We used a MHP in a cage in the coop for 15 chicks. It was 50 with a couple of dips into high 40s. We had a lot of straw and they had body heat and they were about 4 weeks old. They all could not be under the MHP at the same time but with that many chicks, all worked out.
Next year, I will have them in the coop at 2 weeks old. A number of members here, raise the chicks outdoors (brooder/coop) from day 3.
Next year, I will have them in the coop at 2 weeks old. A number of members here, raise the chicks outdoors (brooder/coop) from day 3.