Technical

Understanding Symbols

Brass Manufacture

DZR Brass

The highest quality brass available in a finish of your choice. Corrosion resistant and provides a superior plated finish.

30 Year Quality Assurance Guarantee

On our brass products showing this symbol.

Heating & Hot Water

Suitable for all heating and hot water systems.

Stainless Steel Manufacture

Stainless Steel

Giving an easy to clean finish that is resistant to corrosion and has a high heat output.

30 Year Quality Assurance Guarantee

On our stainless steel products showing this symbol.

Heating & Hot Water

Suitable for all heating and hot water systems.

Mild Steel Manufacture

Mild Steel

Quality mild steel available in chrome and painted finishes suitable for indirect/closed heating systems.

15 Year Quality Assurance Guarantee

On our mild steel products showing this symbol.

Heating Only

Suitable for closed indirect heating systems.

Aluminium Manufacture

Aluminium

Providing a quick heat up time thus allowing for greater efficiency with a low water content.

30 Year Quality Assurance Guarantee

On our aluminium products showing this symbol.

Heating & Hot Water

Suitable for all heating and hot water systems.

Additional Requirements

Electric Only

Can be specified where this symbol is displayed.

Electric Dryline

Can be specified where this symbol is displayed. Dryline technology, heating via a heater cable.

Heating and Electric

Can be specified where this symbol is displayed.

2 year quality assurance guarantee

On our products showing this symbol

RAL colours

Available in RAL colour Chart options, where this symbol is displayed.

Stock Information

Stocked Item

The ‘Tick’ symbol in the product specification tables denotes a stocked item.

Made To Order

The ‘Handprint’ symbol in the product specification tables denotes a made to order product.

Additional Production Process

The ‘Stopwatch’ denotes a stocked item that undergoes additional production processes to achieve chosen finishes.

BTU Calculator

IP Rating and Bathroom Zones

ZONE
0
ZONE
0
ZONE
1
ZONE
1
ZONE
2
ZONE
2
ZONE
2
ZONE
2
ZONE
2

Anywhere outside zones 0, 1, and 2. Where water jets are not used for cleaning purposes, the general rules BS7671 apply. * See note 1.
All final circuits require 30mA RCD protection.

  • In zones 1 and 2 if there is a likelihood of water jets being used for cleaning purposes a minimum of IPx5 is required.
  • Where ceiling heights exceed 2.25m, the zones are effectively up to 3m, beyond 3m the walls are out of scope.
  • Basins are not covered, however they are usually considered zone 2.
  • If the space underneath a bath cannot be accessed without tools that space is considered out of zone.
  • Information contained on this page is for guidance only. Please refer to current IEE Regulations or a qualified electrician.

IP Rating Guide

The IP (ingress protection) rating given to an enclosure, states the degree of protection it offers by means of two digits. A summary of these are detailed below. For more information please see European IEC 60509:1989, BS EN 60529:1992

First Digit

Protection against solid foreign objects and access to hazardous parts.

At the lowest of seven levels is 0, this means no protection is offered. At the highest level 6, there shall be no entry of dust particles.

No Protection

Protected against solid objects larger than 50mm e.g. accidental touch.

Protected against solid objects larger than 12.5mm e.g. fingers.

Protected against solid objects larger than 2.5mm e.g. tools and cables.

Protected against solid objects larger than 1mm.

Protected against dust (no harmful deposits).

Totally protected against dust.

No Protection

Protected against vertically falling drops of water e.g. condensation.

Protected against direct sprays of water up to 15° from the vertical. 2nd 0

Protected against direct sprays of water up to 60° from the vertical.

Protected against water splashes - limited ingress permitted.

Protected against low pressure jets of water - limited ingress permitted.

Protected against strong jets of water - limited ingress permitted.

Protected against temporary immersion in water(150mm and 1m.).

Protected against continuous submersion at a specified depth.

Second Digit

Protection against entrance of water on a progressive scale. At level 1 dripping water shall have no effect. At level 6 water from powerful jets against the enclosure shall have no effect.

The letter X can be used in place of the first digit or second digit to indicate that tests have not being carried out or are not applicable.

IEC 529, bs en 60529 does not apply to any risk of explosion or conditions such as humidity, corrosive gases, fungi or vermin. In certain cases equipment designed to be mounted in an enclosure will contribute towards the stated IP rating (e.g. Push buttons mounted in an enclosure). Different parts of enclosures can have different degrees of protection and still conform to the standard (e.g. Enclosures with pre-drilled conduit entry). All information strictly for guidance only, please refer to regulations and manufacturers for information if you are in any doubt.

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