Just found this heated cat house for $45 on Amazon
I bought one 4 years ago and paid nearly double that. It comes with a heat pad on the bottom too that can be taken out and used elsewhere too if needed. The one I bought has held up well. I do find that it's best when you have it under a porch or covered deck or add a cover to keep the rain out. The exit and entrance are quite large so rain will get inside. I think they also sell flaps now, but my ferals would never use a flap!
I bought one 4 years ago and paid nearly double that. It comes with a heat pad on the bottom too that can be taken out and used elsewhere too if needed. The one I bought has held up well. I do find that it's best when you have it under a porch or covered deck or add a cover to keep the rain out. The exit and entrance are quite large so rain will get inside. I think they also sell flaps now, but my ferals would never use a flap!