Why is my hose script not putting out a fire?

Hey guys, I have this really big problem with my hoses. They do not use objects, but particle streams. It is the parent of the tool, not the emitter. This is the code:

local touch = false

script.Parent.Touched:connect(function(hit)
    if not touch then
    touch = true
    if hit:FindFirstChild("Fire") then
        if (hit.Fire.Heat >= 0) then
            hit.Fire.Heat = hit.Fire.Heat - 7 
            touch = false
        else
            hit.Fire:Destroy()
            for i,v in pairs(hit:GetChildren()) do
                if v:IsA("ParticleEmitter") or v.Name == "FireLight" then
                    v:Destroy()
                    touch = false
                end
            end
        end
    end
    script.Parent:Destroy()
    end
end)
wait(0.3) 
script.Parent.BodyThrust:Destroy()
wait(0.7)
script.Parent:Destroy()