import type { HeatTransferInput, HeatTransferResult } from './types.js';
/**
 * Heat Transfer Calculator
 *
 * Supports three modes of heat transfer:
 * - **Conduction** (Fourier's Law): Q = k × A × ΔT / L
 * - **Convection** (Newton's Law of Cooling): Q = h × A × ΔT
 * - **Radiation** (Stefan-Boltzmann Law): Q = ε × σ × A × (T_hot⁴ - T_cold⁴)
 *
 * All temperatures in °C internally converted to K for radiation.
 *
 * @throws {RangeError} Thermal conductivity must be positive
 * @throws {RangeError} Area must be positive
 * @throws {RangeError} Thickness must be positive
 * @throws {RangeError} Convection coefficient must be positive
 * @throws {RangeError} Emissivity must be between 0 and 1
 * @throws {RangeError} Absolute temperature must be positive
 * @param input - discriminated union by `mode`
 * @returns heat transfer rate and related quantities
 */
export declare function heatTransfer(input: HeatTransferInput): HeatTransferResult;
//# sourceMappingURL=heatTransfer.d.ts.map