A secondary plate heat exchanger.
Combination boiler combi boiler central heating system diagram.
For central heating 2.
There is one small consideration.
Should anything happen to the boiler breakdown you would be left with no heating and hot water.
For central heating 2.
How a combi boiler works at least a modern combi boiler is.
Combi is short for combination.
A combi boiler system combines central heating and hot water within the same compact unit.
Mike the boilerman your gas safe registered boiler and central heating.
Central heating diagrams showing pipework layouts for the various types of heating system.
An automatic bypass valve is fitted inside most combi boilers by the manufacturer these days.
In direct contrast open vent also called regular standard or conventional boilers and system boilers heat water that s stored in a tank.
Combination boiler system diagram often referred to as a combi boiler this type of installation heats hot water as you need it without the need for a hot water storage tank.
So in places where space and hot water requirements are limited such as flats these can be very popular systems.
How a combi boiler system works.
No external pump no tanks no external expansion vessel no motorised valves and in many cases item 6 is not needed either.
They house two heat exchangers.
Combi system this diagram illustrates how simple the heating system connected to a combi boiler is.
A primary heat exchanger.
The diagram to the right shows how a combi boiler is usually installed.
They have two heat exchangers inside them.
The cold feed enters the boiler is heated in the heat exchanger and then passes out of the domestic hot water outlets when a hot tap is opened.
Fully pumped one pipe gravity combi etc.