This property determines the color of the larger particles emitted by a Fire object. It is essentially the color of the outer portion of the flame.

In general, the cooler flames are on the outside of a fire. Therefore, fire looks more realistic if the outer portions are red or orange-yellow. A fire that is bright all throughout doesn't look very realistic, so avoid setting this property to yellow or white.

This property, much like ParticleEmitter.Enabled, determines whether flame particles are emitted. Any particles already emitted will continue to render until their lifetime expires.

Since all fire particles are destroyed when the Fire object's Parent is set to nil, this property is useful in allowing existing particles the opportunity to expire before destroying the Fire object altogether (see the code example below).

local Debris = game:GetService("Debris")

local function douseFlames(fire)
	fire.Enabled = false -- No more new particles
	Debris:AddItem(fire, 2) -- Remove the object after existing particles have expired
end

douseFlames(part.Fire)

This property determines how fast particles are emitted from the Fire object. It is limited to the range of -25 to 25 inclusive. Positive values are in the top (+Y) direction of the parent BasePart or Attachment, while negative values are in the downward (-Y) direction. It also affects the ParticleEmitter.Acceleration of the inner particles.

This property determines the color of the smaller particles emitted by a Fire object. It is essentially the color of the inner portion of the flame.

Note that the inner particles use a ParticleEmitter.LightEmission of 1, so darker colors will instead cause the particles to appear transparent, and black will stop rendering inner particles altogether.

This property determines the size of the flame particles. It must be in the range of 2 to 30. Unlike ParticleEmitter.Size, the actual size of the flames will not match 1:1 with the equivalent size in studs; it is somewhat smaller.

If you add a PointLight as a sibling to the Fire object to generate light, try setting the light's Brightness and Range proportional to this property so that larger flames produce more light.

A value between 0 and 1 than controls the speed of the particle effect. 1 runs at normal speed, 0.5 runs at half speed, and 0 freezes time.