Water volume and expansion

[bonesy60]

I have a customer that runs a snooker club and his prv keeps going on his boiler the internal expansion vessel on his Baxi 80e is just not big enough but how do i calculate the amount of water in the system I have listed below the approx pipe runs and rads cheers Ian.


132 foot 28mm pipe
195 foot 22mm pipe
144 foot 15mm pipe

13 1800 by 600 double rads.

 

[Renewable M]

best book ever, CIBSE domestic heating design guide. pipe volumes, exp vessel sizing, the works.

best £23 you will ever spend, and a little bed time reading into the bargain!

 

[bonesy60]

Page 79 16.12 just looked up and have the very book on the shelf in the office thanks for reminding me Ian.

 

[Renewable M]

my pleasure matey.