Indirect Water Heater Ratings part 13, Reviews of the Vaillant, Vaughn, Viadrus, Viessmann, Vokera, Volund, Wallnofer H.F., Waterkotte, & Weil-Mclain brands

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The UNISTOR range offers basic units with a 70 liter wall-hung model and six sizes of floor standing units. The AUROSTOR model is a premium unit that features stainless steel construction for durability. Their website does not have a stated warranty policy.


The TOP PERFORMER PLUS SERIES offers basic units with their hydrastone lining for corrosion resistance. They are available in sizes from 35 to 70 gallons but the warranty on the tanks is not very good when compared to other brands.


This brand is made in the Czech Republic and sold worldwide. They use basic tank technology with magnesium anode rods. Their website is not much help and does not have a stated guarantee on the products.


The VITOCELL 100 series units feature basic glass-lined tank technology and are not recommended. The 300 series features durable stainless steel tanks that are backed by a lifetime guarantee. They offer both horizontal and vertical models.


This brand is a part of the RIELLO GROUP and is sold in the U.K. and Ireland. The AquaFlow units feature a twenty five year guarantee on the tanks and are available in four sizes to match the needs of the


The WAYLAND QS is a basic tank with enameled steel construction and is available in two sizes. The WAYLAND QMS is a premium tank but their website is not much help and does not have a stated guarantee for their products. The brand is available in Denmark and is a part of the NIBE GROUP.

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The LOGIX24 units are designed to work with their solar thermal panels and feature a stainless steel heat exchanger. The units are available in Europe, Asia, and North America but their website does not have a stated warranty policy.


This brand offers basic teflon coated tanks. Their website is not much help and does not have a stated guarantee for their products.


These water heaters are made in the USA and feature stainless steel construction for durability. The AQUA PLUS models are available in five sizes from 35 to 105 gallons to meet the needs of any size home. They have an inspection port for maintenance and a magnesium anode for corrosion protection. They have a large diameter heat exchanger that allows for quick production of hot water. They are backed by a great warranty.

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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