# Calculating heat energy

Discussion in 'Coop & Run - Design, Construction, & Maintenance' started by r709shackleford, Dec 19, 2012.

1. ### r709shacklefordIn the Brooder

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Nov 11, 2012
Hi,
Heat is a big concern in cold climates, and many times I have seen the figure of 10 watts per chicken posted on the forum. It is accepted/assumed that 10 watts of power is how much an average adult chicken produces.

My question:
1. How many watts of does a bantam chicken produce? Would it be 5 because an adult bantam is about half the size of a normal chicken?
2. How many watts does a duck produce?
3. And really tricky:...How is the 10 watts per chicken calculated? Or who knows the scientific study that came up with that data.
Just curious about #3. I'm only after 1&2 for my coop purposes.

Tnx

2. ### HazardIn the Brooder

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Dec 16, 2010
MASS
What the heck are you talking about?

Watts and Chickens? Watts is a unit of measure for electricity.

I guess I gotta go to Google on this one....

3. ### HazardIn the Brooder

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Dec 16, 2010
MASS
Ha! Ok, I see what your doing. You have assessed the BTU output of a chicken and are trying to translate that to a respective heat source output in your coop.

I guess in Alaska you need to think about that kind of stuff.

Sorry, no help to you, but enjoy the free bump!

4. ### RoxannemcSongster

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Mar 30, 2012
SE Missouri
Well 10 watts seems would be like 7 chickens would be 70 watts right? Dont over think it.
So how many more watts do you need in the bulb you use to make them comfortable?.
Thing is doesnt seem to take into account how cold it is outside and then INSIDE your coop without ANY heat. or with the 70 watts from 7 chickens and say a 60 watt bulb also
. Might just birng it to zero if it way below or up to 80 if its warm.
Think you just need a thermometer in there tell how warm it is and how you want it .... trial and error.(I never heard of this watt thing either. I think its just a way to let you know they put out SOME heat themselves so you dont need too much ...except maybe in someplace REALLY cold! like you are.Good luck!.
.

5. ### CoopChick719Songster

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Sep 20, 2012
Maine
Thought you might find this BYC thread interesting--started by a fellow Alaskan in response to someone Florida.
Think it's too cold for your chickens? Think again... (https://www.backyardchickens.com/t/421122/think-its-too-cold-for-your-chickens-think-again) Best Wishes from Maine!

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Sep 20, 2012
Maine

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Nov 11, 2012