Heater warning after fatal Vic home blaze

Fire authorities have urged people to keep an eye on their heaters after a portable one sparked a house fire in Melbourne's inner west in which a disabled woman died.

The 62-year-old's body was found in the upstairs bedroom of the West Footscray home early on Sunday, while a 69-year-old resident escaped the blaze with minor injuries.

The older woman is believed to have been the carer for the disabled woman.

An investigation into the blaze found it had been caused by a portable heater, which is believed to have been left too close to flammable items.

There were no working fire alarms in the home, the Metropolitan Fire Brigade said.

The findings have prompted the MFB to urge people to take care when using electrical applications and ensure they have smoke alarms installed.

"Heaters should be monitored at all times and kept at least a metre away from flammable items such as clothing or bedding," the MFB said in a statement.