Your browser isn't supported
It looks like you're using an old web browser. To get the most out of the site and to ensure guides display correctly, we suggest upgrading your browser now. Download the latest:

Welcome to the MSE Forums

We're home to a fantastic community of MoneySavers but anyone can post. Please exercise caution & report spam, illegal, offensive or libellous posts/messages: click "report" or email forumteam@.

    • danrv
    • By danrv 4th Jul 18, 11:59 AM
    • 38Posts
    • 5Thanks
    Old Economy 10 system help
    • #1
    • 4th Jul 18, 11:59 AM
    Old Economy 10 system help 4th Jul 18 at 11:59 AM
    I have just moved into a 3 bed semi detached property which has an electric warm air ducted heating system on Economy 10.
    Its from the 1970s and probably quite efficient but am thinking that NOBODY would be running anything like this these days.
    The Unidare 10Kw R10 unit is huge (H130cm W60cm) weighs 75kg, has its own cupboard and is wired into the E10 timer. The off peak times are 10.00pm-8.00am BST which makes sense for this type of storage heater as it doesnt need a top up in the evening.
    Water heating is seperate immersion tank which I could have timed to operate off peak.

    I would like to update to a more modern system but options are limited. No mains gas and quite a small garden for oil tank.
    Heat pump/wet system worth considering but not sure how hot it would heat the water in really cold weather.
    I dont need to heat the whole house, maybe one or two rooms at a time. Routine probably does suit storage heating more than electric rads but central storage units such as this are no longer made. Storage heaters/tariffs do seem to be gradually on the way out too.

    Theres no shortage of electric rads available and this would be an easy install. I have done extensive reading on these and they would be neat, individually controllable via WiFi with no maintenance costs. Would need to switch to standard tariff.
    Only downside I can see is high running cost.
    Sort of stuck really.
    Last edited by danrv; 04-07-2018 at 12:43 PM.
Page 3
  • E.ON Company Representative: Malc
    E.ON Economy 10 Meter
    The central storage unit is off at the mains now but when on it stays warm all the time. Being a large storage heater, it holds the heat very well between charges.
    I suppose it doesnít matter when it charges as long as it does so automatically at the off peak time.
    Thanks for the help.
    Originally posted by danrv
    You're welcome danrv. Happy to help.

    ďOfficial Company Representative
    I am an official company representative of E.ON. MSE has given permission for me to post in response to queries about the company, so that I can help solve issues. You can see my name on the companies with permission to post list. I am not allowed to tout for business at all. If you believe I am please report it to This does NOT imply any form of approval of my company or its products by MSE"
    • danrv
    • By danrv 13th Aug 18, 3:03 PM
    • 38 Posts
    • 5 Thanks
    Thanks for the photo.
    The digital bit will have its peak/off-peak rate changes controlled by radio signal. However, the time that the heating charges up may still be controlled separately by the mechanical side. If that is the case, there's the chance it would not be synchronised with the cheap rate, with the clocking being wrong as you identified.
    Originally posted by coffeehound
    Yes, I see now. The two units probably arent linked so the mechanical timer may need to be set to coincide with the off peak times programmed into the digital meter.
    Although, there is a mechanical click at 3.10pm so somethings happening.

    Also, Im not sure if the Economy 10 is just for the heating circuit or all electrics.
    The white switch on the left in this pic is just for the Electricaire charging circuit. The onboard fan still works when this switch is off.
    The brown box is mains.
    The switch board above is all other circuits including the hot water immersion.

    Last edited by danrv; 13-08-2018 at 3:44 PM.
    • danrv
    • By danrv 14th Aug 18, 11:00 AM
    • 38 Posts
    • 5 Thanks
    Its ok. Off peak is for everything, not just for heating.
    Checked by turning kettle on and looking at which set of numbers changed on the meter.
Welcome to our new Forum!

Our aim is to save you money quickly and easily. We hope you like it!

Forum Team Contact us

Live Stats

104Posts Today

1,537Users online

Martin's Twitter
  • Lovely package on #newsnight just now about Brexit hitchhiking, livened up what has been not the most exciting show.

  • Is this is a serious tweet or a joke? Why did I mention he was a cyclist - because he was a cyclist. Eh?

  • How awful Mark. This is why those people who take risks on the road, have to realise while they think they're gamb?

  • Follow Martin