Skip to main content
D
Rank 2
Dave-Nice-VIII
Rank 2
October 28, 2025

Can I replace storage heaters with heat batteries?

  • October 28, 2025
  • 4 replies
  • 152 views

This may be a bit off topic for this thread, but researching alternative low rate tariffs, if found my self thinking that it might (should?) be possible to replace traditional brick-filled storage heaters with batteries. After all if it works for cars and trains, why not houses?

    Pinned Reply By Ben_OVO

    Morning ​@Dave-Nice-VIII,

     

    As advised on your previous post, I’ve made this question a standalone topic.

     

    You should find some useful insights in this previous topic:

     

     

    ​@M.isterW do you still have heat batteries in place in your property?

    4 replies

    Ben_OVO
    Community Manager
    Ben_OVO
    Community Manager
    October 29, 2025

    Morning ​@Dave-Nice-VIII,

     

    As advised on your previous post, I’ve made this question a standalone topic.

     

    You should find some useful insights in this previous topic:

     

     

    ​@M.isterW do you still have heat batteries in place in your property?

    Powered by the Sun
    M.isterW
    Rank 6
    M.isterW
    Rank 6
    October 29, 2025

    I don't have heat batteries any more. They were installed as part of a trial system. We had the option of removing them when the trial ended, which we opted for.

     

    To answer the question, heat batteries work in a different way to storage heaters but can be used for home heating. The Tepeo ZEB is a system that's currently available. It has a heat battery that heats hot water in the same way as a combi boiler. It uses machine learning to work out how to make the best of your TOU tariff and any solar PV. If you're going from storage heaters to something like the Tepeo you need to install a full wet heating system so it isn't a simple change.

    1992 4 bed detached house. Solar PV + battery, Zappi EV charger, Mitsubishi Ecodan ASHP and i-life2 fan assisted radiators.... No gas 😊
    juliamc
    Rank 20
    juliamc
    Rank 20
    October 29, 2025

    Ah. Did you mean heat batteries ​@Dave-Nice-VIII or batteries storing electricity? 
     

    D
    Rank 2
    Dave-Nice-VIIIAuthor
    Rank 2
    October 29, 2025

    I was thinking of batteries storing charge  for slow release, in the way brick filled heaters do. 

    Terms & ConditionsAccessibility statement

    OVO Energy Ltd, Floor 5, Crescent, Temple Back, Redcliffe, BS1 6EZ, (Company no. 06890795) registered in England and Wales.

    OVO (S) Gas Limited is registered in England and Wales (Company No. 02716495) at Floor 5, Crescent, Temple Back, Redcliffe, BS1 6EZ.

    OVO (S) Gas Limited is part of OVO Group Ltd