How to keep the coop warm?

[shineandrise]

It totally depends on where you live if your winters get below freezing point. But you definitely want a dry coop. I always use a heat lamp here (the coldest it gets usually is like 10 degrees) with a frame to make sure that nothing catches on fire. When outside starts getting colder, start checking inside your coop to see the temp. You can check out TSC for a heat lamp.

 

[aart]

It totally depends on where you live if your winters get below freezing point. But you definitely want a dry coop. I always use a heat lamp here (the coldest it gets usually is like 10 degrees) with a frame to make sure that nothing catches on fire. When outside starts getting colder, start checking inside your coop to see the temp. You can check out TSC for a heat lamp.

Heat lamps are very dangerous, and not needed unless your ambient temps are well below zero for extended periods.

With adequate ventilation, inside the coop should be about the same temp and humidity as outside the coop. They will be fine at colder temps, unless you have tiny seramas or frizzles.
Is this your first winter?
First winter can sure be nervous making, but remember... they are wearing down coats.

 

[ChickenCanoe]

It totally depends on where you live if your winters get below freezing point. But you definitely want a dry coop. I always use a heat lamp here (the coldest it gets usually is like 10 degrees) with a frame to make sure that nothing catches on fire. When outside starts getting colder, start checking inside your coop to see the temp. You can check out TSC for a heat lamp.

You can do as you wish but chickens don't need heat at those temps. It regularly gets to zero here and has been down to -19 yet I've never provided heat and I have heat loving Mediterranean breeds. Windows wide open with a fan blowing fresh air in.
IMO, the cost of running an unneeded heat lamp negates any benefit of keeping chickens.
One 250Watt heat lamp costs about $20 a month to run.
It also doesn't heat the building.