Heat Transfer Principles

Fourier's Law:

Heat transfer through solid materials:

• • q = Heat transfer rate (W)
• • k = Thermal conductivity (W/mK)
• • A = Cross-sectional area (m²)
• • dT/dx = Temperature gradient (K/m)

99.7% Conversion Rate:

• •Direct electrical to thermal conversion
• •Minimal parasitic losses (<0.3%)
• •Optimized surface emissivity (0.95)
• •Perfect wavelength targeting (8-15μm)

How PowerBoard Optimises Efficiency

Radiant vs Convective Heat

Convective systems heat air, air that leaks out every time a door opens. Infrared heats the building fabric and occupants directly, meaning far less energy is wasted on air movement and losses through draughts.

• No warm-up lag, comfort in seconds
• Heat stored in walls and floors persists longer
• Ideal perceived warmth at lower air temperatures

Smart Scheduling Multiplies Savings

Because infrared responds instantly, precise scheduling eliminates pre-heating waste entirely. A thermostat with 30-minute scheduling windows can cut consumption by 20-35% compared to always-on systems.

• Works with any smart thermostat
• Per-room zone scheduling
• Pairs with solar export schedules

See the Full Heating Guide

Learn how infrared heating works, what it costs to run, and how many panels you need.