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Solar Water Heater Summary: How to choose solar water heaters from different solar water heating systems

Views: 2199     Author: Sunflower     Publish Time: 2012-09-20      Origin: Site

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With the time goes by, more and more people choose solar products. Solar water heater as a typical solar product, nowadays is popular and widely used for different areas, such as home, school, factory, hospital, industry, swimming pools and so on. Solar energy is free, so as a homeowner or project engineer, it is a wise choice to adopt solar water heating system, but with so many solar hot water supplier to choose from, it can be difficult to distinguish one system from another. Reasonable prices, quality design, Rich experience, and Superb customer service are what making Sunflower Solar the right choice for solar water heating systems.

 

Installing a Sunflower solar hot water system for your home has many immediate and long-term benefits.
1. Environment protection, solar energy is renewable and clean energy
2. Saves your utility bills for electricity or gas
3. Makes you eligible for cash rebates & incentives, because solar energy is free
4. Adds value to your home
5. No matter what your motivation, feel rest assured that with a Sunflower solar hot water system, you've made the right choice.
 
Then, how to choose a solar water heating system, before you making a choice, we would be very happy to introduce different types of Sunflower Solar water heaters and Solar collectors. 
 

Non-pressurizedPressurized
Model

Mounting positionInstall on the roof, take advantage of the potential energy from the height difference of roof and room, make water come out with pressureAny place which face sunshine
Water out pressureDepend on the gravity of water Equal to the water pressure from City water supply
Cold resitanceminus 5°Cminus 35°C
SystemWater in vacuum tube, if one tube broken, need to replace it, then the system could work.Adopt heat pipe technology, no water on tube, if one tube broken, the system could also work
PriceCheapExpensive

Follows are the brife description for different solar water heaters from Sunflower Solar

SFA Series Non-pressurized Solar Water Heater


TZ58/1800-12TZ58/1800-15TZ58/1800-18TZ58/1800-20TZ58/1800-24TZ58/1800-30
GENERAL PARA.
absorbing area (m2)1.6472.0852.4782.7553.314.142
operating pressure (bar)0
ambient temperature0-60 ℃
daily efficiency>=55%
empty weight (kg)465265717998
loading qty (20/40/40HQ)48/100/11640/80/8836/72/8032/68/7228/56/6422/44/52
STORAGE TANK
capactiy (L)120150180200240300
outer material (mm)painted steel 0.4mm● stainless steel 0.4mm○ galvanized 0.4mm○
inner material (mm)stainless steel 304 0.5mm● stainless steel 316 0.5mm○
insulationPUF
electric heater
nipple size1/2"● 3/4"○
feeder tank
welding
reflector
controller
tank packing size (mm)1320*560*5601570*560*5601810*560*5601980*560*5602310*560*5602830*560*560
VACUUM TUBE
size58/1800mm
tube qty121518202430
tube packing size (mm)1880*330*250
FRAME
materialgalvanized● stainless steel○ aluminum○
inclined roofgalvanized ○
angle45°● 30°○

TZ47/1500-15TZ47/1500-18TZ47/1500-20TZ47/1500-24TZ47/1500-30TZ47/1500-36
GENERAL PARA.
absorbing area (m2)1.4231.7181.9092.2932.8683.444
operating pressure (bar)0
ambient temperature0-60 ℃
daily efficiency>=55%
empty weight (kg)5866748293109
loading qty (20/40/40HQ)52/114/12844/88/10038/76/9634/68/7830/60/6825/50/60
STORAGE TANK
capactiy (L)130150165200245300
outer material (mm)painted steel 0.4mm● stainless steel 0.4mm○ galvanized 0.4mm○
inner material (mm)stainless steel 304 0.5mm● stainless steel 316 0.5mm○
insulationPUF
electric heater
nipple size1/2"● 3/4"○
feeder tank
welding
reflector
controller
tank packing size (mm)1370*560*5601570*560*5601700*560*5601970*560*5602380*560*5602830*560*560
VACUUM TUBE
size47/1500mm
tube qty151820243036
tube packing size (mm)1580*330*210
FRAME
materialgalvanized● stainless steel○ aluminum○
inclined roof-
angle45°● 30°○

