Shock arrestor / mini expansion vessel

[Scott_D]

Do you fit them when fitting a combi?
What type?
Mechanical shock arrestor or mini expansion vessel with shreader valve?
Do you service them annually?

 

[ShaunCorbs]

yes

min expansion

yes doesnt take much to check / service then

 

[king of pipes]

Yes mate it's a requirement on most combi boilers with plastic hydroblocks now, I have fitted larger ones if space permits does need checking on a service 😉 cheers kop