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What is hydronic radiant floor heating?

December 22, 2014

radiant_diagramHydronic radiant floor heating is a method of heating a home or other building by running recirculated hot water through tubing. The heat is conducted from the water in the tubes to the surface of your floor, which releases that heat into your home.  The tubing can be hidden in a conductive panel under your finished floors, embedded in a concrete foundation, or run under a subfloor through joists.  There are many options available when it comes to heating the water for a hydronic radiant floor heating system which include:

  • boiler
  • tankless hot water heater
  • traditional water heater
  • geothermal heat pump
  • solar thermal

When selecting the heat source for a hydronic radiant system, it’s important to consider the heat loss of the radiant zone, the flow rate required to satisfy the heat loss, and the correct equipment needed to make sure your system meets both current and future requirements.


Radiant floor heating is a superior way to heat any home.  Compared to forced hot air, hydronic radiant floor heating is more comfortable, more energy efficient, provides a healthier home environment, and is more aesthetically pleasing from a design perspective.


Jim Lavallee Plumbing
Serving Eastern Massachusetts and the Boston area
Phone: Toll-free (888) 884-4122


(original article)

New Construction

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  • Plan & spec
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  • Kitchens
  • Bathrooms
  • Basement


  • Forced hot water
  • Radiant heating
  • Hydro air