Ok, I understand now. Actually this may be something I have to do as I will have sows farrowing again probably around the first of the year or a bit after, will be cold here for sure. I will be curious to see what you come up with. I may have to copy some of you guys ideas. I have some open air horse stall I will probably move the sows in to farrow and I have electricity there so I could provide a light or heat source if needed. I will watch this thread for updates. Walter thanks for your ideas on different designs also.