# Calculate Heating load

**URL:** <https://forum.dynamobim.com/t/calculate-heating-load/2492>\
**Category:** Packages\
**Created:** [November 3, 2015, 5:15am UTC](https://forum.dynamobim.com/t/calculate-heating-load/2492 "2015-11-03T05:15:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Simon\_Fiele](https://avatars.discourse-cdn.com/v4/letter/s/67e7ee/32.png) [@Simon\_Fiele](https://forum.dynamobim.com/u/Simon_Fiele)\
**Post date:** [November 3, 2015, 5:15am UTC](https://forum.dynamobim.com/t/calculate-heating-load/2492/1 "2015-11-03T05:15:00Z")

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Hello

I want to calculate Heating Load with dynamo, but the units is wrong.

I use Watt, but when I have 1 watt in Revit I have 10,746 in Dynamo (some kind of unit)

Then I used dynamo to recalculate the unit in codeblock, but I do not get the exact value.

Picture show where I have 1000 watt, then I godt 999,992 watt in Dynamo. I want the excact value

I do not need the whole script to make the heating load calculation, just the right caculator for the units

![Capture](https://cdck-file-uploads-us1.s3.dualstack.us-west-2.amazonaws.com/flex022/uploads/dynamobim/original/2X/5/56453f2b6c8e4e18f9b9245a16d7ade185c0d219.jpg)

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<div class="post-metadata">

**Author:** ![Kulkul](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/kulkul/32/49801_2.png) [@Kulkul](https://forum.dynamobim.com/u/Kulkul)\
**Post date:** [November 4, 2015, 10:59pm UTC](https://forum.dynamobim.com/t/calculate-heating-load/2492/2 "2015-11-04T22:59:43Z")

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Hi Simon,

I suggest you to use Lunch Box “GetParameterValue” node. It gives actual units.

See here [http://dl1.joxi.net/drive/0012/2031/829423/151105/ba6cacefda.png](http://dl1.joxi.net/drive/0012/2031/829423/151105/ba6cacefda.png)