Hydronic Radiant Floor Heating
Under Floor Hot Water Heating and Radiant Heat Systems





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Hydronic Radiant Floor Heating Systems

Hydronic under floor heating is the most popular form of radiant heat, mainly because it has been around the longest. This form of heating was first used by the Romans, but there have been significant developments since. In the most recent hydronic systems, pex radiant tubing has been installed in a concrete mass called Gypsum Concrete or "Gypcrete". This method works very well in most applications, but there have been developments in the installation process of hydronic under floor heating that make it easier to install for certain situations. This new development is known as a low mass or modular board, underlayment system. Rather than embedding the hot water tubing in concrete, the pex tubing is laid in the grooves of pre-cut, wood panels. This new method is ideal for remodeling and most new construction projects.






Warmtrax represents both types of hydronic heating systems. Our goal is to match your individual project with the best system at the best price. There isn't a single system out there that is an ideal fit for every project, but there is an ideal system for every project. Also, because of our relationship with the manufacturers, we can guarantee the lowest price on the highest quality systems available.



The InfloorBoard hydronic heating systems uses this latest low mass, radiant heating technology. The InfloorBoard system is comprised of three grooved 5/8" thick aluminum clad wood composite panels that are ready to accommodate 3/8" PEX tubing. Immediately before application of finished flooring goods, InfloorBoard is glued then screwed (or stapled) to a standard subfloor in a pattern to accommodate a tubing layout for a particular space. Finished flooring goods may then be applied over the InfloorBoard as required.



Advantages of InfloorBoard Hydronic Heating Systems

Cost Friendly - InfloorBoard avoids joist upsizing, double plating and hardwood nailing strips associated with gypsum-based concrete radiant heating systems It also eliminates substantial drying costs required by moisture-laden concrete and gypcrete.

Flooring Friendly - The modular board provides a quality flat surface for all types of flooring including hardwood, laminate and engineered wood, tile, stone, carpet, and vinyl. Also, your flooring won't be exposed to moisture that is found in gypcrete, which can affect some types of materials.

Low Profile - InfloorBoard has a very small profile making it ideal for retrofit or remodeling applications.

Superior Responsiveness - With an aluminum top layer, InfloorBoard is many times more responsive than a cementatious thermal mass, thus providing quick heat up, avoidance of over heating and greater zone control.

Efficiency - With low mass and a super conductive aluminum surface, InfloorBoard can operate at lower temperatures than conventional cementatious thermal mass assemblies, thus providing greater system efficiency.

Lightweight - InfloorBoard is very lightweight (5 times lighter than concrete), which can be a significant factor in raised floor spanning calculations.

Conventional Construction - InfloorBoard is installed within the natural flow of a construction projecting using conventional practices and conventional tools.

Scheduling - InfloorBoard can be stored on site in a dry place for immediate installation, rather than scheduling for a gypsum/concrete sub contractor.

Green Product - InfloorBoard is constructed on non-virgin wood, and is fully recyclable.




Hydronic radiant heating is the most comfortable and efficient way to heat your home or building with numerous construction benefits and unsurpassed flexibility in zoning. For many years typical applications for radiant systems involved embedding tubing in concrete slabs or pouring “lightweight concrete” over tubing stapled to sub-floors. The lack of good alternatives to these types of systems permitted designers to overlook the limitations and disadvantages of concrete systems.


InfloorBoard is designed for the application of hydronic radiant tubing over a variety of construction types. Thermal board may be used in new construction and is advantageous in the growing retrofit market. While only adding 5/8” to the existing floor height, InfloorBoard provides a superior performing radiant heating system. Application of the system is made easy because only three types of pieces are required for installation.


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