Buzz
With significant long-term savings in mind, various types of solar water heaters are gaining popularity among Vietnamese consumers. However, with the diverse range of solar water heaters available, which one is the best choice?
1. Vacuum tube solar water heaters: Most affordable option
Among the array of solar water heaters in the market, vacuum tube solar water heaters stand out as the most budget-friendly option. A 140-liter vacuum tube solar water heater can be purchased for as low as 6 million dong, making it a popular choice for many households.
– Advantages of vacuum tube solar water heaters
+ Simple design, easy to use
+ Efficient boiling of hot water
+ Durable
– Drawbacks of vacuum tube solar water heaters
+ Prone to internal sediment buildup in the vacuum tubes
+ Requires a water tank placed higher than the solar water heater for easier water flow
Due to the propensity for sediment buildup, users may need to replace the vacuum tube system after several years, especially in areas with hard water, to ensure optimal performance of the solar water heater.
Hence, vacuum tube solar water heaters are an excellent choice for individuals residing in the Southern region - where sunlight is abundant throughout the year.
2. Oil-based solar water heaters: Suitable for many
Similar in structure to vacuum tube solar water heaters, oil-based solar water heaters utilize a medium to indirectly heat water instead of directly heating it like vacuum tube solar water heaters.
With such a structure, oil-based solar water heaters have their own advantages and disadvantages compared to vacuum tube solar water heaters:
– Advantages of oil-based solar water heaters
+ Heats water more efficiently compared to vacuum tube solar water heaters
+ No issues with sediment buildup or algae growth, ensuring better durability
– Drawbacks of oil-based solar water heaters
+ Requires a water container placed higher similar to vacuum tube solar water heaters
Slightly pricier, however, oil-based solar water heaters offer better water heating capabilities and enhanced durability. Therefore, individuals residing in the Northern region of our country should consider this type.
3. Flat plate solar water heaters: The best and most expensive
Unlike tubular solar water heaters, flat-panel solar water heaters utilize thermal glass panels to heat the water system placed below. With its special design, flat-panel solar water heaters can overcome most drawbacks of tubular solar water heaters.
Not only does flat-panel solar water heaters perform better in heating water even on cloudy days, but they also avoid issues like water scaling or algae growth.
However, compared to tubular solar water heaters, the price of flat-panel solar water heaters is relatively high, with a 140-liter unit costing over 30 million dong. Additionally, these units require electricity to operate since they use a separate pressure pump system. Although they consume minimal electricity, they won't function without power.
With long-lasting durability and outstanding advantages, flat-panel solar water heaters are increasingly favored by many users.
Here are the three types of solar water heaters available on the current market. Depending on your highest priority when purchasing a solar water heater, consider selecting the most suitable type. Also, don't forget to use Mytour to find the cheapest solar water heater available in the market.
