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Coates PHS Series Electric Heater 54kW 1 Phase 240V 12454PHS-4
Coates PHS Series Electric Heater 54kW 1 Phase 240V 12454PHS-4
A powerful 54kW electric pool heater with digital thermostat and durable construction for large residential and commercial pools.
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The Coates PHS Series 12454PHS-4 Electric Heater is a high-powered 54kW unit designed for large residential and commercial pools. It operates on a 240V single-phase system, drawing 225 amps for substantial heating capacity.
Featuring Incoloy heating elements and a digital thermostat, it ensures precise temperature control and durability with its stainless steel tank. The heater includes safety features like a manual reset high-temperature limit and a built-in flow switch.
With compact dimensions (28" L x 15" W x 15" H) and a weight of 100 lbs, this heater is easy to install in various environments. It supports a flow rate of 20–80 GPM, making it versatile for different pool configurations. UL Listed for indoor and outdoor use, it meets industry safety standards while offering robust performance.
The heavy-duty contactors and 2" male NPT connections simplify installation and maintenance. Its digital thermostat and Incoloy elements ensure efficient and long-lasting operation, ideal for demanding pool heating needs.

⭐⭐⭐⭐⭐
Customers praise the Raypak 406A for its efficient heating and durable, weather-resistant construction.
The digital thermostat and electronic ignition are highlighted for their reliability and ease of use.
Many users appreciate the heater’s compact design and compatibility with pool control systems.
The Unitherm Governor feature is noted for extending the unit’s lifespan by preventing scale buildup.

- High-Efficiency Digital Pool Heater: Delivers 399,000 BTU for rapid and consistent heating.
- Durable and Weather-Resistant Design: Features a corrosion-resistant galvanized metal cabinet with Polytuff powder coating.
- Precise Temperature Control: Equipped with a digital thermostat and electronic ignition.
- Extended Lifespan: Unitherm Governor prevents condensation and scale buildup.
- Compact and Compatible: Space-saving design works with most pool control systems.

- Application: Pool, Spa.
- Use Type: Commercial.
- Product Weight: 271 pounds.
- Shipping Dimensions: 44.5 x 34 x 30.5 inches.
- BTU Input: 399,000 BTU.
- Fuel Type: Natural Gas.
- Burner Orifice Size: #52.
- Control Type: Digital.
- Header Material: Bronze.
- Ignition Type: Electronic.
- Minimum Sell Quantity: 1.
- UPC Code: 840891041641.

Q: What is the heating capacity of the Raypak 406A?
A: The heater provides 399,000 BTU for rapid and consistent heating.
Q: Is this heater suitable for outdoor installation?
A: Yes, it is designed for outdoor use and can be installed on combustible surfaces.
Q: Does the heater come with a warranty?
A: Warranty details can be obtained from the manufacturer or authorized dealers.


Pool heaters and heat pumps are not returnable once installed or connected. Double-check fuel type, voltage, and sizing before installation.

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Raypak is a trusted name in pool and spa heating, offering energy-efficient gas heaters and heat pumps built for long-lasting performance. Whether you're warming up your pool for year-round use or extending your swim season, Raypak delivers reliable temperature control. At AquaDoc, we offer a wide selection of Raypak pool heaters to help you enjoy comfortable water—whenever you want it.
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