Shipping cost is calculated individually due to product size and weight.
ATI BL45 Marine Water Heater 45L 230V
Shipping cost is calculated individually due to product size and weight.

Reliable 45L Hot Water Supply for Boats and Yachts
The ATI BL4512 is a premium marine water heater designed to provide a dependable supply of hot water on board sailing yachts, motorboats, catamarans, and commercial vessels. With a 45-litre capacity, this model offers an excellent balance between compact dimensions and increased hot water availability, making it ideal for vessels requiring greater comfort during extended trips.
The water heater combines a powerful 1250W electric heating element with an integrated engine heat exchanger, allowing hot water production either from shore power, generator supply, or waste heat generated by the vessel’s engine. This dual-heating design improves efficiency while reducing energy consumption during navigation.
Durable Marine Construction
ATI marine water heaters are specifically engineered for demanding marine environments.
Key construction features include:
- Enamelled steel inner tank with DIN 4753 protective coating
- High-efficiency engine heat exchanger
- Closed-cell polyurethane foam insulation
- Pre-painted marine-grade aluminium outer casing
- Adjustable safety thermostat
- Pressure relief and non-return valve
- Magnesium anode protection against galvanic corrosion
- AISI 304 stainless steel mounting brackets
- Drain valve for maintenance and winterization
- Standard 230V power cable supplied
Dual Heating System
The ATI BL4512 can heat water through:
- 1250W / 230V electric heating element
- Engine cooling circuit heat exchanger

This flexible configuration ensures continuous hot water availability whether the vessel is moored or underway.
Technical Specifications
| Specification | Value |
|---|---|
| Model | BL4512 |
| Capacity | 45 L |
| Heating Element | 1250 W |
| Voltage | 230 V AC |
| Current Draw | 5.4 A |
| Heating Time (15°C → 45°C) | 75 min |
| Maximum Pressure | 700 kPa |
| Water Connections | 1/2" |
| Frequency | 50 Hz |
| Length | 6893 mm |
| Width | 390 mm |
| Height | 391 mm |
| Empty Weight | 15.0 kg |
| Gross Weight | 17.6 kg |

Standard Package Contents
Each ATI BL45 water heater is supplied with:
- Installation manual
- Warranty certificate
- Mounting brackets and fixing kit
- Pressure relief and non-return valve
Included accessories are specified by the manufacturer.
Ideal Applications
The ATI BL4512 is suitable for:
- Sailing yachts
- Motor yachts
- Cruising catamarans
- Sport fishing boats
- Commercial workboats
- Liveaboard vessels
Its 30-litre capacity provides additional hot water reserves while maintaining compact installation dimensions.
Why Choose ATI Marine Water Heaters?
ATI water heaters are manufactured specifically for marine use and offer excellent reliability, corrosion resistance, and heating performance. The combination of enamelled tank protection, efficient insulation, engine heat recovery, and high-quality marine components ensures many years of dependable service on board.
Why Buy from Gaelix Marine Service?
Gaelix Marine Service supplies premium marine equipment for recreational and commercial vessels across Europe. We provide expert technical support, worldwide shipping and genuine marine products from trusted manufacturers.
Ships from Greece Warehouse
Worldwide delivery available.
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