Prefabricated Solar Water Heaters O’so Easy

If you want a solar water heater that provides a good base of hot water, then the Economy package is the right choice. If the desire is to enjoy hot water from a solar water heater as early as possible in the spring to as late as possible in the fall, then a premium package is the ideal choice. A premium package features additional heat pipe collectors. These can bring the storage vessel up to temperature even during days with low daylight hours. With a premium package, you extend the solar water heater’s season every year.

Most parts are already pre-assembled and tucked away under a stylish O’so Easy hood. In addition, this solar water heater comes standard with an energy-saving electrical element.

The Prefab O’so Easy solar water heater also has a premium extension. Where the Economy provides basic hot water needs, we can expand the set to more power and thus more hot water needs. This advances and extends the season when delicious hot tap water can be enjoyed without having to switch on the existing hot water heater. This saves even more on energy costs. Also, with the ample heat pipe collector capacity, the boiler tank is up to temperature faster. In addition, the included comprehensive control provides data logging capability.

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    What are the benefits?

    save more than 50% on assembly time

    Only connect piping at the O’so-Easy, which saves time. Instead of dozens of couplings, now only three pipes to connect.


    With the O’so Easy, all components are already integrated into the boiler vessel. This means invisible from the outside, but powerful from the inside.

    All connections at the top of the water heater

    The Solar and Water connections are on the top of the high-grade stainless steel water heater. Very easy when assembling the unit!

    Prefab Solar Water Heater

    O’so Easy

    As one of the largest Dutch suppliers of solar boilers and hot water systems, we know it better than anyone: every solar boiler is a project. All the separate components make the whole complex and time-consuming. Your customer, the end user, will notice this on the invoice. Add to that the appalling shortage of professionals and it is clear: the solar water heater is due for renewal. With the O’SO Easy you do not opt for individual components, but for a semi-finished product. This smart and prefab stainless steel solar water heater needs to connect three pipes; that’s it. O’SO Easy.

    With an O’so Easy, both the installer and the customer benefit in the broadest sense of the word. Compared to the traditional solar boiler, in which the solar pump set, expansion vessel, overflow valve, inlet combination and other components are mounted separately, these components are integrated in the boiler with the O’so Easy. This not only results in a very sleek finish, it also offers considerable savings in assembly time. The Oso-Easy is available in 150, 200 and 300 liters and is standard made of stainless steel. These high-quality boilers are light in weight and therefore health-friendly. In addition, it is also maintenance-free!


    Even more benefits

    Stainless steel Maintenance-friendly

    The O’so Easy requires no annual inspection to preserve enamel coating and boiler steel and is corrosion resistant.

    Reliable through high quality

    High-quality and durable components are the basis for Europe’s most complete solar water heater.

    Available in 150, 200 and 300 liters

    The right boiler for the right application. From two to four person households.

    Very light weight: stainless steel boiler

    Our stainless steel boilers are light in weight and therefore occupational health and safety friendly.

    Substantial space savings

    Wall and floor space is saved by integrating all necessary fittings into the boiler.

    Always certainty

    The O’so Easy is always equipped with an electric element, which makes it possible to electrically reheat tap water on dark days.

    Solar collectors, thermal solar (HeatPipes)

    Optionally, solar collectors can be added to the O’so Easy. These so-called heat pipes ensure that hot water is generated directly from the sun and stored in the boiler. This option gives a very large extra saving on your energy bill.

    This combination with heatpipes is especially suitable for the recreational sector  a perfect solution. In the high season, the demand for hot water is highest and we also have the most hours of sunshine. Substantial subsidies are available for adding these solar collectors.

    Solar collectorsTemperature Controlled

    Experience the simplicity of the

    Prefab O’so Easy

    Regular solar water heater

    Prefab O’so Easy solar water heater

    The prefab solar boiler set

    The most complete solar water heater in Europe

    With its range of solar boilers, ReHeat has the most complete solar boilers in Europe. This implies  that all supplies are included with the kit.

    In addition to the boiler, collectors, pump set, regulator and piping, also all necessary couplings, appendages and roof mounting material. Not just the essentials, but complete up to and including the last heat shrink tubing.

    Prefab O’so Easy solar water heater

    Watch this video and you will immediately understand why the prefab O’so Easy solar water heater is the right choice.

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