As used in this chapter, the following terms shall have the meanings indicated:
Equipment approved by a nationally recognized authority.
Any liquid used as fuel and having a flash point not less than 110° F.
Any device designed and arranged for the purpose of burning or preparing to burn fuel oil, as defined herein, and having a tank or container with a capacity of more than 20 gallons connected thereto.
All equipment connected to an off-heating burner and located within the building, including internal and external supply of storage tanks and provisions for filing and venting same, piping, wiring and all accessories.