Meet the Raypak Digital E3T 27kW Electric Pool & Spa Heater (model 100-10000666)—a purpose-built heating solution that brings fast, reliable warmth to spas and small-to-medium pools with precise digital control. Designed for demanding environments, this 240V single‑phase unit delivers strong electric heating, quiet operation, and built‑in diagnostics to keep you in total command of your comfort.
Power, control, and resilience that set it apart
- 27kW heating output (≈92,000 BTU/hr)—exceptional heat capability for rapid spa warmups and steady pool temperatures without gas lines or flues.
- Digital control & diagnostics—intuitive display and onboard troubleshooting help you dial in precise temperatures and anticipate issues before they impact comfort.
- Corrosion-resistant design—built for long-term operation in pool and spa environments, including saltwater or harsher water conditions.
- Quiet electric operation—no combustion noises, so equipment pad remains unobtrusive and peaceful.
- Service-friendly build—engineered for straightforward installation and effortless routine maintenance access.
Who this is for and the problems it solves
- Ideal for spas and smaller-to-medium pools needing dependable electric heat with rapid heat-up times and precise temperature control.
- Saltwater and harsh-water environments requiring durable components that resist corrosion over years of use.
- Retrofit scenarios—an excellent retrofit option when upgrading or replacing an existing electric heater assembly, especially if the system is already electric.
- Digital temperature control for consistent comfort, from a quick warm spa session to all-night pool maintainance.
How it performs in real-world use
For spa evenings, the 27kW output delivers quick warmups and precise temperature maintenance, so you won’t overheat or undershoot the desired setting. In pools, it provides steady heat without the need for gas infrastructure, making seasonal heating more predictable and cost-efficient. The digital controls and built-in diagnostics help homeowners and professionals stay on top of performance, reducing downtime and simplifying service calls.
Specifications at a glance
- Model: 100-10000666 (Raypak Digital E3T)
- Heating output: 27kW (≈92,000 BTU/hr)
- Electrical service: 240V, single-phase, 60Hz
- Environment: suitable for saltwater and other harsh-water conditions
- Controls: digital control panel with diagnostics
- Sound: quiet operation
- Maintenance: service-friendly design for straightforward installation and access
Installation and care
Professional installation is recommended to ensure proper wiring, bonding/grounding, and correct flow conditions. The Raypak E3T is designed to integrate cleanly into existing electric pool and spa systems, offering a dependable upgrade path for installations where electric heating is preferred or required.