Duda Diesel LLC
7055A Greenbrier Rd
Madison, AL 35756

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• Phone Orders: (256) 340-4866
• Toll Free: 1-855-DUDA-BIO
• Fax: (866) 568-3412
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Store > Solar Water Heaters
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For LTL or Truckload Quotes, please email a sales rep or call us during normal business hours.

Our Solar Water Heaters are OG-100 SRCC certified and eligible for the Federal government tax rebate. For more information about the Tax Rebate, please see the Database of State Inventives for Renewables & Efficiency.
solar water heater system
100 Liter Solar Water Heater System
• 15 Tube Heater, 100 Liter (26.4 Gallon) Tank
• All Basic Parts Included - Full System
• Active Solar Heater / Winter Resistant System
QTY
$Ea.
1+
1,650
In stock
Contact for Freight
pressurized solar water heater full system
150 Liter Solar Water Heater System
• 18 Tube Heater, 150 Liter (40 Gallon) Tank
• Active Solar Heater / Winter Resistant System
• Dual Coil Stainless Steel Solar Water Storage Tank
QTY
$Ea.
1+
1,975
Out of stock.
Restocks in about 6 days
Contact for Freight
pressurized solar water heater full system
250 Liter Solar Water Heater System
• 24 Tube Heater, 250 Liter (66 Gallon) Tank
• Active Solar Heater / Winter Resistant System
• Dual Coil Stainless Steel Solar Water Storage Tank
QTY
$Ea.
1+
2,350
Out of stock.
Restocks in about 6 days
Contact for Freight
pressurized solar water heater full system
300 Liter Solar Water Heater System
• 30 Tube Heater, 300 Liter (80 Gallon) Tank
• Active Solar Heater / Winter Resistant System
• Dual Coil Stainless Steel Solar Water Storage Tank
QTY
$Ea.
1+
2,675
In stock
Contact for Freight
pressurized solar water heater full system
400 Liter Solar Water Heater System
• 48 Tube Heater, 400 Liter (105 Gallon) Tank
• Active Solar Heater / Winter Resistant System
• Dual Coil Stainless Steel Solar Water Storage Tank
QTY
$Ea.
1+
3,495
In stock
Contact for Freight
pressurized solar water heater full system
500 Liter Solar Water Heater System
• 60 Tube Heater, 500 Liter (132 Gallon) Tank
• All Basic Parts Included - Full System
• Active Solar Heater / Winter Resistant System
QTY
$Ea.
1+
3,925
In stock
Contact for Freight
600 liter solar water heater system
600 Liter Solar Water Heater System
• 72 Tube Heater, 600 Liter (159 Gallon) Tank
• All Basic Parts Included - Full System
• Active Solar Heater / Winter Resistant System
QTY
$Ea.
1+
4,675
In stock
Contact for Freight
700 liter solar water heater system
700 Liter Solar Water Heater System
• 84 Tube Heater, 700 Liter (185 Gallon) Tank
• All Basic Parts Included - Full System
• Active Solar Heater / Winter Resistant System
QTY
$Ea.
1+
5,399
In stock
Contact for Freight
750 liter solar water heater system
750 Liter Solar Water Heater System
• 90 Tube Heater, 750 Liter (198 Gallon) Tank
• Active Solar Heater / Winter Resistant System
• Dual Coil Stainless Steel Solar Water Storage Tank
QTY
$Ea.
1+
5,975
In stock
Contact for Freight
18 tube solar water heater collector
Solar Water Collector
• 18 58mm x 1800mm Vacuum tubes for Active Solar Systems
• Winter Resistant - Glycol System & Separated Tank
• SRCC Certified for 30% Federal Tax Rebate
QTY
$Ea.
1+
625
2+
599
4+
565
6+
555
8+
545
Out of stock.
Restocks in about 6 days
Contact for Freight
24 tube solar water heater collector
Solar Water Collector
• 24 58mm x 1800mm Vacuum tubes for Active Solar Systems
• Winter Resistant - Glycol System & Separated Tank
• SRCC Certified for 30% Federal Tax Rebate
QTY
$Ea.
