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| Our Code: ALNDX-80-40 |

Alternate
Energy Technologies
Sav'n'Sun DX Drainback System
The Natural Solution for Hot Water
DX-80-40
Sav’nSun
is a packaged, fully integrated residential hot water system designed for the
energy-minded homeowner who wants both savings and leading-edge technology that
contributes to a cleaner environment.
Sav’nSun is delivered complete with AET collectors, a 50, 80, or 120 gallon storage tank, top mounted Drainback Reservoir with heat exchanger, freeze-protected drainback design, fluid handling package, and back-up heating element, making the system suitable for all climates.
A Retrofit Kit is also available to convert any existing water heating system into a solar water heating system using the Drainback Reservoir with heat exchanger and Solar Collectors. Please contact us for sizing information.
DX Features:
![]() Reservoir Tank ![]() Finned Copper Coil |
Drainback Reservoir Tanks come in two sizes, 10 gallon & 15 gallon. They also come with or without an internal heat exchanger coil. The reservoir features a tank shell (0.040 copper construction), 0.026 aluminum jacket with baked enamel finish, 5/8"OD finned copper coil (10 gallon), 7/8" OD finned copper coil (15 gallon), vertical site glass, 3/4" copper pipe construction.
Major Component Package Includes:
At the heart of these systems are the AE Collectors with their solid copper absorber plates. Efficient solar energy absorbers begin with high thermal conductivity between the fin and tube. The AET welding process actually makes the tube one with the fin and creates a joint at least two times wider than the thickness of the copper fin, resulting in a clean. uninterrupted heat path unlike any other. AET absorbers have no soldered or crimped seam joints to weaken or fail. The forge welding actually strengthens the joint area, unlike other welding processes, such as ultrasonics, which causes a weakening of the fin around the joint area. AET uses the world's finest solar selective coating on their absorbers. The revolutionary Black Majic coating was developed by AET as a collaborative effort working with Coating Industry Professionals from broad based backgrounds. Black Majic is environmentally benign and boasts an emissivity of approximately 0.10 and absorptivity of approximately 0.95 !!! This premium absorber is encased in a solid extruded aluminum frame and covered by a sheet of durable, low iron, tempered glass. The collector plate is insulated from the aluminum frame by a layer of foil faced poly-isocyanurate foam on the sides and back. The foam, in turn, is protected in the rear by a layer of embossed aluminum. Finally the entire unit is gasketed all the way around by a high temperature silicone sealant.
| Part# | Description | Quantity | Weight/ea | ||||
| AET 4X10 Ae-Series, Crystal Clear Collector | 4 X 10 Collector | 1 | 153 lbs | ||||
| AET Standard Mount Kit for Ae Series | Standard Mounting Hardware | 1 | 2 lbs | ||||
| American Water Heater Company SE62-80H-045S 80 Gal Tank w/ Element | 80 Gallon Storage Tank | 1 | 191 lbs | ||||
| Eagle 2 Differential Temp. Controller w/ Display | Differential Control w/ Sensors | 1 | 3 lbs | ||||
| Taco 1/8 Hp Cast Iron Pump, 0-8 Gpm,Cp-009F | TACO C.I. Solar Pump | 1 | 10 lbs | ||||
| AET 3/4'' Cast Iron Flanges | TACO 3/4" C.I. Flange Set | 1 | 3 lbs | ||||
| AET 3/4'' Boiler Drain | 3/4" Boiler Drain | 1 | 0.5 lbs | ||||
| AET 10 Gal. SS DB Tank w/ Heat Exchanger | 10 Gal S.S. Drainback Res w/ 10s.f. Heat Ex. | 1 | 42 lbs | ||||
| Taco 1/40 HP Bronze Pump, 0-6 GPM, CP-003BC4 | TACO Pump - Bronze, 1/2" Sweat | 1 | 6 lbs | ||||
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Sizing Your System Sizing a solar water heater involves determining the total collector area and the storage volume required to provide 100% of your household's hot water during the summer. Solar storage tanks are usually 50-, 60-, 80-, or 120-gallon capacity. A small (50 to 60 gallon) system is sufficient for 1 to 3 people, a medium (80-gallon) system is adequate for a 3- or 4-person household, and a large (120-gallon) system is appropriate for 4 to 6 people.A rule of thumb for sizing collectors: allow about 20 square feet of collector area for each of the first two family members and 8 square feet for each additional family member if you live in the Sun Belt. Allow 12 to 14 additional square feet per person if you live in the northern United States. A ratio of at least 1.5 gallons of storage capacity to 1 square foot of collector area prevents the system from overheating when the demand for hot water is low. In very warm, sunny climates, experts suggest that the ratio should be at least 2 gallons of storage to 1 square foot of collector area. For example, a family of four in a northern climate would need 20 square feet of collector area for the first person, 20 for the second person, 12 to 14 for the third person, and 12 to 14 for the fourth person. This equals 64 to 68 square feet, multiplied by 1.5 gallons of storage capacity, which equals 96 to 102 gallons of storage. Because you might not be able to find a 96-gallon tank, you may want to get a 120-gallon tank to be sure to meet your hot water needs. Click here to use the Strut Calculator! Recommended Add-ons The following items are not included in the package, but will be useful for your installation:
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