Tubing Length Formula:
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Definition: This calculator estimates the length of tubing needed for radiant floor heating systems based on floor area and tubing spacing.
Purpose: It helps HVAC professionals and DIYers determine how much tubing is required for radiant floor heating installations.
The calculator uses the formula:
Where:
Explanation: The floor area is divided by the tubing spacing to determine the total length of tubing needed to cover the entire area.
Details: Proper tubing length estimation ensures even heat distribution, system efficiency, and cost-effective material purchasing.
Tips: Enter the floor area in square meters and tubing spacing (default 0.15m). All values must be > 0.
Q1: What's the typical tubing spacing for radiant floors?
A: Standard spacing is 15-30cm (0.15-0.30m), with 15cm being common for high heat output areas.
Q2: Does this account for manifold connections?
A: No, add extra length (typically 2-3m per loop) for connections to the manifold.
Q3: Should I use the same spacing throughout?
A: You may want closer spacing in high heat-loss areas (like near exterior walls) and wider spacing in interior zones.
Q4: How do I find my floor area?
A: Multiply room length by width, or use floor plans if available.
Q5: Does this include waste or extra length?
A: No, consider adding 5-10% to the calculated length for project contingencies.