1+
825
2+
795
4+
750
6+
724
8+
699
In stock
Contact for Freight
30 tube solar water heater collector
Solar Water Collector
• 30 58mm x 1800mm Vacuum tubes for Active Solar Systems
• Winter Resistant - Glycol System & Separated Tank
• SRCC Certified for 30% Federal Tax Rebate
QTY
$Ea.
1+
995
2+
945
4+
899
6+
849
12+
750
In stock
Contact for Freight
15 tube passive solar water heater
150 Liter Passive Solar Water Heater
• 15 58mm x 1800mm Vacuum tubes
• 150 Liter (40 Gallon) Storage Tank
QTY
$Ea.
1+
895
In stock
Contact for Freight
20 tube passive solar water heater
200 Liter Passive Solar Water Heater
• 20 58mm x 1800mm Vacuum tubes
• 200 Liter (53 Gallon) Storage Tank
QTY
$Ea.
1+
1,195
In stock
Contact for Freight
25 tube passive solar water heater stainless steel girls
250 Liter Passive Solar Water Heater
• 25 58mm x 1800mm Vacuum tubes
• 250 Liter (66 Gallon) Storage Tank
QTY
$Ea.
1+
1,495
In stock
Contact for Freight
30 tube passive solar water heater stainless steel tank
300 Liter Passive Solar Water Heater
• 30 58mm x 1800mm Vacuum tubes
• 300 Liter (80 Gallon) Storage Tank
QTY
$Ea.
1+
1,795
In stock
Contact for Freight
solar water heater working station with controller and pump asse
Solar Heater Working Station
• 8L Expansion Capacity
• 3-Speed pump, expansion vessel, Controller
• Pressure Gauge, Fully Assembled
QTY
$Ea.
1+
395
In stock
QTY
30 tube solar collector for pools
Solar Water Collector for Pools
• 30 58mm x 1800mm Vacuum tubes
• Non-Pressurized, 5 Year Warranty
• Up to 35,300 Btu/Day of Heating to a Pool
QTY
$Ea.
1+
599
2+
550
4+
525
8+
499
12+
475
In stock
Contact for Freight
pool solar water heater manifold
Pool Collector Replacement Manifold
• Replaces manifold on unpressurized pool solar water collector
• 5 year Warranty
QTY
$Ea.
1+
249
In stock
QTY
1/2" stainless steel flexible tubing
1/2" Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 1/2" ID
• Makes solar installations cost effective and quick to install
• Get fittings pre-installed to your hose by purchasing fittings with installation
QTY
$Ea.
1+
2.49
10+
2.25
50+
1.99
164+
1.75
328+
1.60
In stock
QTY
image coming soon
10 Pack of Vacuum Tubes
• 58mm x 1800mm Vacuum tubes for Active Solar Systems
• Replacement Spare Tubes
• Warranty: 15 Years
QTY
$Ea.
1+
129.95
2+
119.95
4+
109.95
6+
99.95
12+
89.95
In stock
Contact for Freight
3/4" corrugated stainless steel tubing
3/4" Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 3/4" ID
• Makes solar installations cost effective and quick to install
• Get fittings pre-installed to your hose by purchasing fittings with installation
QTY
$Ea.
1+
3.99
10+
3.49
50+
2.99
164+
2.49
328+
2.25
In stock
QTY
1" stainless steel corrugated tubing
1" Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 1" ID
• Makes solar installations cost effective and quick to install
• Get fittings pre-installed to your hose by purchasing fittings with installation
QTY
$Ea.
1+
4.99
10+
4.25
50+
3.75
164+
3.25
328+
2.75
In stock
QTY
flexible stainless steel tubing fitting
1/2" Female Tubing Fitting
• 1/2" Straight Thread female with sealing gasket and locking ring
• Installs onto 1/2" Flexible stainless steel tubing
• Choose install option to have installed onto an order for tubing (buy in pairs)
QTY
$Ea.
1+
2.75
5+
2.65
10+
2.50
25+
2.35
100+
2.20
In stock
QTY
3/4" fitting for flexible stainless steel tubing
3/4" Female Tubing Fitting
• 3/4" Straight Thread female with sealing gasket and locking ring
• Installs onto 3/4" Flexible stainless steel tubing
• Choose install option to have installed onto an order for tubing (buy in pairs)
QTY
$Ea.
