Hello, We are the parents of 18 hens, all about 9 months old. We live in New Jersey. It's been really cold and often wet here for the past few weeks. We've had daytime temps in the thirties with night temps in the teens with several temps in the 20's day and single digits at night. Also, along with this fabulous weather ( I hate the cold!) we have had some serious wind chills. We try to free range our hens every day. Well, yesterday, I noticed that almost all of our RIR's (4), and at least 2 of our Buff Orpingtons have some degree of frost bite on their combs . We also have 5 Dominique hens that are moulting and seem to be having trouble keeping warm. I have read and re-read posts on here about the pros and cons of heating coops. I have also read that in order to keep the frostbite from worsening in the chickens they should be removed from the coop and put in a warm place. Some have said that they keep them in their garage, which must be heated as our garage isn't and water freezes in the hose in there and I am sure that delicate comb,wattle tissue would also freeze. I have also read of some that bring their chickens into their homes. I'm not sure that I would want to bring 6 chickens into my home, even if I didn't have 2 very curious cats just waiting to have a good close look-see at the chickens. The only alternative that I can see is to heat the coop. I just don't know what to do. The coop gets frequent cleanings, no poop moisture build up from that. And our coop isn't air tight but we decided to install a vent in the soffit just to make sure that there was adequate ventilation in the coop. We spent most of the evening last night (until 10pm to be exact) covering the chicken run in tarp and wrapping the sides with 4mil vapor barrier plastic to cut down on the chances that they will get wet and freeze afterward and to reduce the effects of wind chill. My husband read about a DIY water heater involving a 40w bulb and a cinder block (he made this) which keeps the water (also kept outside in run) from freezing. Although it still froze when it got down to 9 at night last week. Any thoughts? Recommendations? Thanks!