Concrete Slab Radiant Floor Heating Layout

1 2 oxygen barrier pex is the most popular size used for radiant floor heating in both thick and thin slabs.

Concrete slab radiant floor heating layout.

Copper within con crete is highly susceptible to corrosion and a lifespan of 50 years for a radiant floor was considered exceptional. Many radiant floors most using copper tubing buried within concrete slabs were installed and used success fully in the 1960 s and 70 s. Check out our video how to install radiant floor heat tubing in a slab on grade and read this page for a full description. This size is adequate for all small to medium size jobs both in residential and commercial projects.

The workers in the photograph at page top where our concrete slab. This is about installing hydronic radiant floor heating in a slab floor system. Radiant heating system design or installation mistakes that must be avoided. But they all suffered from one primary problem longevity.

5 8 barrier pex can be used for larger projects where high btu load is present due to lack of proper insulation larger than normal slab thickness or special project considerations. From a radiant heating perspective it doesn t matter if the slab is actually at grade or is poured several feet below grade as part of a full foundation. Slab insulation methods calculating heat loss tubing options system options and much more all written in easy to understand language for the homeowner with pictures and diagrams. The system works via pex pipe a small pump a water heater and a thermostat.