1+
3.50
5+
3.35
10+
3.15
25+
3
100+
2.75
In stock
QTY
100 liter solar water heater tank
100 Liter Solar Water Heater Storage Tank
• 100 Liters = 26.4 Gallons
• Stainless Steel Tank, Single Built-in Heat Exchanger
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
580
In stock
Contact for Freight
fittings for stainless steel tubing
1" Female Tubing Fitting
• 1" Straight Thread female with sealing gasket and locking ring
• Installs onto 1" Flexible stainless steel tubing
• Choose install option to have installed onto an order for tubing (buy in pairs)
QTY
$Ea.
1+
3.99
5+
3.84
10+
3.64
25+
3.49
100+
3.24
In stock
QTY
100 liter solar water heater tank dual copper coils
100 Liter Solar Water Heater Storage Tank
• 100 Liters = 26.4 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
699
In stock
Contact for Freight
corrugated stainless steel tube fitting installation tool box
ToolBox Kit for 1/2" & 3/4" Stainless Steel Tubing
• Kit for installing fittings to 1/2" & 3/4" Stainless Steel Tubing
• Includes pipe cutter with quick release
QTY
$Ea.
1+
99
In stock
QTY
1/2 fitting tool for flexible corrugated stainless tubing
Fitting Tool for 1/2" Stainless Tubing
• For Installing Fittings on Flexible Stainless Steel Tubing
• Installs fittings to 1/2" Flexible stainless steel tubing
QTY
$Ea.
1+
29.95
In stock
QTY
3/4 fitting tool for flexible corrugated stainless tubing
Fitting Tool for 3/4" Stainless Tubing
• For Installing Fittings on Flexible Stainless Steel Tubing
• Installs fittings to 3/4" Flexible stainless steel tubing
QTY
$Ea.
1+
39.95
In stock
QTY
Automatic Air Vent
Automatic Air Vent
• Removes air from solar or boiler system
• Max 1.6 MPa = 235 psi
• 1/2" Male Pipe Thread, Adjustable pressure settings
QTY
$Ea.
1+
12.95
2+
12.50
5+
11.95
10+
10.95
25+
9.75
In stock
QTY
thermal conducting paste
Thermal Conduction Compound, 80g Tube
• For use on Solar Water Heater Heat Pipes
• Helps heat transfer from heat pipe to manifold
• Temperature Range: -50°C~200°C
QTY
$Ea.
1+
7.95
2+
7.75
5+
6.95
10+
5.95
25+
4.95
In stock
QTY
1/2" rubber pipe insulation
1/2" Rubber Pipe Insulation
• 1.6 Meters (5.25 Ft) per Piece
• Rubber insulation, approved for hot pipes in solar systems
• Fits 1/2" Copper & 1/2" Flexible Stainless Steel Piping
QTY
$Ea.
1+
2.75
5+
2.25
10+
1.99
25+
1.79
100+
1.59
In stock
QTY
solar water heater storage tank with built-in heat exchanger
150 Liter Solar Water Heater Storage Tank
• 150 Liters = 40 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
825
In stock
Contact for Freight
3/4" rubber pipe insulation
3/4" Rubber Pipe Insulation
• 1.6 Meters (5.25 Ft) per Piece
• Rubber insulation, approved for hot pipes in solar systems
• Fits 3/4" Copper & 3/4" Flexible Stainless Steel Piping
QTY
$Ea.
1+
3.50
5+
2.99
10+
2.50
25+
2.24
100+
1.99
In stock
QTY
solar water heater storage tank with built-in heat exchanger
250 Liter Solar Water Heater Storage Tank
• 250 Liters = 66 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
950
Out of stock.
Restocks in about 6 days
Contact for Freight
pre-insulated stainless steel tubing
1/2" Pre-Insulated Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 1/2" ID
• Makes solar installations cost effective and quick to install
• Get fittings pre-installed to your hose by purchasing fittings with installation
QTY
$Ea.
1+
3.50
In stock
QTY
3/4" pre-insulated corrugated stainless steel flexible tubing
3/4" Pre-Insulated Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 3/4" ID
• Makes solar installations cost effective and quick to install
• Get fittings pre-installed to your hose by purchasing fittings with installation
QTY
$Ea.
