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Revolutionary insulation system 2014

The Hydropool engineers put their heads together and came up with the idea to copy the technology from NASA… For years, Hydropool has used a full spray foam technique to insulate their hot tubs, but recently there has been an advance technology created that can have huge benefits to their customers.

No matter how cold you think it can get in Canada, nothing compares to being in outer space. Space temperatures have enormous ranges, from +300 to -300 degrees. The space program has spent millions developing an insulation technology that will allow for safety of an astronaut in these temperatures. We figured, if it can handle -300, it surely can handle anything Canada can throw at it.

Energy Efficiency

Hydropool hot tubs are engineered to be the most energy efficient swim spa in the world, providing 100˚F / 37˚C for pennies a day.

Self-cleaning technology


Your Hydropool hot tub filters 100% of the water every 15 minutes. This means that the hot tub does not have to be operating as often in order to filter the same amount of water as our competitors, making it the most energy efficient filtration system in the world.


Hydrowise heat shield hardcover


This heavy-duty safety hardcover contains an insulated baffle in the fold area, locking the heat in and the cold out.


Insulated thermal shield blanket


Triple thermal shield technology uses aluminum foil to reflect heat back into the hot tub, as well as black backing and pipes designed to maximize heat absorption. This very same technology is used by NASA to protect its astronauts from the -270 degree cold of outer space.


Low amperage evergreen pump


Our pumps are engineered to produce high flow rates with low energy output, resulting in filtration that is 26% more efficient than the competition.


Eco-heat exchange technology


Each pump creates 1.5 kW of waste heat and our triple thermal shield blanket reflects that heat back into our hot tub cavity.

HydroWise thermal vents maximize energy efficiency for any season and any climate.


Programmable controls

Select your desired water temperature and your hot tub will automatically maintain this setting while conserving as much energy as possible.


Designed to exceed CEC regulations


Hydropool hot tubs are ranked in the top three globally for stand-by wattage and energy efficiency, and were one of the first to be approved under the strict California Energy Commission regulations.


With the new technology available, it freed up more space in the cavity of the tub, thus allowing for an additional thermal layer. By insulating the floor and the cabinet we were able to use the pump heat to heat in the cavity, therefore creating an additional thermal layer to add to an already outstanding insulation technique. (See figue 2). This system also allows for control during the warmer months using a venting system, which will help cool the pumps. (See figure 3).

View our hot tubs.

Typical per-unit-thickness R-values for material

R-values per inch given in SI and Imperial units (Typical values are approximations, based on the average of available results. Ranges are marked with “–”. Clicking on SI column sorts by median value of range, clicking on Imperial column sorts by lowest value. Third column are real SI values that are not per inch. Based on the units, the two last columns should have a conversion factor of 5.71. In practice, the numbers will have been measured using different methods.)

Vacuum insulated panel5.28–8.8R-30–R-50
Silica aerogel1.76R-10
Polyurethane rigid panel (CFC/HCFC expanded) initial1.23–1.41R-7–R-8
Polyurethane rigid panel (CFC/HCFC expanded) aged 5–10 years1.10R-6.25
Polyurethane rigid panel (pentane expanded) initial1.20R-6.8
Polyurethane rigid panel (pentane expanded) aged 5–10 years0.97R-5.5
Foil faced Polyurethane rigid panel (pentane expanded)  45-48 [14]
Foil-faced polyisocyanurate rigid panel (pentane expanded ) initial1.20R-6.855 [14]
Foil-faced polyisocyanurate rigid panel (pentane expanded) aged 5–10 years0.97R-5.5
Polyisocyanurate spray foam0.76–1.46R-4.3–R-8.3
Closed-cell polyurethane spray foam0.97–1.14R-5.5–R-6.5
Phenolic spray foam0.85–1.23R-4.8–R-7
Thinsulate clothing insulation1.01R-5.75
Urea-formaldehyde panels0.88–1.06R-5–R-6
Urea foam[15]0.92R-5.25
Extruded expanded polystyrene (XPS) high-density0.88–0.95R-5–R-5.426-40[14]
Polystyrene board[15]0.88R-5.00
Phenolic rigid panel0.70–0.88>R-4–R-5
Urea-formaldehyde foam0.70–0.81R-4–R-4.6
High-density fiberglass batts0.63–0.88R-3.6–R-5
Extruded expanded polystyrene (XPS) low-density0.63–0.82R-3.6–R-4.7
Icynene loose-fill (pour fill)[16]0.70R-4
Molded expanded polystyrene (EPS) high-density0.70R-4.222-32[14]
Air-entrained concrete[17]0.69R-3.90
Home Foam[18]0.69R-3.9
Fiberglass batts[19]0.55–0.76R-3.1–R-4.3
Cotton batts (Blue Jean insulation)[20]0.65R-3.7
Molded expanded polystyrene (EPS) low-density0.65R-3.85
Icynene spray[16]0.63R-3.6
Open-cell polyurethane spray foam0.63R-3.6
Rock and slag wool batts0.52–0.68R-3–R-3.85
Cellulose loose-fill[21]0.52–0.67R-3–R-3.8
Cellulose wet-spray[21]0.52–0.67R-3–R-3.8
Rock and slag wool loose-fill[22]0.44–0.65R-2.5–R-3.7
Fiberglass loose-fill[22]0.44–0.65R-2.5–R-3.7
Polyethylene foam0.52R-3
Cementitious foam0.35–0.69R-2–R-3.9
Perlite loose-fill0.48R-2.7
Wood panels, such as sheathing0.44R-2.59 [23]
Fiberglass rigid panel0.44R-2.5
Vermiculite loose-fill0.38–0.42R-2.13–R-2.4
Straw bale[24]0.26R-1.4516-22[14]
Softwood (most)[25]0.25R-1.417.7 [23]
Wood chips and other loose-fill wood products0.18R-1
Hardwood (most)[25]0.12R-0.715.5 [23]
Poured concrete[15]0.014R-0.080.43-0.87 [23]