Staple up applications require a higher fluid delivery temperature. Unlike concrete, the wooden subfloor will absorb less heat requiring a higher water delivery temperature to be effective in heating the space above.

With a smaller amount of thermal mass compared to concrete, temperature changes (cool down and warm up) take less time. This provides a quicker reaction time to changes in room temperatures. Fluid delivery temperature should not exceed the limits of flooring above the tubing. Damage to the flooring or the emitter itself can occur if temperatures are exceeding past limits.

Always check with flooring manufacturer for heating limits to prevent damage.

When using flooring that requires an epoxy adhesive the temperature of the floor should not exceed 85° F and no higher than 80° for engineered hardwood.