For all our stainless steel models, PRISMA s.p.a. – HYDROPRISMA use material that is produced in accordance with EN 10088.1 type 1.4301, known as AISI 304, which is used with total safety in the cycle of drinking water. To that end, Prisma s.p.a. has registered a patent for an energy-saving feature that may be of interest to hotels, residences and large communities that use hot domestic water to heat stainless steel radiators, which are therefore used as transportation tubing, with total assurance that this water remains absolutely fit to drink.

The usage plan may be seen in Figure 1, where there is a boiler (10) that heats, through the storage heater (12), cold domestic water. The domestic water is fed to the storage heater through the hydraulic network (23), using a non-return valve (24).
The hot domestic water thus produced is maintained in circulation by a pump (13) with a non-return valve (14) downstream.
The tubing (15) feeds the faucets/taps, which are reduced for diagrammatic simplicity to a washbasin (16). Whatever is consumed comes out from the faucets and is integrated by the network (23).
Whatever is not consumed returns to the storage heater.
In a hotel, for example, as soon as a room is occupied a three-way solenoid valve (21) may be activated; this valve deviates the circuit of hot domestic water into the radiator (20) and after it has passed through the radiator and heated it, and with it the bathroom, it returns through a non-return valve (22) into the recirculation network.
All of which takes place with the minimum consumption of thermal energy and only to occupied rooms, even during the seasons when the heating is turned off. The system also has a guarantee of hygiene that lasts 25 years.
That’s how long our radiators are guaranteed.
There are multiple variations of use possible for this system: heated shelves above the bath-tub, heated under-sinks, serpentines, but always made entirely of stainless steel.
Upon specific request by designers or clients, our factory can produce radiators in sizes different from the standard dimensions, within the limits possible.

We are available for consultation to find the best solutions so as to integrate our products into your design. Contact us without any commitment via e-mail (info@hydroprisma.it) and let us know the dimensions and other data for the spaces to be heated.