I just last year started ordering day olds. The first thing I learned is that it's so easy to ad a couple more chicks to the order. 
At first, I built a brooder as tall as it was wide.
Now I realize the mistake I made. Both times I brooded chicks in it, one or 2 developed respiratory disease. This is because I was lacking ventilation, but I had drafts.
My second brooder was a shipping box, about 6 feet long and 1.5 feet tall. This one doesn't look as tidy, but it has good ventilation. There are cracks in between the wood, but I haven't had any problems with drafts. The left heat lamp is exactly 36 degrees Celsius, which is recommended for poults. The one on the right is around 29 or 30 degrees, which is a great area for the 25 chicks to get away from the warmer heat for the turkeys.
At least in the farm stores where I live, they sell 3 different types of heat lamp bulbs. The Little Giant bulbs are the brightest and warmest, as you see on the left lamp in the picture. The one on the right is a Satco brand bulb, which is helpful for a dimmer, but still warm area.
The white bulbs are not my first choice, as they are as bright as daylight. The red lamps are fairly bright, but not so much that it would affect when the chicks sleep. They are very quiet in the night, and many are still sleeping soundly when I come out at around 8:00.

At first, I built a brooder as tall as it was wide.

My second brooder was a shipping box, about 6 feet long and 1.5 feet tall. This one doesn't look as tidy, but it has good ventilation. There are cracks in between the wood, but I haven't had any problems with drafts. The left heat lamp is exactly 36 degrees Celsius, which is recommended for poults. The one on the right is around 29 or 30 degrees, which is a great area for the 25 chicks to get away from the warmer heat for the turkeys.
At least in the farm stores where I live, they sell 3 different types of heat lamp bulbs. The Little Giant bulbs are the brightest and warmest, as you see on the left lamp in the picture. The one on the right is a Satco brand bulb, which is helpful for a dimmer, but still warm area.
The white bulbs are not my first choice, as they are as bright as daylight. The red lamps are fairly bright, but not so much that it would affect when the chicks sleep. They are very quiet in the night, and many are still sleeping soundly when I come out at around 8:00.