Posting a message to the forum will remove the above advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Checkout our Plumbers Insurance area - heavily discounted Public Liability Insurance and Van Insurance specifically designed for plumbers.

Discuss Long term noise levels Worcester Bosch 28CDi vs 30i in the Plumbing Forum area at

  1. MRH2

    MRH2 New Member


    Choosing a new replacement Worcester Bosch combi boiler - both are about the same price.

    Anyone have experience of what the noise levels are like - the WB website says 52 decibels for the small one and 50 decibels for the larger - but what are they like in real life over the longer term?
    About the same?
    Do the (assuming more compact parts) in the 28CDi get louder more often for example?
    Perhaps there are more prominent tones in the smaller one?

    Thanks in advance for your help!
    Cheers :)
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    TBH there about the same Both good boilers think the 28 cdi compact has slightly better hot water flow rate
    • Like Like x 1
  3. Gasmk1

    Gasmk1 GSR

    vaillants have won awards for being quietest on the market.
  4. scott_d

    scott_d Plumber GSR Top Contributor!!

    Have you got room for the 29 CDI classic
    • Like Like x 1
  5. hammers4spanner

    hammers4spanner Plumber GSR

    Also won awards for being the most unreliable
    • Like Like x 1
    • Disagree Disagree x 1
  6. MRH2

    MRH2 New Member

    lol please no flame war - i'm down to those 2 models of WB due to chosen supplier and availability.
Similar Threads - Long term noise Forum Date
Washing machine drainage flooding back, nightmare, long horizontal run with no vent. Plumbing Forum Apr 1, 2019
Private Gas Forum - Long Time Waiting Gas Safe Register Forum - Public Forum Apr 1, 2019

Users found this page by searching for:

  1. worcester bosch boiler noisy

Users found this page by searching for:

  1. worcester bosch boiler noisy