Radiant Floor Cost Calculator

This calculator prices out a radiant floor heating system for a given floor area, choosing between an Electric Mat/Cable system and a Hydronic (Water) system, then layers in a thermostat allowance and a rough monthly operating cost. System Type is what actually drives the estimate the most: Hydronic material runs $14 per sq ft against Electric's $8, and Hydronic installation runs $10 per sq ft against Electric's $4, so switching System Type moves Total Installed Cost far more than any realistic change to Floor Area alone -- a full swing from Electric to Hydronic on the same footprint costs nearly double. Floor Area still matters and scales every line item, including thermostat count (one thermostat per 150 sq ft for electric mats, one per 300 sq ft for hydronic loops, always rounded up), but its effect on the total is smaller than the System Type choice.

Flooring Type -- tile/stone, hardwood, or laminate/LVP -- plays no role in Total Installed Cost at all; it only adjusts Monthly Operating Cost, since tile conducts heat most efficiently and laminate insulates the most, cutting into a hydronic or electric system's running cost. This is a planning estimate, not a contractor quote -- actual installed cost depends on subfloor prep, labor rates, and local permitting.