Where's the insulation?

[Chas]

Most of the Caldera models do not have insulation on the back of the spa shell in the motor compartment, and on some models that motor compartment does span the entire side of the tub.

The bottom of the motor compartment does have some insulation.

The vent pipe takes motor heat away from the area.

It works.

The HotSpring tubs are probably less expensive to run - they have fully integrated the insulation into all four sides by wrapping the motor compartment in a box and putting a good layer on all sides and bottom. But I have not noticed a huge difference in the two here in a mild climate.

Cola, did that meet with your approval?

8-)

[Repeat_Offender]

If they don't produce that much heat, then why are there vents? Huh, maybe to release the heat they produce and allow them cool. This is neccesary for maximum life. Some of the manufacturers that do this are Hot Springs and Jacuzzi, but I guess they don't know what they're doing.
   Tileman
This is straight from the Hot Spings wesite.''In addition, our patented hot tub pump shroud vents heat from the equipment compartment. This creates a cooler working environment for the motors and electronic components, contributing to a longer life for your Hot Spring® spa.''

No one said they didn't have to be vented, that's why the motors have slots in the casing. ODP, the "O" stands for open. The misconception is that the pump motors are uninsulated so they can heat the spa water. Any heat they produce is a byproduct and not an engineered benefit. Anyone who says any different is either ignorant or has an agenda.

[tileman]

I give up, better things to do.

[Cola]

OK
OK
OK
Thanks for the reply Chas

The End.

[Cgy_Spa]

From the HS website:
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"W INTERIZING YOUR SPA
Your Hot Spring spa has been designed for year-round use in any climate. Here are some steps you may want to take this time of year to ensure maximum energy efficiency.

If you live in an area which has freezing temperatures, you should purchase a Winter Blanket which is available at your local Hot Spring spa dealer. This vinyl-covered, fiberglass insulated blanket, which installs inside the equipment compartment door, provides an additional precaution against partial freezing of some of the components and maximizes the spa's energy efficiency"
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http://www.hotspring.com/Hot_Tub_Customers/spa_care.html


Should this not apply then to Caldera and Hot Spot spas?  
Also, HS dealers:  are there warranty issues with a DYI approach, or does one have to buy the insulation from a HS dealer?