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Biohazardx9
Rank 4
Rank 4
August 5, 2025

Alt-han resumed, you can order it.

  • August 5, 2025
  • 24 replies
  • 1155 views

This is for those seeking answers to this technology. 

 

What is alt-han? 

A bridging system to allow a gas meter / ihd far far away to communicate. This is done using a mixture of bridges labelled B1 through to B4. 

Do I need it? 

If you are in a flat like me or your gas meter is far away from the comms at your home then the answer is yes. 

How do I get it? 

This is done during the install of your smart meter. However if like me you had a failed meter install from a previous provider then you can call up. However you'll need to be clear you need it when ordering otherwise you'll have a failed visit. 

The end result 

Once all communicating, your ihd and readings will operate as normal. 

Some pictures of modules... 

In order, 

B1 = this converts han to powerline and is installed by the electric meter. Takes its power before the meter not after it. 

B2 = (not pictured) same as B3 below but shorter in height, does not do LRR (LONG RANGE) only powerline and HAN. 

B3 = this takes powerline signal from B1 and converts to both HAN and LRR (LONG RANGE). Uses your own power but low energy. (doesn't use much. Ihd still says 0.08 when on or off) additionally B3 (and B2) will turn off its leds and dim the ok led for convenience. Good for those who don't like bright leds. 

B4 = this converts LRR (LONG RANGE) to HAN and sits beside the gas meter. It is battery powered. 

 

 

24 replies

Newcomer
August 30, 2025

Hello,

I am a new tenant in a flat within a three-storey building. OVO was the existing electricity supplier for the flat, and I have continued with them as a new customer. I found an old IHD in the apartment, but it only connects to the smart meter when I am downstairs near the meter.

My smart meter does send readings to OVO (though not every day, only occasionally). Am I eligible to have an AltHAN display installed in my flat on the second floor?

Blastoise186
Super User
Super User
August 30, 2025

Hey ​@Sandeep Viswam ,

Yup, that may well be an option. I’d suggest having a word with OVO and they’ll see what can be arranged. :)

OVO Support can also try to get the connection to OVO’s systems more stable too - just let them know.

 

Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!
Chris_OVO
Community Manager
Community Manager
September 1, 2025

Hey ​@Sandeep Viswam

 

Welcome to the community, 

 

As ​@Blastoise186 has said we recommend reaching out to our Support Team using the link above to set up a site visit. One of our friendly engineers will be happy to take a look at your setup!

 

You can find more information on ALT-HAN installs in one of our members articles below:

 

We’d love to hear how it goes, as your experience could really help others in a similar situation.

Renewable energy jokes never get old.
Rank 2
September 9, 2025

I had an appointment for Alt-Han plus IHD cancelled today with OVO saying Bridge B1 could not be fitted because the meter sits on a conduit box.

I thought the discussion in the threads above, sketches and photos, showed that Alt-Han Bridge B1 could be fitted.

I am not sure if OVO Support (Chat) understand the detail of my setup ​@Biohazardx9 .

So today I thought it necessary to complain. I have also sent the sketches and photos to OVO. Support.

i would appreciate if you ​@Lukepeniket_OVO , ​@Ben_OVO could clarify internally with OVO.

 

Thanks.