| Quantity: | |
|---|---|
RNE-NS-20
SOLARAVEN
841912
"All stainless steel" solar water heaters are widely available in Mexico, with most models using SUS304-2B grade stainless steel for general use, and some specialized suppliers offering SUS316L marine-grade steel for coastal regions
SOLARAVEN offers low-cost solar water heaters primarily through their low-pressure series, which are designed to be an economical and efficient solution for solar water heating, particularly suited for gravity-solar hot water systems. The low cost is achieved through a simpler design and thinner tank materials compared to high-pressure models.
Low-Pressure solar geysers
These models are the most budget-friendly option from SOLARAVEN and are designed for cost-effective water heating, often used in conjunction with a separate storage tank ("tinaco") or an auxiliary tank to regulate pressure.
100L Model:
Reviewers on ravennewenergy.com website note this is a very cost-effective and simple-to-install option.
Features include a 0.35mm thick SUS304 stainless steel inner tank and 10 x 58x1800mm vacuum tubes.
150L Model:
Described as a popular, low-maintenance, and highly reliable option for gravity-fed systems.
Features a 0.35mm thick SUS304 stainless steel inner tank and 15 x 58x1800mm vacuum tubes.
200L Model:
Ideal for larger families or households needing more hot water storage, offering a balance of capacity and cost-effectiveness. Features a 0.35mm thick SUS304 stainless steel inner tank and 20 x 58x1800mm vacuum tubes.
Key Features Contributing to Low Cost
Design: The solar water heater systems use a non-pressurized design, which is simpler and has no moving parts (like circulation pumps in active systems), contributing to longer life expectancy and low maintenance.
Materials: The inner tank material is 0.35mm thick SUS304 stainless steel, thinner than the 1.2mm used in their high-pressure models, which is a major factor in the lower price point.
Installation: The simple, non-pressurized nature of the system means less complex installation requirements, potentially reducing labor costs
FAQ
Q: Why is it so much cheaper than a high pressure solar geyser?
A: These are low-pressure solar systems. They use thinner inner tanks (typically 0.35mm–0.4mm SUS304 stainless steel) because they don't have to withstand the high pressure of a municipal water line. They rely on gravity to move water.
Q: Will I have good water pressure in my shower?
A: Not naturally. Because it is gravity-fed, the pressure depends on how high the solar geyser is mounted above your shower head. If it's on a low roof, the pressure will be weak. Many users add a small 12V or 220V low-pressure pump to boost the hot water flow.
Q: Does it work during the night or on rainy days?
A: The insulated tank keeps water hot overnight. For rainy days, these units usually come with an electrical backup element (1.5kW to 2kW) and a controller (like the SR609) to heat the water manually or via a timer.
Q: What is the "Assistant Tank" or "Header Tank" for?
A: It sits on top of the main solar geyser. It acts like a toilet cistern—it fills with high-pressure water, and then feeds it into the solar tank at low pressure using a float valve.
Q: Can I install it myself?
A: While solar kits are "DIY-friendly," you still need basic plumbing knowledge. You can find manuals and kits on the The SOLARAVEN Website.
Q: Will the stainless steel tank rust?
A: SOLARAVEN uses SUS304-2B or SUS316L stainless steel. It is rust-resistant for inland use. However, if you live within 5km of the ocean (like in coastal Mexico or Polynesia), this "low-cost" 304 steel may corrode over time. For those areas, SUS316L is better.
Q: What maintenance is required?
A: You should replace the magnesium anode rod every 12–18 months. This rod "sacrifices" itself to prevent minerals in the water from eating the stainless steel tank.
Q: What happens if a vacuum tube breaks?
A: You can simply buy a replacement tube (usually 58mm x 1800mm). In low-pressure solar heater systems, if a tube breaks, the water will leak out, so you must replace it immediately to keep the system running.
