If the question is referring to the cabin heater - it is located within the HVAC box mounted on the passenger compartment side of the firewall, behind the dash, generally in the area immediately behind the glovebox.
Under the dash on the passenger side mounted on the firewall inside the vehicle.
heater coil is good conductor of electricity
The heater coil is located behind the dash board. You will have to remove the dashboard to get at the heater coil
Usually cant fix a heater coil. It is replaced as a unit and usually requires large amounts of the dash to come out. Very time consuming. That is why it usaully costs so much.
Clarification of terminology- Heater core not heater coil. And Yes there is a very good chance that it may be leaking.
The heater coil and a heater core is the same thing. Hot water circulates from the engine and through the heater core then back to engine generating heat for your heater system.
heater coil is good conductor of electricity
Inside the distributor with the ignition coil, cap and rotor
nichrome
That's good your coil isn't on fire.Get a Honda service manual.
The heater core is located on the passenger side, inside the car, under the dash, mounted next to the firewall. Look under the hood and you will see the inlet & outlet heater hoses entering the firewall. On the other side of the firewall is the heater core.
The heater resistor coil is located on the blower motor on the 2006 T300 Kenworth.