RADIAWRAP
A water heater has a thermostat that
is set to maintain a constant water
temperature. Throughout the day, even
when not being used, a water heater
loses heat causing the water heater to
work day and night to maintain the set
temperature. Without even knowing,
homeowners are spending substantial
amounts of money on lost heat. The
RadiaWrap Insulation Kit solves this
problem by insulating a water heater
and reflecting lost heat back into the
tank.
The RadiaWrap Insulation Kit has been proven to save up to 20% on
water heating costs. In addition to this great savings, the water in a
water heater stays hotter longer and homeowners gain more hot water
without buying a bigger tank.
Kit includes:
• 48” x 123” sheet of RadiaSource
• 15’ of foil tape
• 20 foam tabs
Tools required for installation:
• Scissors or utility knife
• Tape measure
www.RadiaSource.com
RADIAWRAP INSTALLATION GUIDE
1. Clean water heater with damp cloth or rag. Allow to completely
dry before installing wrap.
2. Create four equally spaced rows of five foam tabs around water
heater. Begin first row at top of tank and last row near bottom of
tank with the other three rows equally spaced between top and
bottom rows.
3. Trim a 1” piece of foil tape and tack top corner of RadiaSource
sheet so 48” side runs up and down water heater. Wrap
RadiaSource sheet around water heater until the two ends meet.
Cut material to proper length (varies depending on circumference
of water heater) and tape vertical seam with foil tape. Excess
material will be used in step four. Tack another piece of foil tape
opposite the first at top of tank. Note: if water heater is taller
than 48”, repeat this step to cover exposed areas. Trim around
pressure valve and on sides of thermostat to create a flap cover
for easy access.
4. For gas water heaters: use excess material to cut two ½” circles
and install on top of tank. Cut at least a 1” clearance around
water pipes and exhaust vent. Secure material to top of tank with
foil tape. Warning: do not cover exhaust opening on top of
tank. Flue vent must be left in place over exhaust opening. For
electric water heaters: use excess material to cut a circular piece
to cover top of tank. Cut slits for wires, pipes and relief valve.
Secure material to top of tank with foil tape.
NOTE
Gas Heaters: Recommended for gas water heater only if the owners or
operating manual provides instructions for insulating the water heater.
Electric Heaters: Check to be sure the heater is wired to meet local
building specifications.
All Heaters: Review your owner’s manual and follow any installation
instructions it provides for insulating a water heater.