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temperature fluctuation/what kind of thermostat?

post #1 of 8
Thread Starter 
hi guys. made my first incubator. sorry it looks horrible big_smile.png
don't mind the digital thermometer, it reads later than the analog.
my thermostat starts the bulb (25 watts) to warm the incubator up to 99.5 F (37.5 C)
then wait for the temp to drop 94.1 F (34.5 C) before it lights again.

450

im really sorry. it's the best i can do. smile.pngsmile.pngsmile.png
450


now, how do i keep the temp stable at 99.5? or maybe 100.5 to 99.5?
the humidity reads 80 for now because of the rain and sudden sunshine.

AND BY THE WAY. what do you call this kind of thermostat so i can research about it more. it has a big switch connected to a small plastic box and has a foot-long probe.
thanks. smile.png

450
Edited by bluefeather2697 - 4/23/12 at 6:18am
post #2 of 8

Have you thought of placing the thermostat probe above the bulb, and/or trying a different wattage light. I use a 75 watt bulb for my cooler incubator. If placing the thermostat probe 2-3 inches above the bulb, and directly under the fan doesn't work, try using a different thermostat.

In the beginning there was nothing. God said, Let there be light! And there was light. There was still nothing, but you could see it a whole lot better. Ellen DeGeneres   
also//////// Y'all also need to check out my homemade cooler incubator, my homemade fridge-a-bator, and my cabinet incubator on my BYC page.

 

http://www.backyardchickens.com/a/homemade-cabinet-incubator

http://www.backya...

Reply

In the beginning there was nothing. God said, Let there be light! And there was light. There was still nothing, but you could see it a whole lot better. Ellen DeGeneres   
also//////// Y'all also need to check out my homemade cooler incubator, my homemade fridge-a-bator, and my cabinet incubator on my BYC page.

 

http://www.backyardchickens.com/a/homemade-cabinet-incubator

http://www.backya...

Reply
post #3 of 8

look like  a really coarse thermostat and your trying to control at low end of its range. My guess is thermostat too....cva34

post #4 of 8

Yeah, where did you get your thermostat. It looks like something from the U.K.

 

What was it's original use.

In the beginning there was nothing. God said, Let there be light! And there was light. There was still nothing, but you could see it a whole lot better. Ellen DeGeneres   
also//////// Y'all also need to check out my homemade cooler incubator, my homemade fridge-a-bator, and my cabinet incubator on my BYC page.

 

http://www.backyardchickens.com/a/homemade-cabinet-incubator

http://www.backya...

Reply

In the beginning there was nothing. God said, Let there be light! And there was light. There was still nothing, but you could see it a whole lot better. Ellen DeGeneres   
also//////// Y'all also need to check out my homemade cooler incubator, my homemade fridge-a-bator, and my cabinet incubator on my BYC page.

 

http://www.backyardchickens.com/a/homemade-cabinet-incubator

http://www.backya...

Reply
post #5 of 8

I just looked up your thermostat type, and go to google Images, and type in [thermostat "skeleton"]

In the beginning there was nothing. God said, Let there be light! And there was light. There was still nothing, but you could see it a whole lot better. Ellen DeGeneres   
also//////// Y'all also need to check out my homemade cooler incubator, my homemade fridge-a-bator, and my cabinet incubator on my BYC page.

 

http://www.backyardchickens.com/a/homemade-cabinet-incubator

http://www.backya...

Reply

In the beginning there was nothing. God said, Let there be light! And there was light. There was still nothing, but you could see it a whole lot better. Ellen DeGeneres   
also//////// Y'all also need to check out my homemade cooler incubator, my homemade fridge-a-bator, and my cabinet incubator on my BYC page.

 

http://www.backyardchickens.com/a/homemade-cabinet-incubator

http://www.backya...

Reply
post #6 of 8

I found that there was less fluctuastion the closer the thermostat was to the light bulb ( it caused the light to cycle on/off more) .  If It was futher away there was a larger temperature swing in my incubator.  I noticed this every time i moved something. like bumping stuff when taking out racking during lock down

post #7 of 8
Thread Starter 
i bought it from an automatic shop. they say it's used for food warmers, incubators and water heaters. just a cheap one.
the temp range now fluctuates from 95.5 to 98.5 after i adjusted it a bit. it's getting close.

but if it will just stay there. i'll buy a better one. smile.png

thanks. smile.png
post #8 of 8

Another thought--have you actually checked the temp and tracked the temp at the level the eggs are going??  That level may have less swing than the readouts you are currently seeing.

 

I like the idea of putting the probe close to the light bulb. Have you tested that theory?

NPIP Tested Clean

 

             Bourbon Red and Sweetgrass Turkeys

 

             Black Copper Marans, Buff Orpingtons and Speckled Sussex    

  

 

Grow where you are planted. --Unknown

Reply

NPIP Tested Clean

 

             Bourbon Red and Sweetgrass Turkeys

 

             Black Copper Marans, Buff Orpingtons and Speckled Sussex    

  

 

Grow where you are planted. --Unknown

Reply
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