Based on official Raypak data:
\nCommon E3T models:
\n\n\n(BTU is “heat output equivalent” — electric heaters are rated differently but behave like continuous-output heaters.)
\n
✔ Fully digital control panel (temp + diagnostics)
✔ Titanium heating element (very corrosion resistant)
✔ Works with saltwater pools
✔ Built-in flow sensor (prevents dry firing)
✔ Freeze protection
✔ Compact wall-mount design
✔ Quiet operation (no combustion)