Indirect Water Heater Ratings part 14, Reviews of the Westinghouse, Windhager, Wirbel, Wolf, Worcester, and Zantia brands

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This brand is made by HTP and is available in six sizes from 30 to 100 gallons. They feature durable stainless steel construction but their guarantee is not very good when compared to other brands.


This brand is made in Austria. The AquaWin units are basic storage tanks that are available in three sizes while the AquaWin Solar model is a premium tank. They use standard enameled tank technology and their website does not have a stated guarantee for the units.


The CAS water heaters are made in Austria and have durable stainless steel heat exchangers. They are available in five sizes but the website does not have a stated warranty policy.


This brand features old tank technology and the warranty on the units is not very good when compared to other brands.


The GREENSTORE tanks are available in a variety of sizes but their website is not much help. The brand is a part of the BOSCH GROUP and the units are backed by a decent warranty.


This brand offers a variety of models with either stainless, copper, or basic enameled tanks. They are available in sizes from 80 to 500 liters but their website does not have a stated guarantee on the units.

Other Indirect 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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