One fire engine remains at the scene of the blaze.
Ten fire engines were initially called to the fire just before 6.10pm on August 13.
Crews are now searching the affected land for any remaining hotspots.
The fire service is no longer warning people in the area to keep their windows and doors closed.
Firefighters used hose reel jets to tackle the blaze.
The cause of the fire is unknown.
A spokesperson for Kent Fire and Rescue said: “Kent Fire and Rescue Service is currently attending a fire on Dartford Heath.
“Ten fire engines currently at the scene and crews are working hard to contain the fire.
“Firefighters are currently asking anyone who lives or works nearby to keep windows and doors closed as a precaution due to smoke coming from the incident.”
A statement issued by Kent Fire and Rescue at 11.45pm yesterday: “Two fire engines remain at the scene of a fire on Dartford Heath where approximately 10 hectares of land has been affected.
“Crews are making good progress and advice to keep windows and doors closed in the local area due to smoke is still currently in place.”
The latest Kent Fire and Rescue update, issued at 9.15am today (August 15), said: “One fire engine remains at the scene of the fire on Dartford Heath, and firefighters are working their way across the charred land in search of remaining hotspots to extinguish, to prevent the fire from reigniting.”
Have you got a story for us? You can contact us here.
Sign up to our newsletters to get updates sent straight to your inbox.