• April 9, 2014 - Domestic Renewable Heat Incentive Released - Solar Thermal has got the great government funding through the Domestic RHI which it deserves! Solartwin Solar Thermal panels have just become not only a cost cutting and very green option to heat your water but now you will receive additional... More →
  • November 6, 2013 - Notice to Solartwin customers - Letter's from Stenfield & Co - A number of Solar Twin Ltd customers have been in touch this week to query a letter they have received from legal firm Stenfield & Co. - The content relates to Solar Twin Ltd's liquidation, and claims that customers "undoubtedly paid more than... More →
  • July 12, 2013 - Renewable Heat Incentive Updated - Solar Thermal to have Heavy Support - The Government have today released the Renewable Heat Incentive: The first step to transforming the way we heat our homes. If you are looking to buy a SolarTwin System contact Genfit. "the scheme will be open to anyone in these groups who installed... More →
  • May 27, 2013 - DECC announce they are doubling the RHPP grant for solar thermal from £300 to £600 - Solar Thermal Panels Receive Huge Renewable Heat Premium Payment - Solar Thermal has received a huge boost, it's a great time to buy a Solartwin Product. - Greg Barker tweeted about the scheme - - Big uplift for #RHPP Vouchers to put a shot in the... More →
  • February 14, 2013 - Solartwin DIY reviews - SolarTwin Reviews from Reviewcentre - "Review Centre is a community of real people, just like you, sharing their product and service experiences. - Our community of reviewers are a passionate bunch who want to help you discover what's right for... More →
  • January 17, 2013 - Crackdown on aggresive solar selling - YouGen, a leading consumer body serving the renewable and energy efficiency sectors, is calling for a change in the law after a review by the Office of Fair Trading revealed unscrupulous selling tactics by solar and other energy efficiency... More →

Solar Water Heating Product Recall / Free Upgrade Announcement: Legionnaires’ Disease Risk.

From Solar Twin Ltd “Solartwin” regarding solar water heating installations using conventional twin coil solar cylinder and twin series cylinders. Solartwin review legionella safety for customers of solar water heating systems.

What’s happened?

We have decided, following a safety review involving HSE and Legionella consultants, that there’s an elevated Legionella risk with most types of conventional twin coil solar cylinder and twin series cylinders. As the care and safety of our customers is a priority, we will upgrade these to reduce the risk of legionellosis, free of charge where we have either specified or installed such solar thermal installations. These higher risk types of installations comprise a very small proportion, under 1% of our installations. No other products or services in our solar thermal or solar PV ranges are affected. It goes without saying that we’re very sorry for the inconvenience caused.

What should I do?

1/ Please visit this link for a video, brief information of possible risks and on solutions.

2/ If you are immunosuppressed, you should not take showers or do any other activity which generates hot water spray.

3/ If you have such a conventional twin coil solar cylinder and twin series cylinder installation, or if you just think that you might have one, please call us on 0344 567 9032. We will identify your installation, assess any risks and offer a free upgrade if necessary.

No other Solartwin solar products are affected by this recall. Over 99% of our installations are not of the affected twin coil solar cylinder and twin series cylinders types, but are of the safer thermal store and direct heat-to-base types.

Further detail:

Based on a Legionella safety risk assessment, which suggests that twin coil solar cylinders may be up to ten times higher in terms of Legionella risk than conventional vented non-solar hot water stores (whether these are with or without Solartwin direct installations), Solar Twin Ltd are offering a free upgrade for customers for whom we have supplied and fitted:

1/ Indirect twin coil solar cylinders which are unable to heat to the base of the hot water cylinder.

2/ Twin series cylinders which are unable to heat to the base of the upstream hot water cylinder.

The vast majority, ie over 99% of all Solartwin installations (ie those with direct installations and thermal store installations) are unaffected by this solar product recall / free upgrade notice and only a tiny minority of our installations are of the indirect twin coil cylinder or twin cylinder in series types. And not all of these may be unable to heat to the base. Some may in fact have basal backup heaters installed, so these may already be OK

Nevertheless we have provisionally identified that a very small number of Solartwin solar water heating installations installed between 1999 and 2009 may use indirect twin coil solar cylinders and there is also a rare possibility that a very few customers have a twin series cylinder installation.

If you think that you have a twin coil solar cylinder or twin series cylinder please call us on 0344 567 9032 and ask for customer service for further advice, a technical assessment and if required, your free upgrade. We may ask you for photos of your hot water cylinder, and of its label, if you are able to provide them.

This free upgrade is available to you from Solar Twin Ltd irrespective of whether or not your product warranty period has expired, provided that we have installed or specified the solar water heating system for you.

If you are a customer of another solar thermal supplier or of an installer other than Solar Twin Ltd you may want to contact their customer service department and ask for their assistance. Unlike Solartwin, over 80% of “conventional” solar thermal installations use twin coil cylinders. Our new solutions, which were invented in Edinburgh, are safer.

We have asked the renewable energy industry consumer watchdog REAL Code for advice on whether we are required to offer free upgrades and they have not confirmed whether or not we are required to offer free upgrades. Nevertheless, ahead of any of other solar supplier, and against advice from colleagues in the solar thermal industry, who not think that any safety upgrade is necessary, as a commitment to the highest standards of safety in solar heating, we are offering this free upgrade service with the support of Trading Standards, with whom we have met to discuss this matter. This web page is linked to from the Trading Standards Institute “Product Recalls” page.

For speed, and for the sake of the environment, Solartwin offer feasibility checks and fixed price solar quotes by phone.
Unique in the world, Solartwin's phone survey now also uses online aerial photographs of your roof in most urban areas!

Unlike most solar surveys, our instant surveys and quotes are completely free and with no obligation.
Click here to request a survey

Or Call us on

0344 567 9032

Domestic Renewable Heat Incentive Released

Solar Thermal has got the great government funding through the Domestic RHI which it deserves! Solartwin Solar Thermal panels have just become not only a cost cutting and very green option to heat your water but now you will receive additional funding too! The Domestic RHI rates – Released April 2014 Ofgem have produced a […]

Read More | Archives

Notice to Solartwin customers – Letter’s from Stenfield & Co

A number of Solar Twin Ltd customers have been in touch this week to query a letter they have received from legal firm Stenfield & Co. The content relates to Solar Twin Ltd’s liquidation, and claims that customers “undoubtedly paid more than you should have and it is highly likely that you will have been […]

Read More | Archives

Renewable Heat Incentive Updated – Solar Thermal to have Heavy Support

The Government have today released the Renewable Heat Incentive: The first step to transforming the way we heat our homes. If you are looking to buy a SolarTwin System contact Genfit. “the scheme will be open to anyone in these groups who installed an eligible technology since 15th July 2009” so if you have a […]

Read More | Archives

DECC announce they are doubling the RHPP grant for solar thermal from £300 to £600

Solar Thermal Panels Receive Huge Renewable Heat Premium Payment Solar Thermal has received a huge boost, it’s a great time to buy a Solartwin Product. Greg Barker tweeted about the scheme – Big uplift for #RHPP Vouchers to put a shot in the arm of the market ahead of full Domestic #RHI tinyurl.com/ktxz3o2 — Greg […]

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Solartwin DIY reviews

SolarTwin Reviews from Reviewcentre “Review Centre is a community of real people, just like you, sharing their product and service experiences. Our community of reviewers are a passionate bunch who want to help you discover what’s right for you.” (Review Centre) We are well rated on review centre, this shows the excellent product quality of […]

Read More | Archives


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