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#102029 - 09/30/04 08:40 AM Sauna Heaters
ernest Offline
Junior Member

Registered: 09/27/03
Posts: 1
Loc: Hamilton,ON,Canada
Hi,
Can somebody tell me where the rules are defined for installation of Sauna heaters in CEC? I know in most of the electrical codes RCD device with approximately 100mA is required for Sauna heaters(due to its inherent high leakage currents). But I don't see any such requirement stipulated in CEC. or Can we totally eliminate a GF breaker from the Sauna branch circuit?

Thanks in advance
_________________________
Ernie

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2014 / 2011 NEC & Related Books and Study Guides
#102030 - 09/30/04 01:47 PM Re: Sauna Heaters
Tony Moscioni Offline
Moderator

Registered: 05/15/01
Posts: 144
Loc: CANADA
Ernest,

It does not state in Section 62 of the CEC or in the CSA Standard that GFCI Protection is required.

But if the manufacturer recommends it, then one will have to be installed in the circuit.

CSA Standard: CAN/CSA-C22.2 No. 164-M91 (R1997)
Electric Sauna Heating Equipment

5.22 Installation Instructions

Each sauna heater shall be provided with clear and complete instructions for the installation and operation of the sauna heater. The instructions shall include the following:

(a) A complete electrical diagram, when accessories are included, showing the connections to the power supply and all temperature and other controls;

(b) Installation instructions for any accessory and other controls. Details for the location and protection of the temperature control sensing bulb;

(c) A statement that all wiring to the sauna heater and accessories shall be routed away from any direct radiation from the sauna heater;

(d) An indication that the sauna heaters shall not be subjected to water spray and that shower heads shall not be installed above the sauna heaters;

(e) A note to the effect that if the manually resettable temperature-limiting control trips frequently, a qualified serviceman should be contacted;

(f) A statement to read as follows:
IT IS UNLAWFUL TO INSTALL THIS UNIT WITHOUT FIRST OBTAINING A PERMIT FROM THE LOCAL ELECTRICAL INSPECTION AUTHORITY;

(g) Any other instructions that may be necessary for the installation and safe operation of the sauna heaters;

(h) Instructions for the construction, material, and location of the guardrail required by the marking of Clause 5.8; and

(i)Instructions for securing sauna heaters in the room, as required by Clause 4.4.6.


4.13 Overcurrent Protection

Where fuses are used for overcurrent protection of heater element circuits they shall be HRC Form I or time delay type marked "D", and the sauna heater shall be marked as specified in Clause 5.10.

Rule #62-102

Sauna heater means a device that is designed for heating air and that is installed permanently in a special room to produce a hot atmosphere with generally a relatively low humidity although brief excursions to relatively high humidity may take place.

(3) Each sauna heater shall be controlled by a thermostat or other temperature regulating device installed in accordance with the manufacturer's instructions.

(5) Each sauna heater shall be controlled by a timed cut-off switch having a maximum time setting of one hour with no override feature, which, if not forming part of the sauna heater or cabinet, shall be mounted on the outside wall of the room containing the sauna heater, and which will disconnect all ungrounded conductors in the circuit supplying the heater.

Rule 62-500

Heaters for Sauna Rooms (see Appendix B)

(1) Heaters for sauna rooms shall be marked as being suitable for the purpose.

(2) Sauna heaters shall be installed in rooms that are built in accordance with the nameplate size specifications and shall be fastened securely in place to ensure that the minimum safe clearances indicated on the nameplate are not reduced.

(3) Each sauna heater shall be controlled by a thermostat or other temperature regulating device installed in accordance with the manufacturer's instructions.

(4) Sauna heaters shall not be installed below shower heads or water spray devices.

(5) Each sauna heater shall be controlled by a timed cut-off switch having a maximum time setting of one hour with no override feature, which, if not forming part of the sauna heater or cabinet, shall be mounted on the outside wall of the room containing the sauna heater, and which will disconnect all ungrounded conductors in the circuit supplying the heater.



Intent for Rule 62-500.

We intend that the sauna heating unit be approved and the room be built in accordance with the manufacturer's specifications, which are to be permanently fastened to the unit. The requirements listed in this Rule are very explicit and it is important that they be followed.

For the safety of the occupants using the sauna, we intend that a timed cut-off switch having a maximum one-hour setting, with no override feature, be mounted on the outside wall of the sauna room to disconnect all ungrounded conductors supplying the sauna heater.

Safety of Household and Similar Electrical Appliances—Part 2: Particular Requirements for Electric Sauna Heating Appliances

62-500
Sauna heaters should be secured in place ensuring that the minimum clearances specified in the nameplate are not reduced. If the heater is provided with legs, they should not be removed in favour of other supports. Covering combustible surfaces with noncombustible material, such as metal tile or asbestos board, does not ensure safety from fire.
Sauna heaters marked “FOR INSTALLATION ON CONCRETE FLOORS ONLY” shall not be installed on combustible floors even if the floor is covered with ceramic tile, asbestos board, or other noncombustible material.
Equipment or material of other than an electrical nature should not be installed or placed so close to electrical equipment as to create a dangerous condition. Benches, shelves, guard rails, other structures, or obstructions should not be placed closer to the heating unit than is permitted for the clearances specified on the nameplate.
To properly control the maximum temperature in the room, the heat sensor for the temperature control should be located near the heater. A timer should be installed to turn off the heater after a predetermined or preset time.


Tony Moscioni
Electrical Inspector
Electrical Safety Authority

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