Specification for low pressure solar water heaters
Model | Vacuum Tube | Capacity | Absorber Area | Suitable for | |
Pcs | Size(mm) | (L) | (㎡) | (Persons) | |
RNE-NS-10 | 10 | 58×1800 | 100 | 1.330 | 2 |
RNE-NS-15 | 15 | 58×1800 | 150 | 1.995 | 3 |
RNE-NS-20 | 20 | 58×1800 | 200 | 2.660 | 4 |
RNE-NS-25 | 25 | 58×1800 | 250 | 3.325 | 5 |
RNE-NS-30 | 30 | 58×1800 | 300 | 3.990 | 6 |
Gravity Solar Geyser with vacuum tubes | |||
Solar Water Tank | 1 | Material of Outer Tank Shell | stainless steel 304 2B or 316L |
2 | Material of Inner Tank Chest | stainless steel 304 2B or 316L | |
3 | Water Tank Diameter | 【460/360MM】 | |
4 | Water Tank Insulating Layer | Imported Polyurethane,High Density,【50MM】 | |
5 | Heat Preservation Period | 72～80Hours | |
6 | Welding Method | Argon Arc Welding | |
Solar Vacuum Tube | 7 | Solar vacuum tube structure | All-Glass Double Co-Axial Structure |
8 | Glass Material | High Borosilicate 3.3 Glass | |
9 | Tube Size | 【diameter 58MM* length 1800MM】 | |
10 | Outer Tube Dia.&Glass Thickness | φ58±0.7mm,Glass Thickness 1.6±0.15mm | |
11 | Inner Tube Dia.&Glass Thickness | φ47±0.7mm,Glass Thickness 1.6±0.15mm | |
12 | Coating Material | 【CU/SS-ALN(H)/SS-ALN(L)/ALN】 | |
13 | Sediment Method | Tri-Element Magnetron Sputtering Plating | |
14 | Absorb Ratio | >96%(AM1.5) | |
15 | Thermal Emissivity | ≤6%/(80℃) | |
16 | Hail Resistance | φ25mm | |
Solar water heater Bracket | 17 | Bracket Material | 【Stronger Galvanized Steel】 |
18 | Bracket Angle | 【25°】 | |
19 | Bolts&Muts | Stainless Steel | |
Assistant Tank | 20 | Assistant Tank Material | Stainless steel |
21 | Assistant Tank Capacity | 【5L/8L/20L】 | |
22 | Assistant Tank Model | Vertical/Horizontal,Optional | |
"All stainless steel" solar water heaters are widely available in Mexico, with most models using SUS304-2B grade stainless steel for general use, and some specialized suppliers offering SUS316L marine-grade steel for coastal regions
SOLARAVEN offers low-cost solar water heaters primarily through their low-pressure series, which are designed to be an economical and efficient solution for solar water heating, particularly suited for gravity-solar hot water systems. The low cost is achieved through a simpler design and thinner tank materials compared to high-pressure models.
Low-Pressure solar geysers
These models are the most budget-friendly option from SOLARAVEN and are designed for cost-effective water heating, often used in conjunction with a separate storage tank ("tinaco") or an auxiliary tank to regulate pressure.
100L Model:
Reviewers on ravennewenergy.com website note this is a very cost-effective and simple-to-install option.
Features include a 0.35mm thick SUS304 stainless steel inner tank and 10 x 58x1800mm vacuum tubes.
150L Model:
Described as a popular, low-maintenance, and highly reliable option for gravity-fed systems.
Features a 0.35mm thick SUS304 stainless steel inner tank and 15 x 58x1800mm vacuum tubes.
200L Model:
Ideal for larger families or households needing more hot water storage, offering a balance of capacity and cost-effectiveness. Features a 0.35mm thick SUS304 stainless steel inner tank and 20 x 58x1800mm vacuum tubes.
Key Features Contributing to Low Cost
Design: The solar water heater systems use a non-pressurized design, which is simpler and has no moving parts (like circulation pumps in active systems), contributing to longer life expectancy and low maintenance.
Materials: The inner tank material is 0.35mm thick SUS304 stainless steel, thinner than the 1.2mm used in their high-pressure models, which is a major factor in the lower price point.
Installation: The simple, non-pressurized nature of the system means less complex installation requirements, potentially reducing labor costs
FAQ
Q: Why is it so much cheaper than a high pressure solar geyser?
A: These are low-pressure solar systems. They use thinner inner tanks (typically 0.35mm–0.4mm SUS304 stainless steel) because they don't have to withstand the high pressure of a municipal water line. They rely on gravity to move water.
