Approved portable oil-fueled heaters must adhere to the following requirements:

(1) Approved portable oil-fueled heaters must have labeling affixed thereto such as to caution and inform concerning:

a. Provision of an adequate source of ventilation when the heater is in operation;

b. Use of only suitable fuel for the heater;

c. Proper manner of refueling;

d. Proper placement and handling of the heater when in operation; and

e. Proper procedures for lighting, flame regulation and extinguishing the heater.

(2) Approved portable oil-fueled heaters must be packaged with instructions such as to inform concerning proper maintenance and operation.

(3) Approved portable oil-fueled heaters must be constructed with a low center of gravity and minimum tipping angle of 33 degrees from the vertical with an empty reservoir.

(4) Approved portable oil-fueled heaters must have an automatic safety shut-off device or inherent design feature which eliminates fire hazards in the event of tipover and otherwise conform with the standards set forth in National Fire Protection Association (NFPA) No. 31.

(5) Approved portable oil-fueled heaters must not produce carbon monoxide at rates which create a hazard when operated as intended and instructed.

63 Del. Laws, c. 117, § ?6;