Having a domestic heating and hot water boiler is a great privilege, but when it comes to making the decision which type to choose one gets taken aback. Read on to select the right type for your home that will definitely suit all your technical needs. We’ll tell you why it’s better to give preference to combis, explain their principles of operation, their main advantages and disadvantages, why they are believed to be the most energy-efficient and etc. But, first, let’s define the term ‘condensing combi boiler’.
The principles of conventional boilers operation lie in burning fuel in a combustion chamber. The chamber itself is surrounded by a water jacket in which water is first heated and then put to circulation around the heating system. Unfortunately, not all of the heat produced is used to heat water, because much of it is wasted to the atmosphere. Unlike a non-condensing boiler, a condensing one is a high efficiency device that recycles and abstracts heat from exhaust gases. A conventional boiler is always less efficient than a condensing one, due to the latter’s more efficient and larger heat exchanger, which also speaks for its being environmentally friendly.
There are three types of condensing boilers available:
A condensing combination boiler is combined central heating and a water heat boiler. Unlike traditional central heating boilers, whose role is to heat up water stored in a separate cylinder, a combi doesn’t produce stored hot water, but rather continuous and unlimited amount of hot water on demand. Besides that, a central heating system with a combination boiler is cheaper than traditional one, however, cheaper doesn’t mean inferior, as combis have many advantages:
What concerns disadvantages of combi boilers, there are mainly two of them:
So, let’s explain once again why condensing combi boilers should be given preference to rather than regular home heating systems: these compact and easily-serviced units combine energy-saving properties with a simple structure and convenient operation, thus ensuring efficient exploitation of energy. Choose wisely!