The domestic hot water heating system combines two independent energy sources: a central heating (C.H.) boiler and solar collectors, ensuring optimal efficiency depending on the season.
Additionally, in cases of increased demand or temporary lack of energy from primary sources, there is an option to heat water with an optional electric heater.
This solution provides the user with convenience, flexibility, and energy savings throughout the year.
These are elements designed to protect the tank from corrosion. A magnesium anode acts as a cathodic protection by "sacrificing" itself to prevent rusting inside the tank. A titanium anode is a more durable, optional solution that extends the device's lifespan.
This is a special coating applied to the internal surface of the tank and then cured at a very high temperature (850°C). This process ensures the surface is resistant to water and corrosion, providing hygienic water storage conditions and durability.
The tank's insulation is made of high-quality materials such as:
The tank's casing is made of durable and aesthetic *skay* fabric, giving the device an elegant appearance that suits various interiors.
| Model | 20.200SE | 20.250SE | 20.300SL | 20.300SE | 11.350SE | 11.400SE | 11.500SE | 11.800SE | 11.1000SE | ||
| Actual Capacity | L | 191 | 231 | 274 | 284 | 304 | 339 | 467 | 785 | 908 | |
| Upper Heat Exchanger | Surface Area | m2 | 0.64 | 0.89 | 1.02 | 0.98 | 0.98 | 1.12 | 1.41 | 1.67 | 1.67 |
| Heating Power | kW | 14.5 | 19.8 | 22.7 | 22.2 | 22.2 | 24.5 | 24.5 | 24.5 | 24.5 | |
| Efficiency | L/h | 360 | 480 | 550 | 540 | 540 | 580 | 580 | 580 | 580 | |
| Capacity | L | 3.8 | 5.3 | 6.0 | 5.8 | 5.8 | 6.5 | 8.3 | 9.9 | 9.9 | |
| Lower Heat Exchanger | Surface Area | m2 | 0.89 | 1.27 | 1.39 | 1.39 | 1.39 | 1.53 | 2.27 | 3.32 | 3.55 |
| Heating Power | kW | 19.8 | 28.0 | 30.8 | 30.1 | 30.1 | 33.0 | 33.0 | 33.0 | 33.0 | |
| Efficiency | L/h | 480 | 680 | 750 | 740 | 740 | 800 | 800 | 800 | 800 | |
| Capacity | L | 5.3 | 7.5 | 8.2 | 8.2 | 8.2 | 8.9 | 13.5 | 19.6 | 21.0 | |
| Max Tank Operating Temp. and Pressure | 95 °C / 6 Bar | ||||||||||
| Max Heat Exchanger Operating Temp. and Pressure | 110 °C / 16 Bar | ||||||||||
| Weight | kg | 97 | 123 | 132 | 130 | 146 | 155 | 158 | 250 | 277 | |
| Magnesium Anode | Type | AM40x400 | 2x AM40x400 | ||||||||
| Optional Titanium Anode | Type | AT300EZ | AT500EZ | AT2000EZ | |||||||
| Optional Electric Heater | Type | G.K.1.4/G.K.2.0/G.K.3.0/G.K.4.5/G.K.6.0/G.K.9.0/G.K.12.0 | |||||||||
| Energy Class | B | C | B | C | |||||||

| A | B | C | D | E | F | G | H | I | J | K | L | |
| 15.200SE | 1260 | 185 | 600 | 500 | 270 | 450 | 610 | 698 | 783 | 869 | 950 | 1035 |
| 15.250SE | 1488 | 185 | 600 | 500 | 260 | 475 | 719 | 805 | 892 | 970 | 1130 | 1265 |
| 15.300SE | 1510 | 205 | 650 | 550 | 290 | 510 | 745 | 831 | 920 | 991 | 1153 | 1265 |
| 15.300SL | 1735 | 208 | 600 | 500 | 293 | 558 | 815 | 1025 | 1122 | 1200 | 1423 | 1520 |
| 15.350SE | 1600 | 205 | 650 | 550 | 290 | 510 | 745 | 831 | 920 | 991 | 1153 | 1355 |
| 15.400SE | 1760 | 220 | 650 | 550 | 305 | 580 | 835 | 1020 | 1135 | 1255 | 1442 | 1527 |
| 15.500SE | 1720 | 215 | 750 | 650 | 285 | 575 | 895 | 1015 | 1090 | 1205 | 1405 | 1470 |
| 15.800SE | 1865 | 240 | 1000 | 800 | 331 | 666 | 961 | 1071 | 1161 | 1271 | 1471 | 1550 |
| 15.1000SE | 2115 | 240 | 1000 | 800 | 330 | 730 | 1130 | 1276 | 1366 | 1476 | 1676 | 1800 |
| 200-400L | 500L | 800-1000L | ||
| CW | Hot water outlet | G 3/4" W/F | G 1" W/F | G 1" W/F |
| ZWG | Upper coil supply | G 3/4" W/F | G 1" W/F | G 1" W/F |
| CT1 / 2 | Temperature sensor sleeve | Pipe 3/8" | Pipe 3/8" | Pipe 3/8" |
| R | Recirculation connector | G 3/4" W/F | G 3/4" W/F | G 3/4" W/F |
| PWG | Upper coil return | G 3/4" W/F | G 1" W/F | G 1" W/F |
| ZWD | Lower coil supply | G 3/4" W/F | G 1" W/F | G 1" W/F |
| PWD | Lower coil return | G 3/4" W/F | G 1" W/F | G 1" W/F |
| ZW | Cold water inlet | G 3/4" W/F | G 1" W/F | G 1" W/F |
| T | Thermometer | |||
| K | Flanged connection | DN 120 | DN 120 | DN 200 |
| KA | Flanged connection with anode | |||
| KG | Heater connection | G 6/4" W/F | G 6/4" W/F | G 6/4" W/F |
| Installation | Vertical, Floor |
| Heater | OPTIONAL |
| Insulation | Skay |
| Coil | 2 coils |
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