement in Older Buildings

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Alibert87•12 Jul 2023 13:57

Answers: 14

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KarstenausNRW • 15 Sep 2023 08:46

Is the size of the utility room sufficient?

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fyaylmf•12 Sep 2023 20:58

Answers: 16

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Schorsch_baut • 14 Sep 2023 08:10

Adapter for black steel pipe / steel pipe

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Austin_Power•11 Sep 2023 13:31

Answers: 0

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Austin_Power • 11 Sep 2023 13:31

Why does the compressor of the air-to-water heat pump keep running despite the solar thermal system reaching 140°C?

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petjos123•9 Sep 2023 14:59

Answers: 1

andimann • 11 Sep 2023 11:55

Decommissioning a Spartec heat pump

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Steffi1234•9 Sep 2023 11:00

Answers: 2

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Steffi1234 • 9 Sep 2023 12:55

Sealing of the stainless steel chimney exit point

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blackarrow1990•7 Sep 2023 07:59

Answers: 0

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blackarrow1990 • 7 Sep 2023 07:59

Experience with KfW55 solid construction + gas heating + 5 sqm solar panels

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Nutshell•1 May 2017 20:11

Answers: 37

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Nutshell • 16 Aug 2023 20:17

Use an infrared heater in the kitchen also as a splash guard.

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dzubo123•16 Aug 2023 16:15

Answers: 0

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dzubo123 • 16 Aug 2023 16:15

Combination of split air conditioning, gas heating, and solar energy

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Nutshell•22 May 2022 20:10

Answers: 12

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Nutshell • 15 Aug 2023 22:12

Comparison of Different Heating Systems

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Nutshell•3 Aug 2023 22:25

Answers: 66

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KarstenausNRW • 14 Aug 2023 21:07

Floor construction for hydronic (water-based) dry-build underfloor heating systems

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BauBauNRW•31 Jul 2023 09:43

Answers: 0

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BauBauNRW • 31 Jul 2023 09:43

Is it advisable to replace heating pipes in a solar house?

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Janny_D•18 Jul 2023 20:50

Answers: 0

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Janny_D • 18 Jul 2023 20:50

What type of storage or domestic hot water heating is suitable with district heating?

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fyaylmf•15 Jul 2023 08:18

Answers: 9

Tolentino • 18 Jul 2023 13:26

Can an air-source heat pump be used for basement cooling?

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Tecalorhn•14 Jul 2023 17:47

Answers: 2

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filosof • 14 Jul 2023 21:44

Heating System for a Bungalow with Two Residential Units

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Hausbau_Laien•30 Jun 2023 11:34

Answers: 11

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ypg • 30 Jun 2023 21:27

Replacing an Oil Heating System with a Heat Pump

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Eagel22•30 Jun 2023 21:00

Answers: 0

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Eagel22 • 30 Jun 2023 21:00

How to Properly Connect a Wood-Burning Stove with External Air Supply

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ny_unity•28 Jun 2023 14:14

Answers: 7

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ny_unity • 29 Jun 2023 13:35

Planning and Installation of Controlled Residential Ventilation as a DIY Project

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LostWolf•28 Jun 2023 12:57

Answers: 4

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LostWolf • 28 Jun 2023 13:20

Heat pump, hot water storage tank, tankless water heater, heat recovery ventilation (HRV), underfloor heating, heating and cooling

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Havanna86•20 Jun 2023 14:37

Answers: 12

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HeimatBauer • 26 Jun 2023 16:46

Single-room ventilation and cooling

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Osnabruecker•26 Jun 2023 10:55

Answers: 4

lastdrop • 26 Jun 2023 12:31

Hang a multisplit outdoor unit on roof beams?

Araknis•11 Jun 2023 22:29

Answers: 2

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Pitiglianio • 21 Jun 2023 18:47

Replacement of Heating Pump / High-Efficiency Pump for Gas Heating System

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Alibert87•14 Jun 2023 13:31

Answers: 6

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RotorMotor • 21 Jun 2023 12:00

Integrating Radiant Floor Heating / Underfloor Heating Effectively

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Gänseblümchen1•19 Jun 2023 20:15

Answers: 1

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RotorMotor • 20 Jun 2023 18:28

Heat pump and household electricity combined on a single meter

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GePrest•8 Jun 2023 12:11

Answers: 25

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HeimatBauer • 14 Jun 2023 13:17

Experiences with air conditioning in new builds?

