water in your Sunbelt Spa stays warmer longer with lower
energy costs thanks to the ingenious Heat VaultT insulation
system built into the enclosure.
Rather than simply
filling the interior with foam as many spas do, the
Heat VaultT insulation system uses foam insulation on
the bottom of the shell, the floor of the enclosure,
and all four interior walls, creating a "dead air"
space completely surrounded by insulation. This is the
same principle as double-glazed glass in your patio
door, and it works for the very same reason:
dead air, surrounded by an insulator, traps heat more
efficiently than solid insulation itself.
The spa pumps arc
housed inside this insulated dead air space, which serves
two purposes: it protects the pumps from freeze-up when
the outside temperature falls below freezing (the pipes
and plumbing are also insulated!), and incidental heat
generated by the pump equipment adds to the insulating
warmth of the interior air space rather than being lost
to the outside.
Since the layers
of insulation on the interior walls and floor of the
enclosure are much thicker than the insulation on the
bottom of the shell, the trapped heat of the interior
air space rises up through
the bottom of the spa shell and contributes to the heat
of the water, effectively replacing the heat rising
off the surface.
Even under worst-case
conditions-including loss of power in sub-zero temperature-the
slow-release heat trap created by the HeatVault insulation
system will keep your spas water above freezing for
Benefits of Heat VaultT insulation
stays warmer, longer, with lower energy costs
heat generated by the spa pumps is effectively recycled
back into the spa (this not only lowers your spa's heating
costs, but also protects the pumps from overheating
by providing a useful method of dissipating the heat
pipes and plumbing are fully insulated against freezing
to internal plumbing and the spa's heater/pump systems
is easy; the side insulation actually attached to each
removable side panel; when the panels are removed for
service, the insulation is removed with the panel, allowing
for unobstructed access.