The heat delivered is the fraction of total input heat that remains after exhaust gas losses, based on the available heat percentage.

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

Symbols

\(Q_{delivered}\)	Heat delivered \([\unit{ \btu\per\hour}]\)
\(Q_{input}\)	Total heat input \([\unit{ \btu\per\hour}]\)
\(AH\)	Available heat percent \([\unit{ \percent}]\)
\(100\)	Percentage conversion factor \([\unit{ \percent}]\)