If a duct-mounted electric heater is to be installed and it is discovered that the heater is too long to fit inside the duct (the duct is 10 inches high and 14 inches wide and the heater is 9¹/₂ inches high and 18 inches long), what can the technician do to properly complete the installation?

Question

Quizplus · Accepted Answer

The best choice in this scenario is to return the heater to the supply house and obtain the correct size heater. Installing the heater at an angle or cutting a slot in the duct could compromise performance and potentially cause safety issues. Cutting the ends of the coils off the heater and increasing the fan speed is not a viable solution in this case.

If a Duct-Mounted Electric Heater Is to Be Installed and It