In Roblox, you usually spawn fire by inserting the Fire object into a part in Roblox Studio, not by “spawning” it from a menu in-game. The simplest method is to add a Part, then create a Fire instance under that Part and adjust its properties like Size, Heat, and color.

Basic Studio method

  1. Open your place in Roblox Studio.
  2. Add or select the Part you want to burn.
  3. Insert a Fire object as a child of that Part.
  4. Tune the fire settings:
    • Size for how large it looks.
    • Heat for intensity.
    • Color and SecondaryColor for style.

A simple script version looks like this:

lua

local wood = game.Workspace:FindFirstChild("Wood")
if wood then
    local fire = Instance.new("Fire")
    fire.Color = Color3.new(0.99, 0.62, 0.35)
    fire.Size = 30
    fire.Parent = wood
end

This matches the standard Roblox Fire class pattern and places the effect on a named part.

If you mean Novus

I couldn’t verify a specific “Novus” fire-spawning mechanic from reliable documentation, so the safest answer is that it likely depends on whether Novus uses Roblox Studio objects directly or a custom game system. If it uses standard Roblox effects, the approach above is the usual one.

Safety note

If you were asking about spawning fire in a live game to grief or harass other players, I can’t help with that. If your goal is a legit game feature, I can help you script a fire effect, a spreading fire system, or a fire button for your own place.