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Mr.Vain•11 Jun 2022 11:07

Answers: 52

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paulch7 • 11 Jun 2023 07:02

Pellet Storage in a Self-Built Pellet Silo

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hotoyo01•7 Jun 2023 18:14

Answers: 8

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hotoyo01 • 9 Jun 2023 13:33

Experience with Retrofitted Milled Underfloor Heating in Older Buildings

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haadaa123•7 Jun 2023 09:15

Answers: 4

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KarstenausNRW • 7 Jun 2023 10:22

Recommendation for Underfloor Heating Providers

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marialili•30 May 2023 22:01

Answers: 0

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marialili • 30 May 2023 22:01

Installation of a Gas Heating System in New Construction 2023/2024

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robert0815•11 Apr 2023 14:47

Answers: 336

kati1337 • 24 May 2023 18:40

Underfloor Heating – Heating Circuit Remains Too Cold

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Bewohner0815•17 May 2023 20:03

Answers: 4

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Daniel-Sp • 18 May 2023 23:05

How have you installed your heat pumps?

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Heidi1965•29 Jun 2021 19:37

Answers: 15

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jokersmile • 14 May 2023 15:07

Mandatory heating system rental for new builds – is that allowed?

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Maulwurfbau•17 Nov 2022 11:23

Answers: 40

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Maulwurfbau • 10 May 2023 14:30

Placement of Air-to-Water Heat Pump Outdoor Unit and Controlled Residential Ventilation Ductwork

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Mucuc18•8 May 2023 16:30

Answers: 2

kati1337 • 8 May 2023 20:03

Connecting a Heat Pump to the Heating Manifold

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waldo123•3 May 2023 10:34

Answers: 12

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WilderSueden • 4 May 2023 21:30

Install a gas heating system, or switch to a heat pump?

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immoliker•30 Apr 2023 08:00

Answers: 6

kati1337 • 30 Apr 2023 10:29

What are the pellet prices in Germany in 2023?

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Garten2•28 Apr 2023 13:31

Answers: 1

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Garten2 • 29 Apr 2023 17:59

Is an air conditioning system necessary for a south-facing slope location?

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Guido1980•4 Mar 2020 12:12

Answers: 77

kati1337 • 27 Apr 2023 17:09

Read out the heat output generated by the EcoAir622M and EcoZenith555 Pro units

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maneswelt•25 Apr 2023 11:08

Answers: 0

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maneswelt • 25 Apr 2023 11:08

Radiators removed. Uncertainty about valves and where to refill the water?

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Campino•24 Apr 2023 22:01

Answers: 0

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Campino • 24 Apr 2023 22:01

Black flow tubes in underfloor heating?

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philipp1990•24 Apr 2023 10:34

Answers: 2

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philipp1990 • 24 Apr 2023 15:15

Using a Ventilated Facade as a Supplemental Heating Source?

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Sebastian_D.•17 Apr 2023 13:44

Answers: 5

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Sebastian_D. • 21 Apr 2023 09:00

Combination of Daikin Altherma ECH2O with a water-heated fireplace

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Max9871•19 Apr 2023 09:13

Answers: 1

A

Allthewayup • 20 Apr 2023 20:31

Temperature in the Boiler Room (Air Source Heat Pump)

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Egon der 3.•17 Apr 2023 00:08

Answers: 3

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WilderSueden • 17 Apr 2023 13:35

Design of a New Heating and Hot Water System for a 1970s Vacation Home

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Audiobampa•31 Mar 2023 21:23

Answers: 13

Nida35a • 15 Apr 2023 08:51

Low Moisture Levels in New Construction?

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NewHouseAppear•11 Apr 2023 20:41

Answers: 2

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xMisterDx • 11 Apr 2023 22:16

Mid-terrace house built in 2002, energy rating B, underfloor heating – heating system replacement

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B351721•9 Apr 2023 23:43

Answers: 3

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hanghaus2023 • 11 Apr 2023 07:53

Increase in pressure in cold water line during hot water heating-up

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de_mic_ous•7 Apr 2023 20:55

Answers: 13

KingJulien • 9 Apr 2023 21:17

What connections are required for outdoor units of heat pumps?

