Technical Information

Bathroom Zones

The diagrams and information below are a guide to Bathroom Zones as referred to in IP ratings of the Heating Elements section. Please refer to the latest edition of BS7871 to ensure conformity.

It is important to install an electric towel rail in the correct bathroom zone i.e. the zone referred to in the IP rating of the element. This is not an installation guide and reference should be made to the latest edition of the IEE wirings Regulations or a qualified electrician.

Zone 0 is inside the bath or shower tray itself. Any appliance used in this zone must be rated at least IP67 which is total immersion proof.

Zone 1 is the area above the bath or shower tray to a height of 2.25m from the floor. In this zone a minimum rating of IP44 is required and elements must also be protected by a 30mA residual current device (RCD) to protect the circuit.

The electrical connection to the power supply for these elements must be in Zones 2/3 of the bathroom in compliance with BS7671:2001 - IEE Wiring Regulations.

Zone 2 is an area stretching 0.6m outside the perimeter of the bath and to a height of 2.25m from the floor. In this zone an IP rating of at least IP44 is required.In addition it is good practice to consider the area around a washbasin, within a 60cm radius of any tap to be considered as zone 2.

For full details reference should be made to the latest copy of the IEE wiring regulations and all applicable British Standard Specifications - European norm.

Bathroom Zones

Heating Options

Ensure the towel rail of your choice is suited to the circuit available. Never install an item containing ferrous (steel) parts on an open circuit. If in doubt, ask!

Wherever possible Jumel towel rails are manufactured using dezincification resistant brass. However, it should be understood the term 'resistant' does not entirely preclude the possibility of dezincification occurring. If you intend to install the product on an open (direct) hot water circuit, make reference to your local water authority to ensure dezincification has not previously occurred.

Towel rails manufactured from brass tubing should not be installed on an open circuit if a water softener is present. Water analysis to determine the likelihood of dezincification is available at cost. Product compatibility is the responsibility of the installer. In aggressive water areas, or where water softeners are installed, dezincification resistant materials are available and can be specified for certain models. Please ask for an individual quotation.

Steel Rails - Must be installed in accordance with BS7593 where a corrosion inhibitor is used
Brass Rails - Caution where water softener is installed, as this could cause dezincification
(material is attacked ie. zinc eaten away by aggressive water)

Models suitable for indirect (closed) circuits only cannot be installed on an open circuit due to the item containing ferrous (steel) parts. Product compatibility is the responsibility of the installer.

Heating Only Systems

HEATING ONLY (HO) - Suitable for ALL circuits
For connection to either direct (open) or indirect (closed) central heating or hot water circuit

HEATING ONLY (HO) - Suitable for indirect (closed) circuits
Only For connection to an indirect (closed) central heating circuit ONLY. Cannot be installed on an open circuit due to the item containing ferrous (steel) parts.

Electric Only

A completely independent unit requiring only a fused spur electric connection in close proximity. Standard format for electric towel rails is fluid filled. Thermal transfer fluid is heated by an electric element located at the bottom of the towel rail. The element is a sealed cartridge and therefore can be easily changed in case of failure.

Electric Only

Also known as dual fuel or dual energy. Connected to a central heating circuit and including an electrical element which allows for operation in summer months when the central heating is NOT in use.