It's rather surreal looking out at night to see this golden dome in the yard. I purchased 4 heat lamps from Premier 1 this year. There are 2 inside there being used now with 250 watt bulbs. We have piglets due and it's been so cold I hooked them up for the first time. I keep them on the pigs side so the ever so curious goats can't get a hold of them. Many of you have seen these heat lamps, I am sure, in the Premier catalog but I have to say until you've seen them in person the catalog just doesn't do them justice. I was taken aback when they arrived by the sheer size of them. Very substantial and well made. It took me a bit of time to figure out how to open them to put the bulb in. They seem to have thought of everything when making them and they are about as animal proof as any heat lamp could be. I would never put a regular heat lamp out like this but these seem pretty safe.
I have been using them with a thermostatically controlled plug that turns them on when the temperature drops to 35 degree's and off when it gets up to 45 degree's. It works wonderfully. With the reflective insulation on the sides of the structure too it stays fairly warm inside considering how cold it's been.
Although it's been in the 20's a night the goats spend part of the night outside and if they are inside one of them usually is in the doorway with her head out. The pigs rarely leave the little cattle panel barn these days.
I also borrow the high / low thermometer I use in my incubutor at this time of year just to get an idea of how cold it is in their little home at night.