I totally want to add radiant heated floors to my deck. My husband and I worked strenuous to attach a wood deck to our home. Since we have a basement, the first floor of our home is up in the air, and we needed to set up supports for a floating deck! The whole process was genuinely strenuous, plus it was worrisome if my husband and I could get the deck to hold all our weight! But we did it. The only concern is that, due to safety regulations, we had to put in railing. The rail is several feet high and makes it difficult to shovel snow. In Winter, snow stacks up on the deck and has to be removed. It cannot handle all that added weight. We have to shovel many pounds of snow over a several foot high deck. What I want to do is add heated flooring to the deck. I am not sure how a Heating, Ventilation and A/C supplier can do this, but I think it is probably possible! Heating, Ventilation and A/C companies have put hydronic heating into some driveways. Homeowners use this kind of heating system as a snowmelt system. If they can do a cement or blacktop driveway, why not heating installation on a wooden deck? My husband says the radiant heated floors should go inside the house. All of us would get the most enjoyment there, but I am willing to stick with my ancient gas furnace a for few more years not to have to shovel snow. I always think I am going to have a heart attack when shoveling.