Heater Calculator
Enter your room's dimensions to instantly see the heating power you need and the right Sunlike Tec model for it.
Room Parameters
Room Dimensions
Width (m)
Depth (m)
Height (m)
Calculated Volume: 54.0 m³
Insulation Coefficient (K)
1.5 W/m³K
Average insulation · Older building / standard glazing
Target Indoor Temp
Outdoor Design Temp
Temperature Difference (ΔT): 26 K
Usage Type
Calculation Result
Formula applied
P = 54.0 m³ × 1.5 W/m³K × 26 K
Required Heating Power
2.106 W
2.11 kW
Recommended Sunlike Tec Model
SL900 x 3 (2.700 W total)
About 69% less energy with Sunlike Tec · Kosack Report, TU Kaiserslautern 2009
This calculation is an estimate based on a standard heat-loss formula; the exact requirement can vary with your building's specifics. Contact us for a precise recommendation.