Tag: PEX

Introduction to Thermally Active Building Systems

It’s called Thermally Active Building Systems (TABS) and it may be one of the most cost-effective and energy-efficient heating and cooling systems that you never heard of.  Think about the concept of a radiant floor. PEX piping is embedded in the floor to heat (and sometimes cool) by radiation and some convection.  TABS utilizes PEX pipe too,…




The Three Different Types of PEX Tubing

PEX is becoming a popular product used in various piping applications.  If one asks around, “What is PEX?”, the most common short answer you will receive is, “it’s a plastic”.  It is true to say that it is a plastic, but that is a broad term and very misleading when comparing other industry materials.  The chemical structure and synthesis of all…




How Radiant Floor Cooling Works

THE KEY POINTS 1. Radiant cooling only has the ability to handle sensible load.  The latent load still needs to be addressed on the air side. 2. The chilled water must remain above the dewpoint to prevent condensation.  Typical supply/return water temp 58 F/63 F. 3. The higher the sensible load present, the more effective…