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Hausbauer09•31 Mar 2023 12:02

Answers: 3

Tolentino • 31 Mar 2023 12:43

Design of Underfloor Heating for a KfW 55 Energy-Efficient House with a Ventilation System

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dream2023•17 Feb 2023 16:29

Answers: 47

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dream2023 • 31 Mar 2023 09:49

Is the Vitodens 200-W sufficient for underfloor heating?

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Thomas38•27 Mar 2023 13:36

Answers: 17

Mycraft • 31 Mar 2023 09:15

Is an energy-efficient house with a heat pump, photovoltaic system, and water-bearing fireplace a practical combination?

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len9be6•27 Mar 2023 20:20

Answers: 6

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neo-sciliar • 31 Mar 2023 08:52

Adding Network Interfaces to a Heat Pump

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Waldbewohner•26 Mar 2023 10:39

Answers: 0

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Waldbewohner • 26 Mar 2023 10:39

Wood-burning stove from the 1980s – remove or keep?

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Alibert87•23 Mar 2023 14:26

Answers: 1

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NatureSys • 23 Mar 2023 20:21

Novelan Heat Pump Error 704 – Hot Gas Fault

chewbacca123•17 Dec 2022 08:47

Answers: 23

chewbacca123 • 21 Mar 2023 09:21

Lowering the Supply Temperature in Underfloor Heating Systems More Complex Than Expected?

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JohnnyEH•9 Mar 2023 22:07

Answers: 70

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RotorMotor • 16 Mar 2023 14:20

Functional heating – Implementation and Responsibility?

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KlausBautHaus•22 Feb 2023 08:42

Answers: 6

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KlausBautHaus • 14 Mar 2023 10:52

Alpha Innotec heat pump failure

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Stefan2.84•4 Dec 2021 16:33

Answers: 23

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Daniel-Sp • 6 Mar 2023 17:32

Heat pump for 148 sqm KfW55 house

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junijulibaut•13 Nov 2022 11:27

Answers: 99

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parcus • 2 Mar 2023 17:55

Controlling a room thermostat via Wi-Fi?

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Badener1970•1 Mar 2023 19:05

Answers: 0

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Badener1970 • 1 Mar 2023 19:05

Chimney and horizontal installation of the flue pipe

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LostWolf•27 Feb 2023 11:05

Answers: 7

andimann • 28 Feb 2023 17:20

Installing Underfloor Heating in Wood Flooring?

ateliersiegel•26 Feb 2023 11:52

Answers: 1

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KarstenausNRW • 26 Feb 2023 16:12

Older Building: Adding Underfloor Heating on the Upper Floor?

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wirsanieren202•12 Feb 2023 16:28

Answers: 14

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Scout** • 18 Feb 2023 20:14

Heat pump located directly next to the bedroom window

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bowbow91•18 Jan 2023 13:10

Answers: 13

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Snowy36 • 18 Feb 2023 16:37

Full Renovation Heat Pump: Viessmann vs. Samsung vs. Others?

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ESchuster•9 Feb 2023 15:42

Answers: 6

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Ysop*** • 13 Feb 2023 18:52

Hybrid heating system: Is combining a heat pump with a gas condensing boiler a practical solution for renovating older homes?

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taskyyy•19 Mar 2022 08:25

Answers: 26

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taskyyy • 12 Feb 2023 14:40

New Construction with Heat Pump – Experiences?

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MarcoGT•6 Feb 2023 11:31

Answers: 7

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Allthewayup • 11 Feb 2023 14:11

Gas Heating from January 1, 2024 – What to Do If Your Heating System Breaks Down?

