What type of waterer do you have set up? If you are keeping it in the coop, you want a more closed system as something like a heated dog bowl waterer will add a lot of moisture to the coop which you certainly don't want.I definitely do not want them to stress and will let the light be what it is without adding additional. The heater for the water will be inside the coop to keep it protected from the elements. I agree they are animals and just want to keep them happy.
This is what I made. The bucket is food grade and cost less than $4 and the bag of 12 horizontal nipples I got off Amazon for $11. I did add some Teflon tape to the threads. You just drill 11/32" hole in the bucket and thread in the nipple. It keeps the water perfectly clean inside the coop. I just place the lid loosely on the top. My chickens don't stay in the coop other than for sleeping, egg laying and getting a drink so I've not had any problem with them perching and pooping on the lid. I bought a used thermostatically controlled bird bath heater that is safe for contact with plastic that I will put in it for the winter. You can also use a low watt aquarium heater that is secured inside a metal cage to keep it from touching the bucket to keep the water from freezing. This is just one closed system, easy to maintain winter water option for those who have access to electricity in their coops.
We are glad you joined this flock!
Nice to have you here! Adding some bigger tree branches or logs to roost on, a cabbage or ear of corn or apple on a string, chicken swing etc to the run will provide some entertainment for your flock
For winter - I usually cover the sides of the coop with thick clear plastic leaving a few inches along the top open for good ventilation. It allows light to come in, wind and snow out. I also rake a really thick layer of dry leaves in the run late fall, it gives the girls something to scratch around in and the leaves break down completely by spring. Make sure you don’t close the coop up too tightly, you want good ventilation but no draft on the birds. Moisture and cold can cause frostbite.

Try it out before you ‘need’ it so you know what to expect. I also ended up with a bird bath heater if needed. For the most part I use those black rubber bowls (in the horse section) and I change water a couple of times a day when it freezes. Coop is close enough to the house and I work from home. The ice is easy enough to get out of the bowl, if a frozen block you can flip the bowl over on the ground and stomp on the bottom....