Radiant Floor Heating Calculator

Radiant Floor Heating

Calculate radiant floor heating requirements including tube spacing, water temperature, and BTU output per square foot for hydronic or electric radiant systems.

Floor Area (sq ft)

Room Heat Loss (BTU/sq ft/hr)

Floor Covering

System Type

Formula

Total BTU = Floor Area x Heat Loss Per Sq Ft; Water Temp = 85 + (Floor R-Value x 15) + (Heat Loss x 0.5); Tube Spacing = 12 in (low), 9 in (medium), 6 in (high heat loss); Tube Length = (Area / Spacing) x 12

Frequently Asked Questions

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