Have storage heaters, underfloor heating or other 5th terminal appliances? Now you can get a SMETS2 smart meter - DIY tutorial series

That’s good news. But I presume the 5-terminal meters you’re installing are made by Aclara or EDMI?

The Elster Honeywell AS302P in the photo above is a 4-terminal which OVO have been installing for a year now.

Here’s a photo of the EDMI ES-12B. The Aclara layout of terminals is identical.

When I clip such images, I source them from the manufacturer’s own publicity material. After all, we  are commenting favourably, and extending their marketing reach so I can’t see anyone objecting!

I was going to use an Aclara image, but there wasn’t a photo with such a clear view of the terminals in the base. I’m sure they’ll supply one if we ask.

OK. That makes sense. The SGM1415B is the 5-terminal model without the additional 2A relay (which no one uses anyway!). I’ll email their Publicity Dept. and ask for photos.

Thanks for posting, @Constantin Pacurar 

You should be able to book this in online - one of the questions will relate to your appliances such as storage heaters, underfloor heating etc and if you confirm you have an appliance connected to a 5th port, it will ensure this is the smart meter type booked in. 

If you’re not able to confirm that, or if you have any doubt, call our Support team to get this booked in and any questions answered: 0330 303 5063.

I’m going to update this topic now, to make it much more clear.

Hi @robturner07  and welcome to the Forum.

I think we could do with a bit more information on the existing Smart Meter, and possibly a photo.

The preferred method of having a separate E7 fusebox (more usually call a Consumer Unit) is to have a 5-terminal Smart Meter. This has two “live” outputs, one of which is only energised when the cheap-rate electricity is available.

It’s worthwhile noting that the concept of Economy-7 is being replaced by more flexible tariffs. As we include more sources of renewable energy within the Mix, there will be “cheap rate” electricity available on sunny and windy days too.

The 5-terminal Smart Meter is future-proofed against these changes because your Energy Supplier can send alternative tariffs to your site on a daily basis, allowing you to choose whether you’d like to take advantage of these daytime slots.

There is an alternative method to achieve the same effect if it is specifically Storage Radiators that you want to have installed.

You could purchase the innovative Quantum radiators, manufactured by Dimplex.

The Quantum has an integral control panel which links to the Flex Platform, designed and operated by Kaluza.

The central Flex computer has direct connections to the National Wholesale Electricity Market and weather forecast data. This data combined such that the Quantum is supplied with the required quantity of the cheapest electricity in order to meet your set-temperature for the next 24 hours.

The user need not know when the radiator is receiving power, nor try to second-guess how much to store for the following day. The Quantum units can be connected to your ordinary Consumer Unit, rather than a separate E7 supply. Flex automatically adjusts your bill downwards because it knows how much energy was actually supplied for the radiators.

Thanks @Tim_OVO . I wasn’t aware that the Quantum storage heater was a Trial. I thought it was a fully commercial product, available from Dimplex outlets.