Hydro Silver is a pellet boiler designed for users who value convenience, efficiency and safety. Thanks to the built-in hygienically certified copper hot water exchanger, users can enjoy reliable hot water without the risk of developing bacteria such as Legionella. Automatic cleaning of the burner and exchanger ensures maintenance-free operation of the unit, which reduces the need for maintenance and facilitates daily use. The boiler meets Ecodesign and Class 5 emission standards, guaranteeing environmentally friendly and efficient heating.
Pellet boiler
Hydro Silver
Convenient heating, without unnecessary expense
The Hydro Silver is a boiler based on our most advanced product, the Eko Silver III. Thanks to its increased water capacity, which acts as a heat buffer, maintenance and installation costs are significantly reduced by not having to install a domestic hot water (DHW) pump. The boiler is equipped with a copper anti-microbial coil that provides reliable hot water supply. The automatic cleaning function of the heat exchanger and pellet burner enhances convenience, making Hydro Silver a solution that combines efficiency and comfort.
The boiler has particulate emissions of less than 20mg/m3 of flue gas, thanks to which the boiler can receive the highest possible subsidy under the "Clean Air" program.
Availability of domestic water depending on the boiler output
Hydro Silver
The coil provides a flow rate of 1.2 to 1.5 m3/h, which allows for a capacity of 49 to 61 kW. In practice, this means the availability of domestic hot water in the amount of:
10kW - from 120 to 175 liters
15kW - from 120 to 190 liters
20kW - from 125 to 195 liters
25kW - from 140 to 220 liters
40kW - from 215 to 300 liters
The amount of prepared water depends on the boiler water temperature settings (lower threshold for 60°C boiler water, upper threshold for 70°C boiler water).
It takes about 30 minutes to fully heat the coil and prepare hot water from scratch. This means that even in the event of high hot water consumption, the system quickly recovers to full capacity, providing constant access to heated water.
Hydro Silver
Advantages of the boiler
- Warranty
- for the tightness of the exchanger 60 months
- Stalmark burner
- with self-cleaning grate and firing function
- DHW coil
- our hygienically certified copper coils eliminate the risk of bacteria formation, such as Legionella
- Water capacity
- large water capacity of the boiler, together with a coil for heating domestic hot water, ensures efficient operation and a high level of safety
- Cooperation with photovoltaics
- The boiler is prepared as standard for the installation of an electric heater
- Tubular exchanger
- Boiler made of certified 6mm sheet metal with automatic cleaning
- Effectiveness
- lower electricity consumption due to the lack of need for a pump to power the coil
Characteristics
Type of boiler: with feeder
Tank: 170L - 10kW, 220L - 15kW, 20kW and 25kW, 300 - 40kW
Power available: 10kW, 15kW, 20kW, 25kW, 40kW
5 emission class: 10kW, 15kW, 20kW, 25kW, 40kW
Reduced particulate emissions of less than 20mg: 10kW, 15kW, 20kW, 25kW, 40kW
Ecodesign: 10kW, 15kW, 20kW, 25kW, 40kW
Fuel type: 6-8mm wood pellets
Energy efficiency: A+
Controller: ST 978T
Standard equipment:
- ST 978T controller supporting 5 pumps, 2 mixing valve actuators and 2 room controllers
- self-cleaning burner
- igniter
- external sensor
Additional equipment:
- WIFI RS module
- room controller ST 281
- control of second mixing valve.
Boiler data
Hydro Silver
Move to read data
| Boiler POWER [kW] | Boiler HEATING AREA [m2] | MAX. HEATING AREA [m2] |
|---|---|---|
| 10 | 1.4 | up to 125 |
| 15 | 1.65 | up to 185 |
| 20 | 2.07 | up to 250 |
| 25 | 2.38 | up to 300 |
| 40 | 4.18 | up to 480 |
Boiler specifications
Hydro Silver
Move to read data
| Parameter | unit | 10kW | 15kW | 20kW | 25kw | 40kW |
| Nominal power | kW | 10 | 15 | 20 | 25 | 40 |
| Power Range | kW | 3.0-10 | 4.5-15 | 6.0-20 | 7.5-25 | 12.0-40 |
| Heating area | m2 | 1.4 | 1.65 | 2.07 | 2.38 | 4.18 |
| Area of heated rooms* | m2 | up to 125 | up to 185 | up to 250 | up to 300 | up to 480 |
| Max. permissible operating pressure | MPa | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Flue gas draft required | Pa | 10 | 15 | 15 | 20 | 20 |
| Disposable Bin Fuel Filling | l | 170 | 220 | 220 | 220 | 300 |
| Supply water temp [min/max] | °C | 60/80 | 60/80 | 60/80 | 60/80 | 60/80 |
| Minimum return water temp. | °C | 55 | 55 | 55 | 55 | 55 |
| Boiler Weight | kg | 320 | 355 | 395 | 430 | 590 |
| Fuel Burning Period | h | 40 | 51 | 35 | 30 | 21 |
| Fuel Filling Opening Dimensions | mm | 370x370 | 370x480 | 370x480 | 425x315 | 425x315 |
| Exhaust gas temperature for nominal/minimum power | °C | 99/64 | 116/73 | 148/90 | 136/94 | 121/79 |
| Exhaust gas mass flux for nominal/minimum power | kg/h | 25.2/9.7 | 30/12 | 12.1/4.6 | 52/20.5 | 27.1/9.3 |
| Boiler Water Capacity | l | 145 | 160 | 175 | 200 | 263 |
| Minimum chimney height | m | 6 | 6 | 6 | 6 | 8 |
| Boiler efficiency | % | 90.5 | 91.2 | 91.5 | 91.7 | 92.1 |
| Flue Dimensions | ∅ or mm | 160 | 180 | 180 | 180 | 180 |
| Supply and Return Diameter (female threaded couplers) | in | 1" | 1" | 1" | 1" | 1" |
| Electrical Power Supply | V/Hz | 230/50 | 230/50 | 230/50 | 230/50 | 230/50 |
| Energy Efficiency Class | - | A+ | A+ | A+ | A+ | A+ |
| 5 class | - | yes | yes | yes | yes | yes |
| Ecodesign | - | yes | yes | yes | yes | yes |
*the area given refers to the heating power requirement of 80W/m2
Hydro Silver
The Hydro Silver boiler is equipped with advanced features that make it ideal for modern households. The enlarged water capacity, which acts as a heat buffer, ensures stable operation of the heating system while saving space in the boiler room. Thanks to cooperation with photovoltaic installations and the possibility of installing an electric heater, users can make the most of renewable energy sources. Standard equipment includes the ST 978T controller, operating pumps and controllers, which translates into full control over the operation of the boiler.
