NOTE:
A mixing valve
(which automatically allows cold water to mix into the hot water)
is highly
recommended for single tank systems if small children or elderly people are present and
can be installed by your plumber. Drawings are included showing the connections.
We Hope Your installation Went Smoothly!!
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QUESTIONS OR COMMENTS:
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Thank You and Now Enjoy the Savings!
11.0.
QUESTIONS AND ANSWERS:
HOW DO I GET THE MOST EFFICIENCY
FROM MY SOLAR WATER HEATER?
As a standard electric water heater usually has two
elements, having an electrician disconnect the lower
element will increase the efficiency of the solar
system. This is because of what is know as “The First
Law of Solar”, which is “Keep It Cool”. In other
words, the lower the temperature a collector can work
at, the greater its efficiency and the more energy it can
deliver.
Street water is usually 55 to 60 degrees F but an
element at the bottom of the tank will heat this water
electrically to at least 110 degrees F nearing the
collector must do its job starting at 110 degrees F
rather than 55 or 60 degrees F. It is easy to see that
more electricity will be used. When disconnecting the
lower element it is important to be aware that you will
have less continuous supply of water on cloudy days
because only the upper element is heating the water.
By “staging” the use of water (not having two showers
going at once, etc.), the element has time to “recover”
the water temperature on cloudy days, so this
problem is easily overcome.
Another easy method to increase storage efficiency is
to have a 220-volt timer installed by an electrician. It
will activate the element for 3 hours in the early
morning (say from 5AM to 8AM) for showers etc. and
on again in the early evening (say from 4PM to
10PM) for evening use if solar gain hasn’t been good
that day. This greatly increases the solar efficiency by
not allowing the element to come on during hours of
solar gain as well as keeping it off during non-use
nighttime hours. Ideally, it is most efficient to
completely turn off the electricity in sunny weather.
WHAT ABOUT FREEZE PROTECTION?
The SolarRoofs.com's closed loop Thermosyphon
Propylene Glycol Antifreeze heat exchange system's
collector as well as feed and return lines, when
properly installed, will not be damaged by (ambient)
hard freeze temperatures as low as 60 degrees F below
zero. In freezing situations, the solar storage tank
must be kept in an area above 32 degrees F.
WHAT ABOUT HIGH TEMPERATURES?
The Fireball 2001 collector will not be damaged by
stagnation in ambient temperatures as high as 116 F.
Summary of Contents for Fireball 20014
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