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!

Tips for Radiators

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Träumerle•7 Sep 2020 12:01

Answers: 3

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nordanney • 7 Sep 2020 12:34

House built in 1914 to receive a new heating system

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NilsHolgerson•3 Sep 2020 14:16

Answers: 10

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NilsHolgerson • 4 Sep 2020 12:44

Additional Heating Support from Solar/Pellet Stove

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koschka•27 Aug 2020 10:00

Answers: 12

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Daniel-Sp • 27 Aug 2020 18:25

Natural Cooling / NC-Box Experiences

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Thomas7•29 Mar 2020 17:49

Answers: 20

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Stadtvilla19 • 21 Aug 2020 19:20

Odor coming from the underfloor heating manifold

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Hältebrück•19 Aug 2020 10:58

Answers: 3

Patricck • 19 Aug 2020 21:08

How to Tell if the Underfloor Heating Is Operating – ERR Still Without Thermostat Cover

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Tx-25•15 Jul 2020 10:41

Answers: 50

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Daniel-Sp • 10 Aug 2020 15:02

Good Brine-to-Water Heat Pump and Mechanical Ventilation with Heat Recovery Combination

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Ybias78•7 Aug 2020 06:03

Answers: 6

Mycraft • 7 Aug 2020 09:54

Exotic combination: wood pellets plus exhaust air heat pump?

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RockyFranco•31 Jul 2020 21:44

Answers: 28

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T_im_Norden • 3 Aug 2020 12:18

Steibel Eltron LWZ 504 in a New Construction Project

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MiIng•14 Jul 2018 11:20

Answers: 14

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MiIng • 31 Jul 2020 20:09

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

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Grym•4 Feb 2017 08:44

Answers: 10

sirhc • 28 Jul 2020 13:23

Air-to-Water Heat Pump for New Construction – Single-Family Home with Basement – Which Model?

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exto1791•20 Jul 2020 12:01

Answers: 16

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exto1791 • 28 Jul 2020 09:03

Installation of Domestic Hot Water Mixing Valve ESBE VAT320/VAT322

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Gerd S.•24 Jul 2020 12:59

Answers: 1

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Gerd S. • 27 Jul 2020 12:46

New single-family home with propane gas – is it possible without photovoltaic or solar panels?

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pagoni2020•16 Jul 2020 19:07

Answers: 24

Nida35a • 25 Jul 2020 16:22

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

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Pädda•16 Jul 2020 11:32

Answers: 7

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borderpuschl • 17 Jul 2020 09:19

What is the maximum screed thickness for underfloor heating?

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Tx-25•12 Feb 2020 14:46

Answers: 8

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Tamstar • 16 Jul 2020 10:47

Preparations for Central Air Conditioning in New Construction

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AllThumbs•14 Jul 2020 09:41

Answers: 13

Mycraft • 14 Jul 2020 15:40

Water temperature in 300-liter tank – air-to-water heat pump with underfloor heating, photovoltaic system, and controlled mechanical ventilation with heat recovery

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Tx-25•13 Jul 2020 14:15

Answers: 5

tomtom79 • 13 Jul 2020 17:42

Heat Pump & Central Mechanical Ventilation System

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Insolator•12 Jul 2020 18:58

Answers: 21

Mycraft • 13 Jul 2020 17:16

Replacing the Heating System in an Older Home: Which Option Is Best?

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tiborb•4 May 2020 14:51

Answers: 49

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tiborb • 13 Jul 2020 15:51

Underfloor heating: experiences with Schluter Bekotec Therm system versus traditional methods?

bvb09•11 Jul 2020 10:25

Answers: 3

Mycraft • 11 Jul 2020 12:10

LWZ 8 CS Premium Combination Unit with Air-to-Water Heat Pump, Controlled Ventilation System, and Hot Water Storage Tank

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Bauherr am L•6 Jul 2020 20:56

Answers: 15

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Daniel-Sp • 8 Jul 2020 11:44

Ceiling heating system with cooling function

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Unsure•4 Jul 2020 11:33

Answers: 8

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Unsure • 4 Jul 2020 15:50

Heat meters required on every floor

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S_t_e_p_h_a_n•29 May 2020 10:48

Answers: 10

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S_t_e_p_h_a_n • 3 Jul 2020 09:03

Which type of heating pipes are commonly used nowadays?

