Quote:
It's not the heat that increases egg laying, it's the light, daylight or an ordinary light bulb. If you bought a read heat lamp (bulb) I doubt it will increase laying. If you have no window, how much ventilation do you have? And using a light to replace a window is not IMO a good idea; you need to be able to get fresh air as well as natural light in there, and they love to look out a window.
I have 1 foot deep and 12 feet long of ventilation near the top inside the garage. Our coop is built inside our garage and we do have more then enough ventilation. We can not cut windows on the side of the house. Having the coop inside the garage leaves us no choice for a window, so we put a light inside, we have electricity in the coop too. I love our coop. It's 12x4x8 inside fully insulated and 100% predator proof. Our run(22x5x5) is along side the house with a steel door. They get plenty of fresh air. I free range throughout the day as well. They use the 8 ft door vs a pop door also. During the day, the steel door is always open.
We don't want to increase laying, we just want normal winter laying. Also, the heat lamp is mostly intended to keep the water and our chickens from freezing. It's very cold here. We can have -20F actual temps for a week or so at a time. Burrrrr..........