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ATLANTIC O’Pro+ H 100 (HM100) electric water heater 100 l, 1.5 kW, horizontal, 863054
ATLANTIC O’Pro+ H 100 (HM100) electric water heater 100 l, 1.5 kW, horizontal, class C, 863054
ATLANTIC O’Pro+ H 100 / HM100 / HMO+ 100, reference 863054, is an electric storage water heater with a 100-litre tank and 1500 W / 1.5 kW heating output. The model is designed for horizontal wall-mounted installation, making efficient use of space where vertical installation is unsuitable.
Its 100-litre capacity provides a substantial reserve of domestic hot water for everyday use. The horizontal design is particularly suitable for bathrooms, technical rooms and other locations with restricted installation height.
The model uses a 1500 W copper immersion heating element and operates from a 230 V supply. ATLANTIC’s original technical documentation for reference 863054 specifies an approximate heating time of 3 hours 36 minutes to raise the water temperature from 10 °C to 60 °C.
A key feature is ATLANTIC O’Pro anti-corrosion technology. An ohmic resistor between the tank and immersion heating element helps balance electrical potentials and reduce the effects of galvanic current.
Additional protection is provided by a magnesium anode. O’Pro technology helps the anode protect the tank and heating element more uniformly, contributing to longer component life.
The inner surface of the tank is protected by ATLANTIC Diamond-quality new-generation enamel. This enamel layer creates a protective barrier between the stored water and the steel tank.
The construction incorporates a stainless-steel hot-water outlet pipe and a specially designed cold-water inlet system. The inlet diffuser helps reduce unnecessary mixing of incoming cold water with already heated water.
High-density CFC-free polyurethane insulation reduces tank heat losses. ATLANTIC specifies approximately 1.95 kWh/24 h standby energy consumption with stored water at 65 °C and ambient temperature at 20 °C.
Temperature is controlled by a mechanical capillary thermostat, while an external regulator allows manual adjustment. The appliance also has an external thermometer and heating indicator lamp.
The water heater has an IP24 electrical protection rating. Equipment includes a cold-water safety valve, dielectric insulating union on the hot-water outlet and electrical cable with plug.
According to the official EPREL product fiche for reference 863054, the energy efficiency class is C and the declared load profile is L. Water-heating energy efficiency is 37% and annual electricity consumption is 2738 kWh.
The EPREL thermostat setting is 63.59 °C and the indoor sound power level is only 15 dB. Groupe Atlantic specifies a 968 mm length, 433 mm body height/diameter, 451 mm depth and 22 kg net weight for reference 863054.
Main advantages
- 100-litre storage tank
- 1500 W / 1.5 kW copper heating element
- Horizontal wall-mounted installation
- ATLANTIC O’Pro anti-corrosion technology
- Ohmic resistor to reduce galvanic current
- Magnesium anode for tank protection
- Diamond-quality new-generation enamel
- Copper immersion heating element
- Stainless-steel hot-water outlet pipe
- Cold-water inlet diffuser
- High-density CFC-free polyurethane insulation
- Mechanical capillary thermostat
- External temperature control
- External thermometer
- Heating indicator lamp
- Safety valve and dielectric union
- IP24 electrical protection
- Energy efficiency class C and L load profile
Technical information
| Manufacturer | ATLANTIC |
| Series | O’Pro+ |
| Official model | O’Pro+ H 100 |
| Regional designation | HM100 / HMO+ 100 |
| Product code | 863054 |
| Product type | Electric storage water heater |
| Installation | Horizontal, wall-mounted |
| Capacity | 100 l |
| Heating output | 1500 W / 1.5 kW |
| Supply voltage | 230 V |
| Heating element | Copper immersion heating element |
| Heating time 10–60 °C | 3 h 36 min |
| Standby energy consumption | 1.95 kWh / 24 h at 65 °C |
| Energy efficiency class | C |
| Load profile | L |
| Water-heating energy efficiency | 37% |
| Annual electricity consumption | 2738 kWh |
| ErP thermostat setting | 63.59 °C |
| Sound power level | 15 dB |
| Protection rating | IP24 |
| Thermostat type | Mechanical capillary thermostat |
| Temperature control | External mechanical control |
| Anti-corrosion system | ATLANTIC O’Pro |
| O’Pro resistor | Ohmic resistor |
| Anode | Magnesium anode |
| Tank material | Steel |
| Tank lining | Diamond-quality enamel |
| Thermal insulation | High-density polyurethane foam |
| CFC content | 0% |
| Hot-water outlet pipe | Stainless steel |
| Cold-water inlet | Diffuser |
| External thermometer | Yes |
| Heating indicator lamp | Yes |
| Safety valve | Yes |
| Dielectric union | Yes |
| Electrical cable with plug | Yes |
| Water connections | 1/2" |
| Length | 968 mm |
| Height / body diameter | 433 mm |
| Depth | 451 mm |
| Flange opening | 72 mm |
| Net weight | 22 kg |
| EAN | 3410538630544 |
| CN code | 85161080 |
| EPREL registration number | 116286 |
| Placed on EU market from | 02.12.2011 |
| Tank warranty | 5 years |
| Electrical-part warranty | 2 years |