SFB Split Pressurized Heat Pipe Solar Collector

 


TZ58/1800-10R1TZ58/1800-15R1TZ58/1800-20R1TZ58/1800-25R1TZ58/1800-30R1
GENERAL PARA.
gross area (m2) 1.17152.5633.3774.1214.901
aperture area (m2)0.9361.3951.862.3262.791
max. operating pressure (bar)10
operating pressure (bar)6
FrUL coefficient1.529
(W/m²)/°C
temperature coefficient for FrUL0.0166
average energy efficiency (%)73.4
ambient temperature-40-60 ℃
volume of the fluid (L)0.71.0651.41.852.3
empty weight (kg)39.654.87391.5106
loading qty (20/40/40HQ)190/380/470130/260/30092/184/23578/156/18862/124/155
MANIFOLD
outer material aluminum alloy
insulationPUF & Rock Wood
thickness of copper pipe (mm)1
nipple size1"● 3/4" ○
diameter of condenser (mm)24
packing size (mm)1020*150*3001440*150*3001850*150*3002260*150*3002680*150*300
VACUUM TUBE
size (mm)58/1800
tube qty1015202530
tube+heat pipe packing size (mm)1920*330*250
FRAME
materialaluminum alloy● stainless steel 304○
adjustable
angle45°● 30°○

 

SFD Series Pre-heated Solar Water Heater


TZ58/1800-20ETZ58/1800-24ETZ58/1800-30ETZ58/1800-36E
GENERAL PARA.
absorbing area (m2)2.7553.3104.1424.963
working pressure (bar)4
ambient temperature-10-60 ℃
daily efficiency>=55%
empty weight (kg)7887108130
loading qty (20/40/40HQ)35/70/7630/60/7024/48/5216/32/36
STORAGE TANK
capactiy (L)200240300360
outer material (mm)painted steel 0.4mm● stainless steel 0.4mm○ galvanized 0.4mm○
inner material (mm)tainless steel 304 0.6mm
insulationPUF
copper coil (mm)Ø12*0.8 thickness
coil length (mm)3100340039004400
electric heater
nipple size1/2"●
feeder tank
welding
reflector
controller
tank packing size (mm)2010*560*5602340*560*5602840*560*5603190*560*560
VACUUM TUBE
size58/1800mm
tube qty20243036
tube packing size (mm)1880*330*250
FRAME
materialgalvanized● stainless steel○ aluminum○
inclined roofgalvanized○
angle45°● 30°○

SFE

SFH Series High Pressurized Solar Water Heater


TZ58/1800-15CTZ58/1800-20CTZ58/1800-25CTZ58/1800-30C
GENERAL PARA.
absorbing area (m2)2.0822.7883.5584.142
working pressure (bar)4
ambient temperature-30-60 ℃
daily efficiency>=55%
empty weight (kg)657896120
loading qty (20/40/40HQ)45/90/10240/80/8832/64/7226/52/60
STORAGE TANK
capactiy (L)150200250300
outer material (mm)painted steel 0.4mm● stainless steel 0.4mm○ galvanized 0.4mm○
inner material (mm)stainless steel 316 1.2mm 
insulationPUF
electric heater
T/P valveT=90℃, P=4bar
relief valve4 bar
nipple size1/2"
feeder tank-
welding
reflector
controller
tank packing size (mm)1630*560*5602050*560*5602480*560*5602900*560*560
VACUUM TUBE
size58/1800mm
tube qty15202530
tube packing size (mm)1880*330*250
FRAME
materialgalvanized ● stainless steel ○ aluminum ○
inclined roof-
angle45°● 30°○
Hope after the comparison and introduction of each model, it could make you a better understanding of solar water heating system. At this moment, may be a type of solar water heater would be in your mind to choose. But before you purchase and install a solar water heating system, I think you want to do the following:
The economic consideration of solar water heating system
Evaluate your site's solar insolation
Determine the correct size for system
Determine the energy efficiency of system
Estimate and compare system costs
PS: Of course, it you still unclear about above information, Sunflower Solar Server would be very glad to be on service of you.
 
SFAManual Linkage Comparison
SFB
SFD
SFE
SFH


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