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Olli_35•11 Jun 2020 18:16

Answers: 19

Knöpfchen • 2 Jul 2020 21:24

BAFA Subsidy – Heating System Differs from the Application

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Tx-25•22 Jun 2020 14:06

Answers: 8

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Cleo165 • 1 Jul 2020 11:43

Is it acceptable to have a bend in a copper gas pipe?

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Detlev69•29 Jun 2020 21:14

Answers: 11

11ant • 30 Jun 2020 13:34

Looking for an Affordable Chimney System

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Brainstorming•24 Apr 2020 22:31

Answers: 5

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PetitJeune • 28 Jun 2020 16:07

Hygiene storage tank or standard hot water tank?

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neutronbx•27 Jun 2020 02:08

Answers: 2

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neutronbx • 28 Jun 2020 14:54

Which heating and cooling system is the most effective?

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Julian2301•25 Jun 2020 12:35

Answers: 17

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Strahleman • 26 Jun 2020 18:11

Experiences with the slinky ground loop collector in the Bavaria region?

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NeuerBauherr•22 Jun 2020 21:46

Answers: 10

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Strahleman • 24 Jun 2020 17:22

Additional Costs for Air-to-Water Heat Pump Justified for Subsidized System

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nick205•22 Jun 2020 10:41

Answers: 9

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nick205 • 22 Jun 2020 15:43

Is it practical to combine underfloor heating with a wood-burning stove?

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pagoni2020•18 Jun 2020 22:46

Answers: 11

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Ben-man • 19 Jun 2020 11:41

ERR, KNX, heat pump, and controlled residential ventilation – what are your thoughts?

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tumaa•17 Jun 2020 16:23

Answers: 10

Tarnari • 17 Jun 2020 18:30

Older Building with Natural Ventilation and "Cooling"?

ruediger42•13 Jun 2020 19:54

Answers: 6

Mycraft • 14 Jun 2020 14:15

Heating Concept for a 3-Liter-or-Better House, District Heating Possibly Combined with Underfloor Heating, etc.

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altgauer•13 Jun 2020 13:07

Answers: 7

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haydee • 14 Jun 2020 00:12

Active cooling function heat pump or air conditioning in new construction

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Trombone3•10 Jun 2020 19:27

Answers: 12

HAL06120 • 11 Jun 2020 13:46

Is the energy consumption estimate provided by the energy consultant realistic?

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Zigenpeter86•10 Jun 2020 14:06

Answers: 1

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Karl H. • 10 Jun 2020 15:19

Installation of an Air-to-Water Heat Pump – Is This Setup Correct?

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Mertha257•6 Jun 2020 13:58

Answers: 44

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T_im_Norden • 10 Jun 2020 11:10

Air-to-water heat pump with enclosure: yes or no?

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Jako1971•31 May 2020 18:41

Answers: 13

tomtom79 • 6 Jun 2020 21:10

Which Combined Heat and Power (CHP) Unit – Costs?

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m1oSis123•5 Jun 2020 16:27

Answers: 15

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hampshire • 6 Jun 2020 19:52

Heating load calculation or room heating load

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Bauherr am L•25 May 2020 14:20

Answers: 26

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Strahleman • 5 Jun 2020 14:41

BAFA Funding After Construction Has Started

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Pamiko•30 May 2020 20:59

Answers: 5

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Fuchur • 31 May 2020 11:00

Looking for a reliable ground source heat pump

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burgerking•28 May 2020 01:26

Answers: 3

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denz. • 28 May 2020 11:05

Underfloor Heating Contamination?

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Thorsten987•27 May 2020 13:54

Answers: 5

Mycraft • 27 May 2020 16:24

Room Thermostats / Actuators for Underfloor Heating

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Brainstorming•27 May 2020 10:04

Answers: 10

Mycraft • 27 May 2020 15:31

Differences Between a Masonry Heater and a Fireplace

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anderl80•24 May 2020 12:35

Answers: 3

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Grundaus • 25 May 2020 13:09

Matte black spray paint for installations?

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Pianist•23 May 2020 16:32

Answers: 4

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Pianist • 24 May 2020 11:17

Ground source heat probe in a former mining area

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DamDumDob•20 May 2020 18:11

Answers: 2

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DamDumDob • 20 May 2020 20:00

Surface heating in solid construction – should it be covered with plaster or drywall?

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annab377•18 May 2020 10:02

Answers: 2

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annab377 • 19 May 2020 19:46

Option to heat a basement of about 70 m²

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immermehr•11 May 2020 21:35

Answers: 11

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immermehr • 17 May 2020 20:59

Boiler doesn’t fit into the recess. What options are available?

