Heat

NotReplicated

This item is not replicated across Roblox’s server/client boundary.

Property of: Fire

Value Type: float

Description:

The Heat property determines how fast particles are emit from the Fire object. It is limited to the range [-25, 25]. Positive values are in the top (+Y) direction of the parent BasePart or Attachment. It also affects the ParticleEmitter/Acceleration of the inner particles. Below, you can see the effects of higher heat on the velocity/acceleration of the flame particles (left has Heat = 9, right has Heat = 18).

Two torches - the left has Heat = 9 and the right has Heat = 18

Code Samples

Lighting Torches

This code sample adds Fire to all BasePart in the Workspace named “Torch”.

			
				Lighting Torches

				Expected Output
			
				Expand
				
			for _, child in pairs(workspace:GetChildren()) do
	if child.Name == "Torch" and child:IsA("BasePart") then
		local fire = Instance.new("Fire")
		fire.Heat = 10
		fire.Color = child.Color
		fire.SecondaryColor = Color3.new(1, 1, 1) -- White
		fire.Size = math.max(child.Size.X, child.Size.Z) -- Pick the larger of the two dimensions
		fire.Parent = child
	end
end
		
			When run, parts in the workspace named "Torch" should each have a Fire object parented to them. The fire should be about the size of the part, and about the same color too.
		
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