If you plan on transforming your outdated boiler system with a central heating system that has a better efficiency then you very likely already aware that this boiler can help save a significant amount on your energy charges. Some older equipment installed in the houses have been known to consume large levels of energy, which is something we can no longer afford to squander as supplies run out and the premium increases. 

A central heating system extracts heat from the exhaust gases produced during the combustion process that is often lost through the chimney. When you find a high-efficiency central heaters, it is also very important that you ensure that the system operates at maximum efficiency. 

One important factor that you should consider while hunting for the right devices is efficiency. The modern system provides a much higher efficiency than the lowest set-class efficiency. 

If the main goal is greater efficiency then stay away from the boiler which tends not come with a control unit. Another thing to consider would be the material of the heat exchanger is constructed from. To make the most of your choice, choose a central heating system has a heat exchanger made of stainless steel for a long life.