1+
5.50
In stock
QTY
aluminum wrap for protecting insulation
Aluminum Pipe Wrap
• Length: 141", Width: 1.77"
• 11.75 Foot Roll
• Shield Pipe Insulation from UV Rays
QTY
$Ea.
1+
3.99
In stock
QTY
solar water heater storage tank with built-in heat exchanger
300 Liter Solar Water Heater Storage Tank
• 300 Liters = 80 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
1,095
In stock
Contact for Freight
solar water heater heat dump dissipater
HD-25 Heat Dissipater
• Passive Heat Dump, Dissipates > 1.3kW worth of heat
• Handles overheating for a 30 tube 58mm Solar Water Collector
• Copper Pipe Connection, Anodized Aluminum Fins
QTY
$Ea.
1+
249
2+
239
3+
234
4+
229
5+
224
In stock
QTY
400 Liter Solar Water Heater Tank with Dual Coil
400 Liter Solar Water Heater Storage Tank
• 400 Liters = 105 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
1,375
In stock
Contact for Freight
EPDM pre-insulated stainless steel corrugated tubing
1/2" EPDM Pre-Insulated Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 1/2" ID
• Makes solar installations cost effective and quick to install
• EPDM Insulation is weather resistant, High Temp (175°C/347°F) and well insulating
QTY
$Ea.
1+
4.25
In stock
QTY
solar water heater storage tank with built-in heat exchanger
500 Liter Solar Water Heater Storage Tank
• 500 Liters = 132 Gallons
• Stainless Steel Tank, Single Built-in Heat Exchanger
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
1,395
In stock
Contact for Freight
EPDM pre-insulated stainless steel corrugated tubing
30m roll of 1/2" EPDM Pre-Insulated Corrugated Flexible Stainless Steel Tubing
• 30m/98.5ft per Quantity, 1/2" ID
• Makes solar installations cost effective and quick to install
• EPDM Insulation is weather resistant, High Temp (175°C/347°F) and well insulating
QTY
$Ea.
1+
325
In stock
QTY
solar water heater storage tank with built-in heat exchanger
500 Liter Solar Water Heater Storage Tank
• 500 Liters = 132 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
1,495
In stock
Contact for Freight
EPDM pre-insulated stainless steel corrugated tubing
3/4" EPDM Pre-Insulated Corrugated Flexible Stainless Steel Tubing
• 1 Foot per Quantity, cut per order, 3/4" ID
• Makes solar installations cost effective and quick to install
• EPDM Insulation is weather resistant, High Temp (175°C/347°F) and well insulating
QTY
$Ea.
1+
5.75
In stock
QTY
Submersible water pump for charging solar systems
Submersible Water Pump
• 0.37 KW, 110v AC/60Hz Input Power
• Max Head 65 ft, Max Flow 22 gpm, 1" Hose Barb Outlet
• Use for initial solar system charges
QTY
$Ea.
1+
109
In stock
QTY
inhibited propylene glycol
1 Gallon Inhibited Propylene Glycol
• Environmentally Friendly & Drink Safe Antifreeze
• 99.9% Food Grade USP
• Use in Solar Systems, refrigeration applications
QTY
$Ea.
1+
29.95
2+
28.95
4+
27.46
6+
26.46
8+
25.46
In stock
QTY
600 liter dual coil solar water heater stainless steel tank
600 Liter Solar Water Heater Storage Tank
• 600 Liters = 159 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
1,865
In stock
Contact for Freight
EPDM pre-insulated stainless steel corrugated tubing
30m roll of 3/4" EPDM Pre-Insulated Corrugated Flexible Stainless Steel Tubing
• 30m/98.5ft per Quantity, 3/4" ID
• Makes solar installations cost effective and quick to install
• EPDM Insulation is weather resistant, High Temp (175°C/347°F) and well insulating
QTY
$Ea.
1+
475
In stock
QTY
Solar Heater Controller
TK-SC6 Electronic Solar Heater Controller
• System Controller
• 110v AC Input/Output
• For Solar Water Heater Systems
QTY
$Ea.
