malc - eon:

Thanks for the feedback. I *think* you are saying that in the case of Heatwise plus E7, the night low rate period would be the Heatwise 5 hours not the E7 7 hours.

E7 plus Heatwise would give all non-heating circuits lower rate for 7 hours at night at the expense of all non-heating circuits being charged for the rest of the day at the E7 day rate which is higher than the standard day rate.

Difficult to see that would benefit many customers unless they had very high non-heating use during the E7 night period only. Possibly true once upon a time but modern appliances are much more efficient now.

It's a strange combination IMHO, because it links the "comfort or convenience" aspects of Heatwise with the "inconvenience" of having washing machines, tumble dryers, dishwashers etc only working at night.

Hi Jalexa

As Mynewt says, Heatwise is a different tariff to Economy 10 albeit with a lot of similarities. Both are designed for customers with storage and water heating.

Whereas Economy 10 is widely available throughout the country, Heatwise is restricted to the East Midlands region.

As I have said previously, I am no expert on the technicalities of Heatwise but I have spoken to our metering people about this set up.

There is a unit which sits next to the meter. This controls the Heatwise part of the set up in the way Mynewt has described. The heating/water circuitry at the property needs to be wired into the Heatwise section through a consumer unit.

This controls the times the heating/water are operational and charges as per the times I have posted previously. All other electrical usage (lights, appliances, etc) continue to go through the standard circuitry and are charged independently at the normal prices, either single rate or Economy 7.

I hope my limited technical knowledge makes this a little clearer but let me know if I can help further.

Malc

There's a difference between Economy 10 and Heatwise, not much but a difference.

Economy 10 generally gave 7 hours between midnight and 7am and a single 3 hour boost throughout the day to be used at the customer's disrection. Whereas Heatwise as has been documented has a more regimented timeframe for the energy usage.

The difference in wiring is basically a set of "timeswitches". In very simplistic terms there'll be a set of these switches on the heating elements switching heating to off peak at the pre-defined times, while all other electricicty goes through the normal circuitry, as well as the standard timeswitch switching all energy to off-peak at midnight and back again at 7am. (I wish you could draw diagrams on here at times).

malc - eon:

5 hours at night between 12am and 7am.

Too add to my recent reply to Simona's post, the thing I find baffling about Heatwise and E7 together is that Heatwise (among other time periods) provides lower rate heating for "5 hours between 12am and 7am" and E7 provides 7 hours lower rate heating between (typically and variably) 23:00 and 08:30. I know that additionally E7 provides all electricty at the lower rate during that period, but in relation to the heating supply which tariff (Heatwise or E7) has precedence? If E7, then the heater supply would be available for 12 hours per day in total. That's great in one sense but modern storage heaters are designed for a 7 hour charge.

If the Heatwise times have precedence then E7 only provides lower cost non heating supply for 7 hours at the cost of higher than standard rate for 17 hours per day. On the face of it not a very good deal and smart for Simona to get rid of it.

Have I got that right?

Simona1404:

It makes more sense to me now ;)

Well I wish I could say the same. I hate these badly documented proprietory tariffs. Something is troubling me. Hopefully malc - eon will get back and correct me, maybe tomorrow or next week now.

My somewhat simplistic understanding is that Heatwise is E.ON's (formerly Powergen's) version of something that is generically called E10 elsewhere. Usually more suited to electric boiler wet heating systems than modern storage heaters which are designed for 7 hours charge. What I do not understand is how an installation can be Heatwise and E7 at the same time (unless you had a Heatwise ("E10") installation (wiring and metering) and also an entirely separate E7 installation (wiring and metering).

Sorry I have a nagging doubt that if its a "free" tariff only change something is going to be charged differently. As long as you understand what that's fine.

hi everyone

thank you for all your replies

It makes more sense to me now ;)

Just my tariff was changed from economy 7 tarrif to standard rate. there wasnt any meter change as they would charge me £50 for removing heatwise part. As i have been told I could either have Economy 7 with heatwise plan or Standard with heatwise plan. They dont need to change meter for this as Malc said they just change the tarrif in the system.

So i hope everything is ok now and will not cause any trouble for me :)

Thanks again

Simona

Hi Jalexa

I, too, am no expert on Heatwise metering; so I have spoken to the section who deal with these matters.

I am not sure from Simona's post whether the meter has been changed or not. It could be we have simply changed the tariff on our system for single rate billing. This is quite possible and does not require a meter change. If this is the case, then the wiring in the property will not have been affected.

If the Economy 7 meter has been changed to single rate but the Heatwise part has been left in place then our engineer should have wired the new meter to the existing unit. This also will not affect the previous set up.

However, if the entire metering set up has been changed then Simona will need to have the water/heating checked over by an independent electrician. This tends to be the case with new builds as the design of Heatwise has recently been changed.

