The compact HRE OV boiler is a central-heating-only boiler for use in an open-vented system with a header tank. An ideal replacement for existing open-vent boilers, it is designed to supply your home with all the warmth you need. The constantly modulating fan automatically adjusts the capacity of the boiler to your requirements, making sure no valuable energy is wasted. A hot water storage cylinder can also be added, enabling the boiler to provide hot water too.

If an Intergas System Filter is fitted with your Intergas boiler, we’ll add two more years to the warranty!
Terms and conditions apply.

Smart in every sense

With the HRE OV high-efficiency boiler you are making a considerable saving on your energy consumption. A switch-mode power supply reduces the stand-by losses to almost zero, which means that while the boiler is waiting the call for heat, only a negligible amount of electricity is used. All Intergas HRE OV boilers have a SEDBUK A rating, the highest efficiency band available.

Extreme energy efficiency

Our revolutionary bithermic heat exchanger is in every Intergas boiler and is the component that guarantees extreme energy efficiency. Thanks to its intelligent design, there’s no need for a diverter valve (in combis), valve motor, auto air vent or secondary hot water plate heat exchanger, so all the parts that tend to stick, leak or let you down aren’t there. Made from aluminium, with two separate copper circuits, its large surface area and increased waterways ensure optimal heat transfer and minimal heat loss.

All our heat exchangers come with a 10-year warranty.