| Andrews | www.andrewswaterheaters.co.uk |
| Ariston | www.ariston.co.uk |
| Copperform | www.copperform.co.uk |
| Dimplex | www.dimplex.co.uk |
| Heatrea Sadia | www.heatraesadia.com |
| Main | www.mainheating.co.uk |
| Redring | www.redring.co.uk |
| Santon | www.santon.co.uk |
| Telford | www.telford-group.com |
| Tribune | www.range-cylinders.co.uk |
| Vaillant | www.vaillant.co.uk |
| Zip | www.zipheaters.co.uk |
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