Inanormallyinsulatedhouse,withaproperlyfunctioningunderfloorheatingsystem,thetemperatureofthefloorsurfaceisgenerally2°Chigherthantheroomtemperature.Inahotwaterunderfloorheatingsystem,theflowtemperatureisusually7–12°Chigherthanthefloors’surfacetemperatureandmusttherefore,neverexceed39°C.
What's a sentence that uses these characters?
In a normally insulated house, with a properly functioning underfloor heating system, the temperature of the floor surface is generally 2°C higher than the room temperature. In a hot water underfloor heating system, the flow temperature is usually 7–12°C higher than the floors’ surface temperature and must therefore, never exceed 39°C.