Characteristics
The COIL - KP with a fan is a heating convector designed for dry interiors with a heating output higher than 2.3 kW for a 1.5 m long unit. It is intended for installation into window sills and is available in beech or oak without a wood surface finish.

Dimensions
The convector has a total width of 272 mm, a construction height of 135 mm including the window sill, and a length ranging from 900 to 1500 mm.

Usage
This convector is suitable for all types of windows with a minimum sill depth of 250 mm.

Temperature Equation
The heat transfer rate (Q) is calculated using the formula: Q = QN * (tw - tA)^m / 50, where QN is the nominal heat transfer rate for a temperature difference of 50 ºC, tw is the mean heating water temperature, tA is the mean air temperature, and m is the temperature exponent (1.0365).

Heat Transfer Rate
The document provides detailed tables showing the heat transfer rates at various mean air and water temperatures, and at different convector lengths (900 mm, 1000 mm, 1250 mm, 1500 mm) and fan speeds (minimum, medium, maximum). These tables help in determining the appropriate settings for specific heating requirements.