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Tx-25•13 May 2020 20:21

Answers: 9

seat88 • 14 May 2020 13:53

Heating Settings and Room Temperature Measurement

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deep•5 May 2020 11:09

Answers: 12

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T_im_Norden • 5 May 2020 21:49

Local heating network with ground source heat pump

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mmmmbau•30 Apr 2020 09:31

Answers: 2

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mmmmbau • 4 May 2020 11:05

Condensing Gas Boiler or Heat Pump?

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derGlomb•1 May 2020 17:37

Answers: 10

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Lumpi_LE • 4 May 2020 07:56

Air-to-air heat pump, but still radiators?

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Worrier84•25 Apr 2020 09:21

Answers: 11

Mycraft • 26 Apr 2020 09:58

Locating a geothermal probe without digging?

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Krefelder•21 Apr 2020 20:29

Answers: 4

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Krefelder • 22 Apr 2020 19:25

Air-to-Air or Air-to-Water Heat Pump?

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exto1791•7 Apr 2020 13:06

Answers: 34

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Heizungsbau76 • 20 Apr 2020 20:53

Replacing a 28-year-old gas heating system

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djdj125•19 Apr 2020 13:48

Answers: 3

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Joedreck • 19 Apr 2020 15:05

Operate fresh water systems with partially very high and low buffer temperatures

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fraubauer•18 Apr 2020 14:29

Answers: 17

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fraubauer • 19 Apr 2020 11:46

Using a Heating Oil Tank as a Diesel Fuel Tank?

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Meini76•17 Apr 2020 13:12

Answers: 13

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hampshire • 17 Apr 2020 23:47

Living room humidity approximately 30–40%

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Malz1902•24 Jan 2019 13:38

Answers: 22

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Denk_Mal19 • 16 Apr 2020 16:30

Recommendation for Digital Room Thermostat for Air-to-Water Heat Pump

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goalkeeper•15 Apr 2020 22:17

Answers: 16

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fragg • 16 Apr 2020 13:35

Air-to-water heat pump active cooling

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C.beckmann1986•13 Apr 2020 16:54

Answers: 15

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knalltüte • 14 Apr 2020 11:23

Gas fireplace, but heating with a heat pump?!

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j1985•15 Sep 2019 19:54

Answers: 32

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Rosthaus • 11 Apr 2020 09:49

Install fresh air supply duct for the fireplace into the screed layer

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Appel2000•6 Apr 2020 22:20

Answers: 2

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Appel2000 • 6 Apr 2020 23:40

Heating System Design (Ground-Source Heat Pump) – Experiences and Tips

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Thomas7•29 Mar 2020 17:40

Answers: 4

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Lumpi_LE • 6 Apr 2020 09:06

Ventilating a Conservatory or Sunroom? What Factors to Consider?

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Horschie•5 Apr 2020 20:03

Answers: 1

HausiKlausi • 6 Apr 2020 01:04

In which season is it best to completely fill a pellet tank? What about moisture concerns?

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fraubauer•1 Apr 2020 09:23

Answers: 1

wrobel • 3 Apr 2020 00:15

Heat load calculation is 10.3 kW; is an air-to-water heat pump with 9.5 kW capacity sufficient?

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hippjoha•5 Mar 2020 22:09

Answers: 29

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gnika77 • 2 Apr 2020 10:01

Air-to-water heat pump – expansion tank

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Andre77•30 Mar 2020 23:08

Answers: 4

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halmi • 31 Mar 2020 09:24

Heat pump – Can the screed be warmed without an outdoor unit?

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Andre77•30 Mar 2020 22:57

Answers: 4

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gnika77 • 31 Mar 2020 09:10

Underfloor heating and radiators – two thermostats in one room

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B.Baumeister•26 Mar 2020 20:43

Answers: 10

bon1980 • 28 Mar 2020 20:29

When does BAFA pay out the subsidy for air-to-water heat pumps in new construction?

Tolentino•26 Mar 2020 14:52

Answers: 10

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Fuchur • 27 Mar 2020 21:11

Does it make sense to install an air conditioning system as a retrofit?

andimann•25 Mar 2020 18:19

Answers: 12

Mycraft • 27 Mar 2020 10:02

Leaking underfloor heating system?

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M. Gerd•22 Mar 2020 17:56

Answers: 6

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M. Gerd • 23 Mar 2020 08:05

Heat pump on a pedestal or installed directly on the floor?

