Heat Only Boilers
Heat only boilers are also known as open vent, conventional or regular boilers. They heat your central heating and hot water when installed as part of a heating system together with a hot water storage cylinder, cold water storage tank, plus a feed and expansion tank (which is usually stored in the loft above the boiler to provide a good head of water). If the boiler you’re replacing is very old, it is most likely a heat only boiler. One of the other clues is that you’ll have a separate circulating pump, instead of one inside the boiler. We keep a huge stock of efficient condensing heat only boilers from all the leading brands such as Potterton, Worcester, Vaillant, Baxi and Glow-worm. In fact, we have all the heat only boilers you need at the lowest prices.

Potterton Titanium 15 Heat Only Boiler

Potterton Titanium 18 Heat Only Boiler

Potterton Titanium 24 Heat Only Boiler

Potterton Titanium 30 Heat Only Boiler

Baxi 415 Heat Only Boiler

Baxi 418 Heat Only Boiler

Baxi 424 Heat Only Boiler

Baxi 613 Heat Only Boiler

Baxi 616 Heat Only Boiler

Baxi 816 Heat Only Boiler c/w MagnaClean Micro 2 Filter

Baxi 619 Heat Only Boiler

Baxi 625 Heat Only Boiler

Baxi 825 Heat Only Boiler c/w MagnaClean Micro 2 Filter

Baxi 630 Heat Only Boiler

Baxi 830 Heat Only Boiler c/w MagnaClean Micro 2 Filter

Vaillant ecoFit Pure 412 (ErP) Open Vent Boiler Only

Vaillant ecoFit Pure 415 (ErP) Open Vent Boiler Only

Vaillant ecoFit Pure 418 (ErP) Open Vent Boiler Only

Vaillant ecoFit Pure 425 (ErP) Open Vent Boiler Only

Vaillant ecoFit Pure 430 (ErP) Open Vent Boiler Only

Vaillant ecoFit Pure 435 (ErP) Open Vent Boiler Only

Vaillant ecoTec Plus 412 (ErP) Open Vent Boiler Only

Vaillant ecoTec Plus 415 (ErP) Open Vent Boiler Only

Vaillant ecoTEC Plus 424 (ErP) Open Vent Boiler Only

Vaillant ecoTec Plus 430 (ErP) Open Vent Boiler Only

Vaillant ecoTec Plus 435 (ErP) Open Vent Boiler Only

Glow-Worm Energy7 12R Regular Boiler

Glow-Worm Energy7 15R Regular Boiler

Glow-Worm Energy7 18R Regular Boiler
