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Fafco Solar Hot Water HOT20 Techs and Specs
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DIMENSIONS
Roof Mounting Space: Width - (number of panels x 27") + 24", Length - Panel Length + 24"
Rack Space: Width - (number of panels x 27") + 2", Length - Panel Length + 6"
WEIGHT
Without water - 22 lbs or .49 lbs./ft²
Full of Water - 31 lbs. or .85 lbs./ft²
CHEMICAL RESISTANCE
Compatible with common collector fluids
WEATHERABILITY
Weatherometer, accelerated outdoor exposure, and other extensive laboratory testing demonstrates
long-term weatherability of solar collectors (refer to warranty).
ABSORPTIVITY
0.96
EMISSIVITY
0.90
DRAINBACK TANK
DIMENSIONS
33" x 18" x 5"
CAPACITY
10 gallons
WEIGHT
up to 80 lbs when water is at full mark
CIRCULATION MODULE
DIMENSIONS
11" x 11" x 9"
WEIGHT
Up to 20 lbs when plumbing lines are full of water.
VOLTAGE
120 Volts, 1.2 amps
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Install Location
For homes in the northern hemisphere, the best installation site is a roof facing true south.
Many homes do not have a roof that faces directly to true south. Use the following guidelines for
choosing which of your roof surfaces is best for your solar collectors:
- First choice is a roof facing due south
- Second choice is a roof facing between southeast and southwest
- Third choice is a roof facing between southeast and northeast, or southwest to northwest
- Fourth choice is a roof facing between northwest and northeast
Trees or other buildings must not shade the roof site. Keep in mind that as the seasons change, the sun
changes its location in the sky. Areas that are clear in the winter might be shaded by tree and shrub growth in
the summer. The sun appears lower in the southern sky during winter months, and higher during the summer
months. A solar surveying device (such as the one sold at www.solarpathfinder.com) may help determine the
best location for your solar collection setup.
Roof Pitch
The roof should have a minimum angle of 10 degrees. This is sometimes referred to as 2 in 12.
Detailed Instructions and Information
Please refer to the installation manual. Please note: An installation DVD is included
with each unit.
Installation Manual for Fafco Solar Hot Water HOT20
Fafco Solar Hot Water System HOT20 - Install manual in PDF
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