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leschaf•21 Jan 2023 11:21

Answers: 29

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leschaf • 8 Feb 2023 12:40

Individual Room Control for Air-to-Water Heat Pump and Underfloor Heating

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Waldbewohner•31 Jan 2023 20:20

Answers: 20

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bortel • 2 Feb 2023 12:58

Building Energy Act 2023 – Heating Systems Outside the Thermal Envelope

HalloClarissa•1 Feb 2023 15:39

Answers: 4

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SoL • 1 Feb 2023 16:43

€1483 per kWp | Canadian Solar 11.48 kWp system with SMA inverter

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mr.xyz1•16 Jan 2023 14:34

Answers: 47

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karl.jonas • 30 Jan 2023 22:41

Evaluation of Quote for Gas/Condensing Boiler Including Solar Thermal System

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romnBG56•16 May 2020 14:09

Answers: 7

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Buschreiter • 24 Jan 2023 22:02

District chimney inspector refuses to clean the interior

Hendrik1980•19 Jan 2023 07:34

Answers: 7

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Zaba123 • 22 Jan 2023 14:37

Air Conditioner / Tankless Water Heater as Heating System

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Wolf6660•18 Jan 2023 13:21

Answers: 11

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Wolf6660 • 20 Jan 2023 09:55

Underfloor heating with a "pool" heat pump: is it feasible?

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laul.laulsen•19 Jan 2023 13:51

Answers: 3

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laul.laulsen • 19 Jan 2023 14:53

Decommissioning a Gas Heating System: What Alternative Heating Options Are Available?

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wiegehabt•16 Jan 2023 21:22

Answers: 11

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Joedreck • 19 Jan 2023 13:58

Heating system for a small older house of approximately 80 square meters with low ceiling height

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Wolf6660•16 Jan 2023 08:59

Answers: 3

i_b_n_a_n • 17 Jan 2023 21:31

Is it possible to operate a wood-burning stove with water heating without a central heating system?

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Wolf6660•14 Jan 2023 11:54

Answers: 5

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Wolf6660 • 14 Jan 2023 21:13

Replacing Logamax GB112-24 for Energy Savings?

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Robvoi79•13 Jan 2023 22:19

Answers: 0

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Robvoi79 • 13 Jan 2023 22:19

Vitodens 100 – Brainstorming for Replacing a Faulty Heating System

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jrel1238•5 Jan 2023 22:35

Answers: 10

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Buschreiter • 12 Jan 2023 07:12

Flow rate setting for underfloor heating at the manifold in liters per minute (L/min)

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vaderle•27 Dec 2022 12:53

Answers: 21

i_b_n_a_n • 6 Jan 2023 18:57

District Heating Connection – Questions and Considerations

askforafriend•4 May 2021 14:28

Answers: 11

se_na_23 • 6 Jan 2023 12:46

Modernizing a House with Night Storage Heaters: What Are the Options?

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exelzur•18 Dec 2022 13:04

Answers: 9

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exelzur • 19 Dec 2022 21:24

Heat Pump Efficiency at -12 Degrees?

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Nutshell•17 Dec 2022 23:55

Answers: 8

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Joedreck • 19 Dec 2022 07:12

MHG EcoStar 500 Night Setback

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Daniel42•18 Dec 2022 07:38

Answers: 0

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Daniel42 • 18 Dec 2022 07:38

Experiences with heat pump electricity consumption?

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mime270•13 Dec 2022 21:49

Answers: 22

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mime270 • 15 Dec 2022 21:13

Underfloor heating suddenly with no water flow at all

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Vermilli0n•13 Dec 2022 16:40

Answers: 1

i_b_n_a_n • 13 Dec 2022 17:40

Design of iDM heat pump with respect to COP (Coefficient of Performance)

Araknis•26 Aug 2022 11:21

Answers: 32

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Hausmanu • 8 Dec 2022 21:26

Fresh Air Heating vs. Air-to-Water Heat Pump Installed Indoors – Alternatives?

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Flitzer•21 Mar 2022 12:31

Answers: 10

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Muck2019 • 4 Dec 2022 23:21

Options for Climate Control in a New Building with Extensive Glass Facades?

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Andik81•4 Dec 2022 13:50

Answers: 7

rick2018 • 4 Dec 2022 19:34

New Heat Pump for an Older Home Without Renovation

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SaniererNRW123•3 Nov 2022 15:11

Answers: 32

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Muck2019 • 3 Dec 2022 16:01

Is a multi-split air conditioning system suitable for heating?

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lesmue79•19 Mar 2022 22:46

Answers: 72

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taschenonkel • 1 Dec 2022 17:24