Hi and thanks for your question -  these units are designed for outside installation and have an all-weather protective enclosure. The units will operate between -29°C and +50°C.
The engine also has 'High Temperature Shutdown' functionality in extreme conditions to prevent unit damage due to overheating.
We have supplied many of these generators to all parts of South Australia with no problems during the summer heat waves. Many thousands have been also installed in hot US areas such as California, Nevada and Texas.
We would have no hesitation in recommending these units for home power backup in South Australia. Many thanks