Effective insulation is extremely important for
hot tubs in order to reduce running costs to
The triple “Reflective Thermal Barrier” (RTB )
insulation of WELLIS spas utilizes thermal
gains from the spa’s equipment, collecting
any waste heat energy and reflecting it
back into the plumbing and shell, whilst
keeping out the colder outer air.
We’ve even built our RTB system into our
Thermal Spa covers which also have a special
reflective foil coating beneath them to
bounce rising heat back into the spa water.
This integrated energy management system means
WELLIS Spas are exceptionally economical to own.
Many spa manufacturers still use discredited
spray foam insulation whilst, a few still mount
the spa equipment, actually outside the spa
cabinet, beneath the steps.
These old legacy systems are both outdated as
well as expensive to run and damaging to our
– Very long lasting- constant Lambda value.
– Safe- non-toxic, non allergen,
– No condensation, no bacteria,
– Clean, odourless material, no smell,
– No fogging.
– Flexible and light weight material.
– Saves resources, very good insulation
– CFC free!