A water heater is installed in an attic. The access opening to the attic is 20 inches by 24 inches. Is this opening size compliant for servicing and replacement of the water heater?

• No, because the opening height is less than 30 inches.
• Yes, because the area is 480 square inches which is sufficient.
• Yes, because it is larger than the water heater dimensions.
• No, because the opening width is less than 22 inches.