Energy Firstbox Uncased Primary Distribution Modules

Energy Firstbox Uncased Primary Dist.

Primary distribution module for under-boiler kit, complete with heat meter spacing and low loss header.Designed for connection into primary flow pipework to  add heat metering when used with Firstbox single distribution groups incorporating integral pumps. Supplied with space for a DN15 3/4” heat meter – see Accessories – with 3/4”M connections.

Technical Data

Please contact the office on 01993 824900 for technical details.



Can you advise which pipe goes where on an energy meter?
The heat meter (like a water meter) is located in the return line and the tee holder of the temperature probe is located in the flow line.

Can you tell me what the connection size for an energy meter is?
It varies by each energy meter.  You buy the meter based on DN size and match up to the tails (pipe union connections).  The connections on the body of the meter are always 'bigger' than the final connection to the pipe.  When you use the pipe union connections kit - e.g. a DN15 body has a 3/4" body connection - needs a 3/4"F x 1/2"M connection (02708098) - therefore if you want a 3/4" pipe connection, you need a 1" body DN20.