Raypak Digital E3T 5.5 KW Heater - 017121

Item #: 017121

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Item Details

Raypak Digital E3T Heater - 017121

The Electric 3-Series Titanium heater is the latest technology in pool and spa heating. The E3T is built with titanium heating elements and 316L stainless steel to withstand extreme pool water conditions, including salt water chlorinated pools. The E3T heater operates by utilizing the latest solid-state design and flow sensor technology. It has easy to use digital controls with diagnostics. The compact size makes it is easy to install for new construction or replacement installations.

The E3T is equipped with easy to use digital controls and diagnostics. The digital control center shows the desired set point and lets you set the temperature exactly where you want it. The easy to read display allows you to see temperature, GPM flow, and diagnostics. The intuitive alert system keeps you informed.


  • Electronic pool or hot tub heater
  • Easy to use digital controls and diagnostics
  • Titanium element designed for extreme water environments such as in spas and salt water
  • Solid state controls eliminates noisy and troublesome contactors for quiet, reliable operation
  • Advanced design allows the heater to modulate power, only using the energy necessary to maintain the desired temperature
  • Easy to install and easily replace any existing pool or spa heater
  • Comes standard with union connections
  • Latest flow sensor technology
  • 316L Stainless steel construction


  • Kilowatts: 5.5
  • BTU/HR: 18,767
  • Union Connections: 1-1/2"
  • Flow Rate: Minimum 15 Gallons Per Minute
  • Model: ELS-R-0011-1-T1
  • Volts: 240 Volt, Single Phase
  • Breaker(s) Required: (1) 30 Amp


  • 12-1/8" Height
  • 9" Width
  • 4-3/4" Depth

Raypak 017121

Customer Reviews

Based on 7 reviews
Done with this unit

now on my third heater copper vessel - corroding at the solder joint with the brass header
The water vessel is almost as expensive as the unit itself. Not buying another.

This quote from Raypak is just wrong:
Copper Water Vessel - The Raypak Electric Spa heater has a completely non-ferrous waterway. The cast brass headers are connected with an all copper water tank. This ensures that the spa water only comes in contact with a rust free environment. This helps keeps your spa rust stain free.

RaypakSpa Pak 5.5 KW Heater 001643

Love the heater, Raypak makes good products.

Your shipping policy still sucks!

Great for fitmax therapy pool!

I bought this for my fitmax therapy pool and though it took a lot of work and money (had to add a 30 amp line to my house and had to be professionally installed) - it works great and heats well!

good product for the money

Installed in my 16 round above ground pool that would not get above 82 ,in 4 hours it was 85 so the heater works good for me.

this one arrived when we

this one arrived when we were snowbirding. I installed it,& it takes two longer to bring temp up to 101 degrees then my old one .I shut it off when not using ,temp drops to 60-d.spa pak 11kw heater-els 1102was my old one,dident ,know was that much slower heating

Fast shipping!

We bought this heater when our old one quit. It works perfectly and we were very happy with how fast the order was processed.

Awesome heater

I bought this Raypak for my @1000 gal. IPool. It works so great! Easy to hook up to the filter and warms the pool enough in a hour or two to have a great workout. It sells for almost half at Hot Tub Warehouse then what the one dose through Ipool. It would be great for any small above ground pool that is hard to find a heater for and it is small so easily fits anywhere. I am a happy swimmer all year long!!

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