Rinnai HE Series How To Use Manual page 6

Tankless vs. Tank
If you grew up in a home with lots of people taking showers and running appliances, you've probably
experienced what it feels like when that big tank runs out of water. Not too fun, is it? So how can this
box, about the size of a suitcase, mounted to your wall keep your showers hot and your tubs full?
SUPER-HIGH-EFFICIENCY
TANKLESS
• Cold water enters inlet pipe only when hot
water is required
• Gas ignites heat exchangers, which heat
the water
• Heated water exits hot water outlet to travel
through pipes to where it is needed
• Heater will adjust flame output as needed to
ensure a temperature set point is maintained
• When no more hot water is required, system
shuts off until hot water is needed again
HOT WATER OUTLET COLD GAS INTAKE
WATER
INTAKE
Rinnai's line of digital controllers allows
you to set water temperature precisely
for multiple locations in your home.
To learn more visit rinnai.us.
Learn more at rinnai.us
A closer
look at the
comparison
STANDARD
TANK
• Large tank
requires more
Seriously. When you consider the space savings,
installation space
and management eco-efficiency and endless supply of hot water
that come with tankless technology, there is
• Water in tank
no comparison. But when you look at the cost
is heated and
savings over the long run, well, it just keeps
reheated to
getting better. More comfort for less money?
maintain desired
set temperature Talk about a no-brainer.
regardless of
usage or demand
• During times of
heavy use, water
can be depleted,
causing delays in
hot water supply
• In the event
of tank failure,
large amounts of
stored water can
cause extensive
damage to the
home
WATER HEATER OPERATING COST COMPARISON
TANK TECHNOLOGY
STANDARD 50-GALLON GAS STORAGE TANK
STANDARD 50-GALLON GAS STORAGE TANK
STANDARD 50-GALLON ELECTRIC STORAGE TANK
TANKLESS TECHNOLOGY
HIGH-EFFICIENCY NON-CONDENSING TANKLESS
HIGH-EFFICIENCY NON-CONDENSING TANKLESS
SUPER-HIGH-EFFICIENCY CONDENSING TANKLESS
SUPER-HIGH-EFFICIENCY CONDENSING TANKLESS
*As based on the average cost to run an electric tank water heater per the Department of Energy (DOE) Average Energy Costs (doe.gov)
FUEL TYPE/ENERGY SOURCE EF (ENERGY FACTOR) ANNUAL OPERATING COSTS*
NATURAL GAS 0.60
PROPANE 0.60
ELECTRICITY 0.95
FUEL TYPE/ENERGY SOURCE EF (ENERGY FACTOR) ANNUAL OPERATING COSTS*
NATURAL GAS 0.82
PROPANE 0.82
NATURAL GAS 0.96
PROPANE 0.96
$273
$658
$555
$199
$482
$170
$412
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