1+
109.95
In stock
QTY
solar collector sensor
Solar Water Heater Collector Sensor
• Model pt1000
• For Solar Collector temperature sensing
• 1 Meter Long wire
QTY
$Ea.
1+
12.95
2+
11.95
5+
10.95
10+
9.95
25+
8.95
In stock
QTY
600 liter dual coil solar water heater stainless steel tank
700 Liter Solar Water Heater Storage Tank
• 700 Liters = 185 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
2,199
In stock
Contact for Freight
solar water tank temperature sensor
Solar Water Heater Tank Sensor
• Model 10k, B=3950
• For Tank or pipe temp sensing
• 1 Meter Long wire
QTY
$Ea.
1+
9.95
2+
8.95
5+
7.95
10+
6.95
25+
5.95
In stock
QTY
5 gallons of inhibited propylene glycol
5 Gallons Inhibited Propylene Glycol
• Environmentally Friendly & Drink Safe Antifreeze
• 99.9% Food Grade USP
• Use in Solar Systems, refrigeration applications
QTY
$Ea.
1+
119
2+
117
4+
114
8+
109
In stock
QTY
750 liter dual coil solar water heater tank
750 Liter Solar Water Heater Storage Tank
• 750 Liters = 198 Gallons
• Stainless Steel Tank, Dual Built-in Heat Exchangers
• Electric Backup Heating with Thermostat Housing
QTY
$Ea.
1+
2,225
In stock
Contact for Freight
SR802 high power relay for solar water heater
SR802 High Power Relay
• For use with Backup Water Heating Element in Tank
• 110v AC Input, Max Device Current: 25 Amps
• For Solar Water Heater Systems
QTY
$Ea.
1+
34.95
In stock
QTY
TK-7 passive solar water heater controller
TK-7 Passive Solar Water Heater Controller
• 110v Input Power
• Pipe Heating: <500 Watts, Water Heating: <2000 Watts
• For pressurized and non-pressurized passive solar water heaters
QTY
$Ea.
1+
64.95
In stock
QTY
stainless steel thermowell
1/2" Thermowell
• Install into piping or solar tank for insertion of sensors
• 1/2" Threaded Port, Stainless Steel
• For inserting sensor into fluids/piping
QTY
$Ea.
1+
12.95
In stock
QTY
magnesium rod
Magnesium Rod
• Sacrificial anode for stainless steel water tanks
• Extends life expectancy of water tanks
• Use for soft water and semi-hard water applications
QTY
$Ea.
1+
19.95
In stock
QTY
zinc aluminum replacement anode rod for solar water heaters
Aluminum-Zinc Rod
• Sacrificial anode for stainless steel water tanks
• Extends life expectancy of water tanks
• Use for hard water applications
QTY
$Ea.
1+
19.95
In stock
QTY
wilo hot water circulation pump side view
Wilo Solar Water Heater Circulation Pump
• Variable Speed Pump 52/75/96 Watts
• 115v AC - All Metal Casing
• NPT Fittings Included
QTY
$Ea.
1+
159.95
In stock
QTY
PEX-AL-PEX tubing
100 M Roll of 1/2" ID Grade A Pex-Al-Pex Tubing
• 1 Roll = 100 Meters = 320 Feet
• With Oxygen Barrier
• Working Temp: -40°C to 95°C
QTY
$Ea.
1+
89.95
2+
84.95
3+
79.95
5+
74.95
10+
69.95
In stock
QTY
PEX-AL-PEX tubing
300 M Roll of 1/2" ID Grade A Pex-Al-Pex Tubing
• 1 Roll = 300 Meters = 960 Feet
• With Oxygen Barrier
• Working Temp: -40°C to 95°C
QTY
$Ea.
1+
255
2+
225
3+
209
5+
199
10+
189
In stock
QTY
3/4" PEX-AL-PEX
100 M Roll of 3/4" ID Grade A Pex-Al-Pex Tubing
• 1 Roll = 100 Meters = 320 Feet
• With Oxygen Barrier
• Working Temp: -40°C to 95°C
QTY
$Ea.
1+
175
2+
165
3+
160
5+
155
10+
150
Out of stock.
Restocks in about 52 days
QTY
  

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