What is the correct pressure for a combi boiler?

What is the correct pressure for a combi boiler?

Your Combination boiler needs to be between an upper and lower pressure limit to operate safely. But what is the correct pressure?

The UK is still one of the strongest markets for new boilers in Europe and with over 1.6million boilers sold every year there is all the more reason to choose the best brand that suits your needs.

Mr Central Heating has all the best brands like Vaillant, Ideal, Potterton, Baxi and Vokera and sources all the best prices to give you the best deal. It is expensive to replace a boiler but actually it is very low cost and since you rely on it everyday and it provides something that you cannot do without, it is actually not a bad offer.

It is definitely inconvenient for a boiler to break or go wrong but with a new boiler it generally comes with a great reliability rate and warranty that covers it for its lifetime. Honestly boilers do not last as long as the old ones but in fact it suits the efficiency rating if you do change your boiler after ten years.

With the speed of technological change and new manufacturer techniques it is probably best to have the latest model. This applies to cars and as the environmental factors push the manufacturers to get smarter and better and we really want the least polluting cars, you could really say the same for boilers.

What does this all have to do with system pressure you may ask? Well, with increased reliability and more modern boilers like combination boilers and system boilers that use a sealed heating circuit to operate, it is really important to have the correct pressure. In fact probably the biggest call out for manufacturers and plumbers is incorrect or low pressure.

If you visit any manufacturers websites like Vaillant, Baxi, Ideal, Potterton or Vokera you will find really helpful how to guides and content around this problem. Combination boilers require pressure in the heating system in order to function.

Each manufacturer will have a different optimum pressure but the rule of thumb is generally 1.5 bar. This is performed using a filler loop and most boilers have a visible pressure gauge on the control panel of the boiler.

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