Can't find filling loop

[AI Plumber]

Can anyone explain the boiler and its parts ?

At first I saw a cictern tank on top of the cylinder and a gate valve which I thought was the inlet for f&e cictern so I shut it off and drained down the system. After finishing work on central heating I turned the gate valve back on and it wasn't filling up so I figured it was for the cold feed to cylinder. I thought there might be another f&e cictern somewhere but then I looked under the boiler and saw a filling loop so I filled up the system.

Does anyone know what type of boiler this is ? Or is it a boiler ? Looks hand made with components and doesn't have a flue.

 

[chris watkins]

Did you not notice the two 22mm F&R coming into the unit & the two going out?

If no flue & no large electrical supply to it what is the heat source for this boiler ?

 

[AI Plumber]

Here's another picture showing the pipes going in, and when I filled the system, it was filling with hot water.

 

[solutions]

Just had another thread just like this one the other day.

Another heat interface unit HIU.
Communal heating heat exchange system.

 

[solutions]

Have a look here and see if the same might relate

http://www.ukplumbersforums.co.uk/showthread.php?t=83087

 

[solutions]

http://www.cibsejournal.com/cpd/2011-03/

[DLMURL]http://www.cibsejournal.com/cpd/2011-03/images/fig-3-(240x376).png[/DLMURL]

[DLMURL]http://www.cibsejournal.com/cpd/2011-03/images/fig-2-(240x377).png[/DLMURL]

 

[PhoenixServices]

As above hiu. Basically a heat exchanger for hot water and pump and valves for heating. Common in blocks of flats.