Katie Tangey, 27, died after becoming trapped inside a three-storey townhouse in Truganina in Melbourne's west on Thursday morning.
The Hoppers Crossing woman, who was on Friday identified as a popular burlesque performer, called emergency services for help but did not survive the blaze.
The burlesque community has remembered Ms Tangey, who performed under the name Vivien May-Royale, in tributes on social media.
"Our hearts are breaking and a very big hole will be felt in our industry," The Apprentease Victoria wrote on Facebook.
"Vale Vivien May-Royale, our hearts go out to your family and we will continue to celebrate you and your sparkly life."
Melbourne media and production company 3 Fates Media said Ms Tangey's passing was "incomprehensible".
"A beautiful woman has left this earthly plane far too soon," it said on Facebook.
"The grief we all feel for our sister Katie Lee (Vivian May-Royale) and her loving family rests heavy on all our hearts but we remember her now and always as a bright, shining star."
Ms Tangey's death is being treated as a homicide after two people were seen getting out of a car and pouring accelerant inside the house before it was engulfed in flames, Detective Inspector Chris Murray said.
"This individual is completely innocent and should not have died," he told reporters on Thursday.
"We have no history on this individual, nor the family."
Ms Tangey had been house-sitting at the property for her brother while he was on his honeymoon.
A dog is unaccounted for but the detective said he did not expect the pet had survived.
Police believe the offenders had targeted the wrong address.
"She's been subjected to the most appalling, despicable act one could imagine," Det Insp Murray said.
Police patrols of the area will be increased, but there is no safety alert to the wider community.
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