My CH system is 9 years old, it has an MHS condensing boiler.
The boiler is serviced annually by an industrial engineer experienced with the installation/maintenance of this type of MHS boiler.
There are 22 rads plus towel rail. The bathroom ladder towel rail on first floor continuously gathers 'air'.
The 4 rads on the second floor do not gather air nor does any other rad to any great extent.
There are 2 air release valves fitted in pipework at floor level on second floor.
The newly replaced expansion tank holds the system to a minimum 0.5 bar, this pressure rises to 2 bar when heating.
There is no obvious water loss and 2 tubes of Fernox were added 3 months ago.
There is always quite a gurgle at the boiler when the boiler starts and water begins circulating.
I have no idea where this 'air' is coming from but wonder if I could fit an automatic release valve to the towel rail to avoid the regular venting of trapped air?
Other comments about how/why/what to do are welcome.
Thanks for reading this.
The boiler is serviced annually by an industrial engineer experienced with the installation/maintenance of this type of MHS boiler.
There are 22 rads plus towel rail. The bathroom ladder towel rail on first floor continuously gathers 'air'.
The 4 rads on the second floor do not gather air nor does any other rad to any great extent.
There are 2 air release valves fitted in pipework at floor level on second floor.
The newly replaced expansion tank holds the system to a minimum 0.5 bar, this pressure rises to 2 bar when heating.
There is no obvious water loss and 2 tubes of Fernox were added 3 months ago.
There is always quite a gurgle at the boiler when the boiler starts and water begins circulating.
I have no idea where this 'air' is coming from but wonder if I could fit an automatic release valve to the towel rail to avoid the regular venting of trapped air?
Other comments about how/why/what to do are welcome.
Thanks for reading this.