# Wärmedurchlasswiderstand

## English translation: Thermal resistance

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
 German term or phrase: Wärmedurchlasswiderstand English translation: Thermal resistance Entered by:

 00:39 Feb 14, 2005
German to English translations [PRO]
Tech/Engineering - Materials (Plastics, Ceramics, etc.) / heating, flooring, parquet
 German term or phrase: Wärmedurchlasswiderstand Hello! This is from a text about laying parquet flooring over under-floor heating. Can anyone tell me what that big long word in the sentence below means? Also, am I right in thinking that the "qm" in "0,17 qm" is Quadratmeter, or is it something else entirely? Many thanks! Hilary. "Da nach Angaben der Heizungsfachleute der Wärmedurchlasswiderstand des Bodenbelages nicht höher als 0,17qm K/W sein sollte..."
 Hilary Davies ShelbyUnited States Local time: 02:20
 Thermal resistance Explanation:That's the entry in Ernst. qm = sq. meter (area) K = Kelvin (or degrees Celsius if you prefer) W = Watts (thermal power) So it takes 1 watt of thermal power to heat up 0.17 square meters of this material one degree Celsius.--------------------------------------------------Note added at 18 mins (2005-02-14 00:58:27 GMT)--------------------------------------------------Another way of looking at it: If the temperature difference between the 2 sides of the material is 1 degree Celsius, then an area of material 0.17 sq. meters in size will allow 1 Watt of thermal power to be conducted through it.--------------------------------------------------Note added at 21 mins (2005-02-14 01:01:20 GMT)--------------------------------------------------Better yet: Thermal resistivity, since we\'re talking about a property of the material. Thermal resistance refers to a specific real application.--------------------------------------------------Note added at 1 hr 18 mins (2005-02-14 01:57:39 GMT)--------------------------------------------------The same applies to Kelvin and Celsius. Kelvin refers to a unit of temperature and is used in a description of a property as is the case here, whereas Celsius refers to an actual measurement.--------------------------------------------------Note added at 1 day 14 hrs 22 mins (2005-02-15 15:01:51 GMT)--------------------------------------------------Forget what I wrote about it taking 1 Watt to \"heat up\" the material 1 degree. That was incorrect. The second way of looking at it is correct - steady state conditions with a temperature differential applied to the 2 sides. The thermal resistivity is the resistance of the material to the flow of heat energy from the side with higher temperature to the side with lower temperature. Measured in Joules of energy per second = Watts.
Selected response from:

rjbemben
Local time: 03:20
 fabulous, many thanks!4 KudoZ points were awarded for this answer

4 +5Thermal resistance
4 +1heat transfer resistance
 Jo Mayr
4 +1thermal resistance
 Martina Burkert
2 +1convection resistanceLancashireman

11 mins   confidence: peer agreement (net): +1
Wärmedurchlasswiderstand
convection resistance

Explanation:
Only google will reveal whether this is any use. Hmmm. www. google...

 LancashiremanUnited KingdomLocal time: 08:20Native speaker of: EnglishPRO pts in category: 78

agree  Jo Mayr: hi Andrew, guess its not google but the one who asks
 3 mins
-> Hi, Johannes. I've got a terrible feeling we're both going to miss out on this one.

17 mins   confidence: peer agreement (net): +1
Wärmedurchlasswiderstand
thermal resistance

Explanation:
I just translated a EN>GER document about thermally conductive materials. Thermal conductivity (Wärmedurchlässigkeit/ -leitfähigkeit) and thermal resistance (Wärmewiderstand, Wärmedurchlasswiderstand) were frequent terms in similar context

 Martina BurkertUnited StatesLocal time: 00:20Works in fieldNative speaker of: German

agree
 2 hrs

8 mins   confidence: peer agreement (net): +1
Wärmedurchlasswiderstand
heat transfer resistance

Explanation:
... Examples for the heat transfer resistance R si + R se : Constructional element. R si + R se [m²K/W]. External wall. 0.17. highest floor ceiling, externally ...
www.austrotherm.com/austrotherm/ en/main10/sub1/07782/index.shtml

--------------------------------------------------
Note added at 20 mins (2005-02-14 01:00:05 GMT)
--------------------------------------------------

... several heating seasons, we recommend - before installing the flooring - to raise ... floor with carpeting may raise the total heat transfer resistance and cause ...

 Jo MayrGermanyLocal time: 09:20Native speaker of: GermanPRO pts in category: 4

agree
 3 hrs
-> thanks, Smash! Wie es scheint ist der Terminus nicht genormt...

14 mins   confidence: peer agreement (net): +5
Wärmedurchlasswiderstand
Thermal resistance

Explanation:
That's the entry in Ernst.
qm = sq. meter (area)
K = Kelvin (or degrees Celsius if you prefer)
W = Watts (thermal power)
So it takes 1 watt of thermal power to heat up 0.17 square meters of this material one degree Celsius.

--------------------------------------------------
Note added at 18 mins (2005-02-14 00:58:27 GMT)
--------------------------------------------------

Another way of looking at it: If the temperature difference between the 2 sides of the material is 1 degree Celsius, then an area of material 0.17 sq. meters in size will allow 1 Watt of thermal power to be conducted through it.

--------------------------------------------------
Note added at 21 mins (2005-02-14 01:01:20 GMT)
--------------------------------------------------

Better yet: Thermal resistivity, since we\'re talking about a property of the material. Thermal resistance refers to a specific real application.

--------------------------------------------------
Note added at 1 hr 18 mins (2005-02-14 01:57:39 GMT)
--------------------------------------------------

The same applies to Kelvin and Celsius. Kelvin refers to a unit of temperature and is used in a description of a property as is the case here, whereas Celsius refers to an actual measurement.

--------------------------------------------------
Note added at 1 day 14 hrs 22 mins (2005-02-15 15:01:51 GMT)
--------------------------------------------------

Forget what I wrote about it taking 1 Watt to \"heat up\" the material 1 degree. That was incorrect. The second way of looking at it is correct - steady state conditions with a temperature differential applied to the 2 sides. The thermal resistivity is the resistance of the material to the flow of heat energy from the side with higher temperature to the side with lower temperature. Measured in Joules of energy per second = Watts.

 rjbembenLocal time: 03:20Native speaker of: EnglishPRO pts in category: 23
 fabulous, many thanks!

agree
 7 mins

agree  Johanna Timm, PhD: Wärmedurchlaßwiderstand thermal resistance www.bau.net/woerterbuch/de/war.htm; also:Wärmedurchlaßwiderstand Thermal resistance Résistance thermique www.domocontract.be/pdf/Ultra_TR.pdf
 18 mins

agree  xxxFrancis Lee: also on "qm"
 5 hrs

agree  Robert Schlarb: Exactly
 6 hrs

agree
 8 hrs

 Nov 2, 2017 - Changes made by Steffen Walter: Field Other » Tech/Engineering

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