The exhaust gas losses represent heat carried away by hot exhaust gases. It is calculated from the delivered heat and the fraction of unavailable heat.

\begin{equation}\label{eq:energy-input-exhaust-gas-total-heat-loss-cpp} Q_{loss} = Q_{delivered} \cdot \frac{100 - AH}{AH}\end{equation}

Symbols

\(Q_{loss}\)	Exhaust gas losses \([\unit{ \btu\per\hour}]\)
\(Q_{delivered}\)	Heat delivered \([\unit{ \btu\per\hour}]\)
\(AH\)	Available heat percent \([\unit{ \percent}]\)
\(100\)	Total heat percentage \([\unit{ \percent}]\)