The VLo Econna-12 Joisted Floor System is an optimised hydronic heating system to install with battened or joisted floors. Warmup's VLo Econna-12 is an upgrade of our classic Econna Joisted Floor System. It has been specifically designed for use over both battened and joisted floors, leaving the void between them free for insulation material and other services. Its low-profile design makes it the perfect choice to bring radiant warmth to period home renovation projects. The Econna-12's energy-sa