Q: Will I have good water pressure in my shower?
A: Not naturally. Because it is gravity-fed, the pressure depends on how high the solar geyser is mounted above your shower head. If it's on a low roof, the pressure will be weak. Many users add a small 12V or 220V low-pressure pump to boost the hot water flow.
Q: Does it work during the night or on rainy days?
A: The insulated tank keeps water hot overnight. For rainy days, these units usually come with an electrical backup element (1.5kW to 2kW) and a controller (like the SR609) to heat the water manually or via a timer.
Q: What is the "Assistant Tank" or "Header Tank" for?
A: It sits on top of the main solar geyser. It acts like a toilet cistern—it fills with high-pressure water, and then feeds it into the solar tank at low pressure using a float valve.
Q: Can I install it myself?
A: While solar kits are "DIY-friendly," you still need basic plumbing knowledge. You can find manuals and kits on the The SOLARAVEN Website.
Q: Will the stainless steel tank rust?
A: SOLARAVEN uses SUS304-2B or SUS316L stainless steel. It is rust-resistant for inland use. However, if you live within 5km of the ocean (like in coastal Mexico or Polynesia), this "low-cost" 304 steel may corrode over time. For those areas, SUS316L is better.
Q: What maintenance is required?
A: You should replace the magnesium anode rod every 12–18 months. This rod "sacrifices" itself to prevent minerals in the water from eating the stainless steel tank.
Q: What happens if a vacuum tube breaks?
A: You can simply buy a replacement tube (usually 58mm x 1800mm). In low-pressure solar heater systems, if a tube breaks, the water will leak out, so you must replace it immediately to keep the system running.
Specification for low pressure solar water heaters
Model | Vacuum Tube | Capacity | Absorber Area | Suitable for | |
Pcs | Size(mm) | (L) | (㎡) | (Persons) | |
RNE-NS-10 | 10 | 58×1800 | 100 | 1.330 | 2 |
RNE-NS-15 | 15 | 58×1800 | 150 | 1.995 | 3 |
RNE-NS-20 | 20 | 58×1800 | 200 | 2.660 | 4 |
RNE-NS-25 | 25 | 58×1800 | 250 | 3.325 | 5 |
RNE-NS-30 | 30 | 58×1800 | 300 | 3.990 | 6 |
Gravity Solar Geyser with vacuum tubes | |||
Solar Water Tank | 1 | Material of Outer Tank Shell | stainless steel 304 2B or 316L |
2 | Material of Inner Tank Chest | stainless steel 304 2B or 316L | |
3 | Water Tank Diameter | 【460/360MM】 | |
4 | Water Tank Insulating Layer | Imported Polyurethane,High Density,【50MM】 | |
5 | Heat Preservation Period | 72～80Hours | |
6 | Welding Method | Argon Arc Welding | |
Solar Vacuum Tube | 7 | Solar vacuum tube structure | All-Glass Double Co-Axial Structure |
8 | Glass Material | High Borosilicate 3.3 Glass | |
9 | Tube Size | 【diameter 58MM* length 1800MM】 | |
10 | Outer Tube Dia.&Glass Thickness | φ58±0.7mm,Glass Thickness 1.6±0.15mm | |
11 | Inner Tube Dia.&Glass Thickness | φ47±0.7mm,Glass Thickness 1.6±0.15mm | |
12 | Coating Material | 【CU/SS-ALN(H)/SS-ALN(L)/ALN】 | |
13 | Sediment Method | Tri-Element Magnetron Sputtering Plating | |
14 | Absorb Ratio | >96%(AM1.5) | |
15 | Thermal Emissivity | ≤6%/(80℃) | |
16 | Hail Resistance | φ25mm | |
Solar water heater Bracket | 17 | Bracket Material | 【Stronger Galvanized Steel】 |
18 | Bracket Angle | 【25°】 | |
19 | Bolts&Muts | Stainless Steel | |
Assistant Tank | 20 | Assistant Tank Material | Stainless steel |
21 | Assistant Tank Capacity | 【5L/8L/20L】 | |
22 | Assistant Tank Model | Vertical/Horizontal,Optional | |
