Domestic hot water

How is it possible to ensure a better comfort, with instant hot water always available at the desired temperature, reducing space, management costs, and hygienic risks associated with a hot water storage system? The answer is the efficient, compact, and reactive technology: instant hot water systems, a field where Novasfer is setting the standard of excellence.

In the modern hydraulic systems, both in residential and commercial, the management of domestic hot water (DHW) represents a crucial challenge. It’s not just about ensuring the comfort of end-users but also about optimizing energy consumption, reducing environmental impact, and ensuring the highest hygiene standards. Traditional systems with boilers or storage tanks, although common used in standard installation schemes, have evident limitations: waste of space, constant thermal dispersion, and the potential risk of bacterial proliferation (such as Legionella). The solution to these problems is instant hot water production, a system that heats water only when needed, at the exact moment the user opens the tap.

Instant domestic hot water production module: The Novasfer solution

Novahydro is the instant hot water system production module made by Novasfer, a pre-assembled and factory-tested unit whch integrates all the necessary components for impeccable operation. These compact units are designed to be connected to a heat generator (such as condensing boilers, heat pumps, biomass, or solar systems) from which they bring the thermal energy needed to instantly heat the water through a high-efficiency heat exchanger. This approach offers multiple advantages: bacterial reduction, reduction of space, avoid of thermal dispersion, and a better energy efficiency. Our range is divided into two main families, FWS STANDARD and FWS PREMIUM, to meet every specific installation and performance requirement.

Hot instant water production module: The FWS STANDARD

The FWS STANDARD represents the perfect solution for most of residential and commercial applications requiring reliability, compactness, and an easy installation. This DHW module has been engineered to offer a perfect balance between performance and cost, without compromising on quality. Each FWS STANDARD module is equipped with a brazed stainless steel heat exchanger, a high-efficiency electronic circulator for the primary circuit, a flow switch for immediate activation upon water demand, and all necessary regulation and safety components. It guarantee the capacity up to 30l/min and is the perfect choice for apartments, single-family homes, and small commercial users where efficiency and reliability are essential requirements.

Advanced instant hot water shower production: The ACS PREMIUM line

Where the requirements are different with premium functions or the need is to combine in waterfall more modules, Novasfer offers the FWS PREMIUM. This advanced version of the instant hot water system production system is designed for contexts such as hotels, sports centers changing rooms or multi-storey buildings with high simultaneous demands. The pro of the PREMIUM version is its advanced electronic control system. A digital controller proactively manages the modulating domestic hot water circulator and, if present, a mixing valve on the primary circuit, ensuring absolute stability of the domestic hot water temperature at the setpoint, even in the presence of strong and sudden draw-off variations. This precision control not only maximizes user comfort but also further optimizes energy consumption, making the best use of the energy from the heat generator. The FWS PREMIUM is the highest expression of technology for domestic hot water production.

Designing the domestic hot water system

Integrating a Novahydro module into a domestic hot water system are designed to interface with any type of thermal generator. This makes them the ideal choice for both new installations and energy requalification of existing buildings. In a combined system, which manages both domestic hot water and heating, the ACS module operates in parallel with the heating circuit, with priority given to DHW production to always ensure maximum comfort. The reliability of each of our systems comes from the quality of each individual component. For this reason, every valve, fitting, and brass component is the result of our experience in brass components, a guarantee of corrosion resistance and durability over time.

The precise control managed by dedicated electronic control, which modulates the circulator and ensures temperature stability, makes the system an example of efficiency also from the point of view of auxiliary consumption. Although heat comes from an external thermal generator, intelligent management ensures that the operation of the electric instant hot water production module, understood as the consumption of its components (pump and control unit), is reduced to the indispensable minimum, contributing to the overall energy saving of the home or building.

Advantages of Novasfer instantaneous domestic hot water production

Choosing a Novasfer solution for domestic hot water production means investing in technology that offers tangible and measurable benefits, appreciated by designers, installers, and end-users.

• Maximum Hygiene: The absence of stagnant water accumulation eliminates the risk of bacterial proliferation like Legionella, ensuring always safe water.
• Energy Efficiency: Water is heated only “on-demand.” This eliminates the thermal dispersion typical of boilers, which must constantly maintain a large mass of water at temperature, resulting in significant savings on bills.
• Space Saving: Our instant hot water systems modules are extremely compact and can be wall-mounted, freeing up valuable space in the boiler room that would otherwise be occupied by a big tank.
• Superior Comfort: Thanks to the system’s reactivity and the precision of the controls (especially in the PREMIUM), the inlet water temperature is stable and constant, without fluctuations, even with multiple simultaneous demand.
• Reliability and Durability: The quality of the materials, from brass components to the stainless steel heat exchanger, and the engineering of every detail ensure a long operating life for the product with a minimal maintenance.

For manufacturers of boilers and integrated systems, Novasfer is not just a supplier but a strategic partner. We offer customized solutions developed in co-design, integrating our FWS modules directly into their machines to create even more performing and competitive final products. Discover our OEM capabilities.

Every detail of our systems is designed for the professional. From ease of installation to advanced diagnostics, every aspect is carefully considered to optimize work on-site and guarantee an impeccable final result. To learn more about the technical specifications of each model, we invite you to download our complete brochure in PDF format. Explore our full range of solutions to find the system that best suits your needs and discover why Novasfer is the reference partner for efficiency and innovation in the HVAC sector. Discover the complete catalog of circulation units for systems and transform the way you design and build your plants.