How many vent holes do I need?

[handshigh]

Hi I have built my first incubator and so I don't want to kill any ducklings was hoping someone with knowledge would tell me if I have enough air holes. I have two bottom front one tip left on lid. I have two plug so can plug some if I need to or make more I guess.
I will put up some pics (if I can) and hope you can direct me... thanks Jon

 

[funkychickenmom]

the incubator I bought had four air holes as well as the two holes that are plugged

 

[handshigh]

the incubator I bought had four air holes as well as the two holes that are plugged

Thanks for the reply.
How big is it ? Is it fan forced? Where are the holes placed and which ones are plugged? Thanks I just needed a little more info. Cheers jon

 

[funkychickenmom]

I suppose it depends on how you space the holes I would do a trial run to see how it holds humidity I have attached a picture of the incubator that I have the holes are in the center of the lid

 

[funkychickenmom]

mind you it is not a good pic It is kind of blurry

 

[handshigh]

OK thanks for that.

 

[cmom]

I have a few holes in mine but if I need to close them off, I put some tape over the holes.