[deadwrong]

hey. new to the forum. i read somewhere that the circuit to the furnace has to be exclusive to the furnace only, no other devices allowed. the existing layout has a 14/2 armored flex cable from the panel to the furnace with a branch off to a single pole on/off switch. the switch leg is just your everyday non metallic clad type cable. should this branch line be clad too? i'd like to know whether the setup meets code. i'm in Ontario Canada.

 

[joed]

Canadain code for heating. Ontario should be the same or very close.

Heating Equipment
26-800 Scope
Rules 26-802 to 26-808 apply to circuits supplying power for the operation and control of non-portable heating equipment that uses solid, liquid, or gaseous fuel.
26-802 Mechanical protection of conductors
All branch circuit or tap conductors within 1.5 m from the floor shall be adequately protected from mechanical injury.
26-804 Fuel burner safety controls (see Appendix B)
Fuel burner safety controls shall be installed in accordance with the requirements of CSA C22.2 No. 3.
26-806 Heating equipment rated 117 kW and less (see Appendix B)
(1) Except as permitted by Subrule (3), all electric power for the heating unit and associated equipment operating in connection with it shall be obtained from a single-branch circuit that shall be used for no other purpose.
(2) For the purpose of this Rule, circulating pumps and similar equipment need not be considered as associated equipment, provided that such equipment is not essential for the safe operation of the heating unit.
(3) Subrule (1) does not apply to a water heater using a gaseous fuel.
(4) The branch circuit shall be permitted to be tapped as necessary to supply the various pieces of associated equipment, but there shall be no overcurrent protection supplied in the tap to any piece of associated
equipment the operation of which is essential to the proper operation of the heating unit, unless the control equipment is of such a nature that the heating unit will be shut down if the associated equipment fails to
function due to the operation of the overcurrent device.
(5) Suitable disconnecting means shall be provided for the branch circuit.
(6) The disconnecting means shall be permitted to be a branch circuit breaker at the distribution panelboard, provided that the panelboard is located between the furnace and the point of entry to the area where the
furnace is located.
(7) Where a separate switch is required due to the unsuitable location of the branch circuit breaker, it shall (a) not be located on the furnace nor in a location that can be reached only by passing close to the furnace; and
(b) be marked to indicate the equipment it controls.
26-808 Heating equipment rated at more than 117 kW
(1) All electric power for the heating unit and associated equipment operating in connection with it shall be obtained from a single feeder or branch circuit that shall not be used for other purposes.
(2) A suitable disconnecting means shall be provided for the feeder or branch circuit

 

[deadwrong]

Canadain code for heating. Ontario should be the same or very close.

from the looks of the legal gobbledeegook supplied, i'm good. the circuit is above 1.5m from the floor (through the main floor joists above basement level installation). actually, it looks like no part of the circuit had to be clad at all. guess it's better to be safe than sorry. thanks joed.