After getting an initial batch of six, I seem to be brooding 3 to 4 chicks every other year to keep my numbers up. I brood in the mudroom, in a dog crate with cardboard twisty-tied to the sides to keep bedding and heat in and cat paws out.
So like you I only need to raise the temperature over a fairly small area to warm a few chicks. You didn’t state the temperature of the area where you will place your brooder, so I don’t know by how much you will need to raise the temperature.
But though my mudroom is chilly overnight (obviously less so in May when I get my chicks than it is now) I find that a 60 W incandescent bulb in a cheap clamp-on holder gives me all the heat I need. Since I have several stashed away after being replaced with LED bulbs for household lighting use, they are effectively free and I have never been able to justify any “fancier” equipment for brooding.
So like you I only need to raise the temperature over a fairly small area to warm a few chicks. You didn’t state the temperature of the area where you will place your brooder, so I don’t know by how much you will need to raise the temperature.
But though my mudroom is chilly overnight (obviously less so in May when I get my chicks than it is now) I find that a 60 W incandescent bulb in a cheap clamp-on holder gives me all the heat I need. Since I have several stashed away after being replaced with LED bulbs for household lighting use, they are effectively free and I have never been able to justify any “fancier” equipment for brooding.