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RUUD 017129 ELS-D-0005-1-TI Electric Pool & Spa Heater – 5.5kW, 240V, Titanium Element, Digital Control
RUUD 017129 ELS-D-0005-1-TI Electric Pool & Spa Heater – 5.5kW, 240V, Titanium Element, Digital Control
Compact 5.5kW electric pool and spa heater with titanium element and digital control for saltwater compatibility.
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The RUUD 017129 Electric Heater delivers high-efficiency performance for pools and spas using a solid-state digital control system.
Built with a titanium heating element and 316L stainless steel housing, it withstands saltwater and harsh chemical environments.
It uses advanced flow sensor technology rather than pressure switches, providing more accurate heater activation and diagnostics.
Operating on 240V and 5.5kW of power, this model is ideal for smaller residential pool and spa applications.
Its compact and corrosion-resistant build makes it suitable for both new installs and retrofits in tight equipment spaces.

⭐⭐⭐⭐⭐
Customers appreciate the fast and reliable performance of the RUUD electric heater in smaller pools and spas.
Its titanium construction stands up well in saltwater systems, providing years of corrosion-free use.
Users like the digital control panel’s accuracy and how well it integrates with existing plumbing.
Technicians value the flow sensor technology, which minimizes false starts and improves system safety.
Many recommend this model for retrofit projects due to its compact size and compatibility with modern pool systems.

- 5.5kW electric heating for residential pool and spa use
- 240V power with 100A draw for rapid, efficient heating
- Titanium heating element and 316L stainless steel housing resist corrosion
- Saltwater and chemical-resistant build for long service life
- Digital controls with diagnostics for easy monitoring
- Flow sensor technology improves accuracy over pressure switches
- Compact design for simple installation in limited spaces
- Solid-state electronics ensure consistent performance

- Brand: RUUD
- Model: ELS-D-0005-1-TI
- Voltage: 240V
- Wattage: 5.5 kW
- Amperage: 100 A
- Frequency Rating (Hz): 60
- Fuel Type: Electric
- Flow Rate Min: 15 GPM
- Application: Pool
- Commercial, Residential, or Professional: Residential
- Ignition Type: Digital
- Material: Titanium, 316L Stainless Steel
- Header Material: Titanium
- Color: Black
- Each Product Weight: 17.75 lb
- Shipping Dimensions: 14 x 7 x 19 inch
- Minimum Sell Quantity: 1
- Master Carton Quantity: 1
- Pallet Quantity: 1
- UPC Code: 840891040286
- Mfg. Part #: 017129


Q: Is this heater compatible with saltwater pools?
Yes, it’s constructed with a titanium heating element and stainless steel housing to handle saltwater and harsh chemical conditions.
Q: What type of control system does it use?
It uses a solid-state digital interface with flow sensor technology for precise temperature control and diagnostics.
Q: Is this heater still available?
This model is obsolete and has been replaced by the Raypak E3T 5.5kW Electric Heater (Mfg. Part #: 100-10000662).



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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Ruud offers high-performance pool and spa heaters engineered for efficiency, reliability, and long-term value. Whether you're heating a residential pool or a commercial spa, Ruud systems are built to deliver consistent temperature control with lower energy costs. At AquaDoc, we provide a variety of Ruud pool heaters to help you enjoy warm water and extend your swim season with confidence.
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