Solar Water Heater Ratings part 16, Reviews of the Unical, Vanward, Vergne, Viadrus, Viessmann, Wagner, & Zantia brands

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BRAND------------WEBSITE---------RATING

UNICAL-----------unicalboiler.com--<1*

These water heaters are made in Italy. They offer a variety of kits but their website is not much help and does not have a stated guarantee for the products. 

VANWARD-----chinavanward.com----<1*

These water heaters are made in China and use basic technology. Their website is not much help and does not have a stated guarantee for their products. 

VERGNE--  vergne-innovation.eu  ---<1*

These water heaters are made in France. Their website is not much help and does not have a stated warranty policy. 

VIADRUS---------viadrus.cz----------<1*  

The SPACE ENERGY systems are available for domestic hot water only or as combi (for central heating also). They are made in the Czech Republic and are available worldwide. Their website is not much help and the warranty is not as good as many other brands. 

VIESSMANN-  viessmann-us.com  --<1*

The VITOSOL DHW kits use their premium flat plate collectors and are sold through authorized dealers only. The piping systems do not require soldering as they use their pre-insulated flexible piping for easier installation.

WAGNER------  wagner-solar.com  --2*

This brand offers a variety of packages that are backed by a pretty good guarantee.

 ZANTIA------------zantia.com-------<1*

Their website is not much help and the guarantee on components (other than the collectors) is not very good when compared to other brands. 

If you need help in selecting the proper solar water heating system, you can contact me (Hvacrepairguy) on Facebook Messenger by clicking on the button. I will find the proper size for you, select the best that is available on Amazon.com and send you a link to purchase it.

Other Solar Water Heater Brand Ratings

You can continue to browse our alphabetical list of manufacturers but, if you are looking for a specific brand, you can enter its name in the search box at the top of the page.

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