Ricki Lake Being Sued For House Fire

According to the lawsuit filed by the owner of the home ... Lake was refilling a portable space heater when she spilled the oil on the hot heating coils -- and the oil burst into flames. The fire quickly ripped through the entire property.

In the lawsuit, filed Monday in L.A. County Superior Court, the owner, Hovsep Kousouyan, claims Lake spoke with emergency personnel who responded to the fire -- and she admitted the whole thing was her fault.