How to calculate electric heating sizes for a room
The success of Rointe electric heating products is due to correctly calculating the size of each product needed. That's why we've developed the Rointe Thermal Coefficient (RTC) to help increase efficiency and savings.
Our unique method means we can provide an estimated radiator size calculator, along with towel rails, for our customers free of charge.
What is the BTU?
We use the BTU for each climate zone to calculate the Rointe Thermal Coefficient, which determines the element size of each radiator for your room.
A British Thermal Unit (BTU) is a measure of heat output from a radiator. This is the measurement used to figure out how much energy is needed to heat (and cool) a room based on its size.
Simply put; the higher the BTU, the higher the energy output will be. How effective that is though depends on the size of a room and what lies behind the walls, floor and roof. That’s where the Rointe Thermal Coefficient comes into effect.
Rointe Thermal Coefficient
The RTC calculates the number of heating elements needed for a property, based on its square metres and geographic climate.
By using this calculation we can determine the appropriate radiator or towel rail size for the most balanced consumption.
When we use our radiator size calculator, we need to distinguish between m2 and m3:
· For ceilings with a height lower than 3 metres, we use the R.T.C. (m2).
· For ceilings with a height higher than 3 metres, we use the R.T.C. (m3).