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Andre77•19 Mar 2020 20:22

Answers: 12

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hampshire • 21 Mar 2020 20:16

Is a wood-burning stove room air-independent?

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Reini1234•19 Mar 2020 15:22

Answers: 6

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Reini1234 • 20 Mar 2020 09:07

Space requirements for heat pump and ventilation system

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LostWolf•10 Mar 2020 10:54

Answers: 7

tomtom79 • 19 Mar 2020 07:27

Heating System Quote – What Information Is Needed

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Mr.T2000•15 Mar 2020 07:26

Answers: 6

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Lumpi_LE • 18 Mar 2020 14:30

When are expansion joints necessary?

Vicky Pedia•24 Feb 2020 20:56

Answers: 21

Vicky Pedia • 11 Mar 2020 22:22

Air-to-Water Heat Pump: Icing Up, Noisy, Continuous Operation?

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dertutnix•29 Nov 2016 13:26

Answers: 33

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Joedreck • 9 Mar 2020 19:56

Experience with Water-Bearing Fireplace vs. Conventional Wood Stove

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Adonis01•7 Mar 2020 19:32

Answers: 5

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hampshire • 7 Mar 2020 20:12

Old gas heating system broken – need a new one, but what kind?

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Nissandriver•11 Feb 2020 07:34

Answers: 58

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nordanney • 4 Mar 2020 15:48

Exhaust Air Heat Pump vs. Ground Source (Brine/Water) Heat Pump in Rental Apartment Buildings

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schlckr7•1 Mar 2020 16:54

Answers: 5

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schlckr7 • 3 Mar 2020 09:05

Wrong Heating System Installed — Issues and Consequences?

opalau•29 Feb 2020 17:08

Answers: 25

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hegi___ • 2 Mar 2020 18:34

Underfloor Heating – Wet System and Dry System

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Toffifee88•27 Feb 2020 09:41

Answers: 2

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Deliverer • 2 Mar 2020 15:33

Cost Difference Between Ceiling Heating and Underfloor Heating

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Elithenas•28 Feb 2020 17:06

Answers: 8

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Deliverer • 2 Mar 2020 15:18

User Experiences with Pellet Heating Systems

Vicky Pedia•18 Jan 2020 15:42

Answers: 17

Vicky Pedia • 1 Mar 2020 20:07

Underfloor Heating — One Room Remains Cold

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Matthias 40•28 Feb 2020 21:36

Answers: 4

Vicky Pedia • 28 Feb 2020 22:52

Air-to-water heat pump Elco Aerotop Split 09 M-R 250

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Ulmerin•25 Feb 2020 20:06

Answers: 0

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Ulmerin • 25 Feb 2020 20:06

Trench Collectors

Hassbergehaus•18 Feb 2020 08:26

Answers: 2

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Deliverer • 25 Feb 2020 15:19

Fresh water station and buffer tank: a technically better choice?

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freisinger•23 Feb 2020 08:16

Answers: 24

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freisinger • 24 Feb 2020 20:52

Experience with Waterkotte Model / Type Basic Line Split 5015.5

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canerol•24 Feb 2020 17:21

Answers: 0

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canerol • 24 Feb 2020 17:21

Zero Feed-in Rule for Combined Heat and Power Units – Costs?

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REH63110•18 Feb 2020 10:10

Answers: 3

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seutore • 19 Feb 2020 13:15

Discoloration of Heating Water (Only the Supply Line)

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lesmue79•18 Feb 2020 06:17

Answers: 20

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lesmue79 • 19 Feb 2020 06:19

Eligible domestic hot water storage tank, ErP class A

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freisinger•14 Feb 2020 12:52

Answers: 2

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freisinger • 16 Feb 2020 16:44

Outdoor unit of air-to-water heat pump mounted on the building or installed on the ground

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vaderle•15 Feb 2020 10:32

Answers: 6

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Bookstar • 15 Feb 2020 19:59

Evaluation of Local Heating Tariffs, Alternatives?

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MrChipsy•13 Feb 2020 11:50

Answers: 1

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Lumpi_LE • 13 Feb 2020 12:21

Air-to-water heat pump Dimplex System M with inverter

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Fabian7•10 Feb 2020 22:34

Answers: 0

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Fabian7 • 10 Feb 2020 22:34

Geothermal Heating Company: Where and How to Find One

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freisinger•7 Feb 2020 12:30

Answers: 1

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annab377 • 8 Feb 2020 10:30