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Problem with Radiant Heating System
Hi all. New here to this forum, but hoping someone can help. We recently had a two story ski house built with a very open concept on each floor. We had hydronic radiant heating put in throughout the main floor (single zone), with the basement (first floor concrete slab) fitted with baseboard heat. Because we wanted a open concept, the entire main floor was framed with engineered wooden trusses that essentially create one large enclosed cavity between the basement ceiling and main floor. The ceiling in the basement is drywall, and the main floor is plywood subfloor with an engineered hardwood flooring on top of that. The radiant tubing heats the entire cavity, but because the the drywall radiates more easily, the first floor is always 4-6 degrees warmer than the main floor (even without the baseboard heat on). The builder says he has built his last 10-12 houses in this fashion and has not heard of this being an issue before. He's been great to work with and wants to solve it for us. He thinks the only real solution is to rip down the the basement ceiling, insulate, and put it all back together. The other potential solution we considered is to cut floor vents into the main floor to allow the trapped hot air to vent up to the main floor. This would be a much simpler solution, but we're both skeptical it would solve the issue. I don't need it to be perfect, but would like to substantially reduce the delta T between the two floors. Any other thoughts/ideas would be appreciated. Thanks.