System Overview

Floor Design and Sizing

The Harvest Radiant system is considered a low-temperature radiant system. As such, there are a few practices that can help get the best performance out of a lower temperature radiant floor:

• Use longer loop length than typical to help achieve a low return temperature, e.g., 250-500 ft length.
• Use a “double back” layout, i.e. the warm supply pipe is always next to the cooler return pipe to achieve a uniform temperature across the floor

Optimal piping layout

The higher the radiative transfer capacity of the floor, the better system performance and efficiency will be. In addition, the calculated heating capacity of the floor should always exceed the design load of the building.

Calculate the heating capacity of the floor: Floor capacity = heat flux (BTU/sqft/hr) * heated floor area (sqft)

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Plumbing Overview

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Wiring Overview