As I have posted above, if in doubt, always ask an independent electrician to check it out.

Malc

malc - eon:

The Heatwise part of your metering sits alongside the standard meter, regardless of whether this is single rate or Economy 7.

Your water and heating will be wired into the Heatwise part of the meter. This will continue to give you 10 hours of off peak electricity at the following times.

3 hours in the afternoon between 1pm and 4.30pm.

2 hours in the evening between 5.30pm and 10pm

5 hours at night between 12am and 7am.

Units used during these times by your storage heaters/water immersion will continue to be charged at the lower rates shown on your bill as afternoon and evening.

Now you have had the Economy 7 removed, all other units used at night for things like lighting, TV or any other domestic appliance will be charged at standard daily rates.

I'm not an expert on the very secretive world of Heatwise and similar products. However I would have expected storage heaters to be wired into a separate fuseboard which was only energised during the E7 economy hours. Given that E7 has been removed how and when will the storage heater fuseboard be energised?

Not totally sure what Simona wants to achieve and not totally convinced that the storage heaters will continue to work without the assistance and advice of an electrician.

Hopefully will be able to confirm that all will be OK and its just my lack of understanding of Heatwise.

In short you'll still have cheaper electricity for your heating and hot water requirements, while your remaining electrcity will be charged at the new standard rates, which are obviously cheaper than the E7 day charges - so you'll be saving money.

Hi Simona

The Heatwise part of your metering sits alongside the standard meter, regardless of whether this is single rate or Economy 7.

Your water and heating will be wired into the Heatwise part of the meter. This will continue to give you 10 hours of off peak electricity at the following times.

3 hours in the afternoon between 1pm and 4.30pm.

2 hours in the evening between 5.30pm and 10pm

5 hours at night between 12am and 7am.

Units used during these times by your storage heaters/water immersion will continue to be charged at the lower rates shown on your bill as afternoon and evening.

Now you have had the Economy 7 removed, all other units used at night for things like lighting, TV or any other domestic appliance will be charged at standard daily rates.

Hope this answers your question Simona. Give me a shout if I can advise further as always happy to help.

Malc

hi there

I had economy 7 with heatwise plan with Eon

I changed it recently to Standard rate for eletricity but still with heatwise plan. The reason why i preffer standard rate is that we dont use eletricity during the economy 7 times in the night at all when we dont heat.

Altough my concern is now the heating. when i had economy 7. the eletricity from heaters was chared as a night economy 7 rate during off peak times. now as i had this rate removed, is it gonna be charged as a standard rate or it will show as an afternoon and night- evening tarrif on the bill?

Thanks in advance

Simona

Firstly Heatwise was never meant to be a comparatively cheap tarriff. It was designed for one thing alone -- Comfort. Meaning regardless of cost the occupier had heating and hot water the entire time through. More often seen in properties without a gas supply and using some form of under-floor heating. So understandably comparing a "comfort" tarriff with an "economical" one will produce quite a big price differential.

To access these cheaper prices Jalexa is right you will need to request and where applicable make payment for the metering amendment. Once completed this will allow other suppliers to be able to take you on, and more importantly bill you correctly.

HI Chaaskul

You can have your Heatwise meter replaced any time you wish. Either with a single rate or Economy 7 meter. Just give us a call.

There will be a charge of £50 for the replacement.

As Jalexa has already pointed out, I would refer you to my previous post. It is important you have an independent electrician check out your set up as there may be work required to make sure your heating/water continues to function as it should.

Hope this helps.

Malc

Jalexa:

Chaaskul:

What I'd like to know is how to remove the heatwise part,

Contact your supplier and request a meter change to E7. You will probably have to pay and may require an electrician to perform some wiring mods. (refer to malc - eon's earlier post in this thread)

I answered the question you asked. Removing the Heatwise part leaves E7. If what you want to do is remove E7 and revert to a single rate tariff the advice is almost the same.....

"Contact your supplier and request a meter change to a single rate tariff. You will probably have to pay and may require an electrician to perform some wiring mods."

However I would also advise that it is unlikely that every Heatwise unit is £0.30 If your payments are £1600 for £900 of usage, that is something to sort out.

I think you have not understood something about either your billing or the tariff you are on.

I'm not actually trying to switch to E7. trying to get rid of it completely so i can make the switch.

This company is not found easily and will not appear on comparison sites. When I signed up prices quoted per unit. was less then 10p which is a 3rd of what we are paying now.

I am more than happy to put the heaters and water on timers. Who needs 7 hours heating water at night. Even the boost swicth only needs around 10 mins max to heat water up.

They obviously found a great way to keep you paying thier extortionate prices. I mean we use around 900 quid per year, yet the payments total 1600