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Advice for replacement hot water cylinder

  • 06-07-2015 1:48pm
    #1
    mp31
    Registered Users, Registered Users 2 Posts: 815 ✭✭✭


    Hi Folks,

    I'm looking to replace the current vented hot water cylinder (lagged 36" x 15") with a larger new foam insulated 42" x 15" cylinder and would like some advice with the following:
    - Grade 2 or Grade 3 - is it worth the extra cost for a grade 2?
    - Is it possible to get more than 50mm insulation - is it worthwhile in terms of energy savings?
    - Rapid recovery - how many internal coils should a cylinder have as a minimum
    - Reputable brand - are the some better than others (if so can you recommend a few)
    - Warranty - 2 years seems to be limit for copper. Is it worth trying to get a cylinder with a longer warranty?
    - Size of pipe fittings - the house hot press is plumbed with 22mm qualplex & copper - will this be a problem or is it easy to convert between the two.

    Any advice welcome.


Comments

  • #2
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,883 ✭✭✭✭Dtp1979


    50mm is plenty of cover.
    Get a dual coil cylinder and link the coils so it heats much faster.
    Coils are generally 1" anyway. Grade 2 if you can afford it.
    Or go the stainless steel route either. But if you do you can't use softened water in them or well water


  • #3
    roy rodgers
    Registered Users, Registered Users 2 Posts: 1,492 ✭✭✭roy rodgers


    Rapid recovery all the way. There does be about 8 or 9 coils of copper inside the cylinder it would heat that cylinder from cold in about 20 to 30 mins.
    I have been using joule cylinders for the last while and find them very good.
    50mm insulation is more than enough


  • #4
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,883 ✭✭✭✭Dtp1979


    roy rodgers wrote: »
    Rapid recovery all the way. There does be about 8 or 9 coils of copper inside the cylinder it would heat that cylinder from cold in about 20 to 30 mins.
    I have been using joule cylinders for the last while and find them very good.
    50mm insulation is more than enough

    +1 on joule stainless steel cylinders. Copper, not a hope, from my experience


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