A typical heating system in a home with insulated main floor, and un-insulated
basement and attic are considered in this paper. Using Newton’s cooling law, the
heating system is modeled by a system of linear ODEs. A certain condition is put on
the cooling coefficients in order to convert the system to one third order ODE.
Solving this equation for the temperature in the basement at any time can be used
to find temperature at the main floor and the attic. As a future work, the conditions
on the cooling coefficients will be under consideration in order to give a general
technique for any home heating systems.