"The horror [she] would have been experiencing is almost unimaginable," prosecutor Sandra Cupina said during sentencing.
The woman suffered burns to 46 per cent of her body, as well as broken bones and deep lacerations.
Some of her wounds were infected and infested with maggots.
When paramedics found her, she was semiconscious and "on the brink of death".
The woman, who cannot be identified for legal reasons, was placed in an induced coma and spent two months in hospital recovering.
She has had to learn to walk again.
"I have been disfigured both mentally and physically. It is something I would not wish on my worst enemies," she said in her victim impact statement to the court.