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Caldera Spa Energy Pro Heater 2001 - 2015 models - 74912

$318.84 $375.10
(You save $56.26)

Product Description

Caldera Spa Low Flow Heater For 2001 - 2015 Utopia and Paradise Model #74912

Includes Installation Kit

Please Note: 2001 Models need adapter kit 75002


  • Geneva
  • Niagra
  • Elation
  • Aspire
  • Moorea
  • Salina
  • Tahitian
  • Hawaiian
  • Martinique
  • Kauai

Removing the Low Flow Heater:

  1. Disconnect Power to the spa and access the equipment/pump compartment
  2. Access the control box.
  3. Disconnect the heater and pressure switch connector wires from the terminals.
  4. Disconnect the copper bonding wire attached to the side of the heater or control box. (if necessary).
  5. Unscrew the heater at the base from the floor of the equipment compartment.
  6. If the spa is undrained, clamp inlet and outlet hose 6 inches from the heater inlet and outlet barb fittingswith hose clamps.
  7. Slide the hose retaining clamps back towards the hose clamps allowing enought room to pull the hoses from the heater barbbed fittings.
  8. Remove the pressure switch and attached to new heater.


  1. Install the new heater in the reverse order of removal
  2. Note: Allow a 1”-2” loop of wire between the control box and the power terminals. This is
    called a service loop, and will allow for the use of an amp clamp in future troubleshooting.
  3. After installation check for leaks.


Write A Review

Showing reviews 1-10 of 12 | Next

  1. Great replacement heater

    Posted by Jason on 29th May 2023

    My original heater went out and this replacement works like it should fair price and fast delivery.

  2. Perfect replacement

    Posted by Denis on 27th Dec 2021

    The 2012 Geneva spa had a small plastic part between the heater and pump which also contained the pressure switch. Of course small plastic part cracked and failed and I couldn’t find to replace. Caldera spa parts plus had the best price on the replacement heater which contained the pressure switch and it was a simple replacement. I found a few cheaper models but they looked like cheap knock offs, very happy with the part and works perfect.

  3. Great service

    Posted by Unknown on 11th Oct 2021

    I had the part within a week of ordering and fitted it in a short amount of time and works great.

  4. Great customer service

    Posted by Unknown on 23rd Dec 2020

    The heater went out of course during the coldest week of the year. The part was back ordered but the service department kept us up to date when it was to be expected. Appreciated the attention to detail.

  5. Works great

    Posted by Juan c Riquelme on 1st Aug 2017

    Unit easily swapped out with old design. Fires right up and had my spa back to temp within twtwo hours

  6. Excellent replacement

    Posted by Joshua on 13th Jul 2016

    Replacement heater was a perfect replacement for my failed heater. Everything you needed was included. The new design of this heater incorporates the pressure switch inside the heater itself, instead of screwing into the bottom. This would of been helpful to know before purchasing a separate switch. This could potentially be an issue if the pressure switch fails, since it's inside he heater itself. Heater is working perfectly and only took about 45 mins to install.

  7. Easy install +++

    Posted by Brent Tanner on 16th Jun 2014

    This is a newer version of the old heater, so there is no vacuum switch to replace. Remove the power lead from the vacuum switch and plug in the new power lead and you are done ! My 2005 Caldera Aspire works like new again !
    Thank you very much !

  8. Tech help

    Posted by Unknown on 13th Feb 2014

    I had a small issue with our spa heater and circuit board but after e-mailing back and forth with the tech help we solved the problem. They are very knowledgeable about the products and great to work with. This was a great experience.

  9. working great

    Posted by Unknown on 17th Jun 2013

    Easy to replace the part. Wonderful to have our hot tub back in working order!

  10. Great Product, Service and Install directions

    Posted by Phil Rondeau on 20th May 2013

    The service team helped me trouble shoot the problem with confidenc. The parts arrived with all the fixins to facilitate me making a professional installation and all is working fine. Great experience.

Showing reviews 1-10 of 12 | Next

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