Baxi 600 Heat 

A system boiler has all the main components of the heating system within it, allowing a neat and quick installation. The boiler heats water stored in a cylinder or tank, delivering hot water when required and is particularly beneficial in properties that have a high demand for hot water.

You can have your boiler installed safely in most rooms. However, you do need to consider the Building Regulations.

A condensing boiler is a boiler that recaptures and reuses the heat from combustion gases that would normally be lost through the flue. There are three main types of condensing boiler: combi, system, and heat only boilers

Typically, your boiler should be set to at least 65 degrees Celsius to prevent bacteria growing in the water and maintaining comfort.