CFA crews responded to an out of control blaze at a Mooroolbark house on Sunday 27 February.
The house on Straun Avenue could be seen sending thick, black smoke into the air around 2.30pm.
With the help of Fire Rescue Victoria crews, 10 CFA vehicles were required to get the fire under control.
A warning was posted to the Vic Emergency app warning local residents of the presence of hazardous substances.
In social media posts, residents said the house was surrounded by rubbish and photos show a number of tents also on fire in the rear of the property.
Ambulance Victoria treated two people at the scene, with one man taken to Maroondah Hospital in a stable condition for further observation.
The fire was brought under control just after 3pm and was deemed safe just after 3.30pm.