With rising energy costs and increasing environmental awareness, more and more families are paying attention to solar water heaters. As experts at DELAN Technology, we provide you with the following professional advice to help you choose an efficient solar water heating system that best suits your family's needs.
1. Evaluate your family's hot water needs
Family size: 100-150L capacity for 1-2 people, 200-300L for 3-4 people, and 300L or more or a dual tank system for more than 5 people.
Water use habits: Shower, bathtub or floor heating needs are different, DELAN provides customized solutions to ensure sufficient hot water.
2. Choose the right collector type
Evacuated tube collector: suitable for cold areas, still working efficiently at -30℃, DELAN uses triple coating technology, with a heat absorption efficiency of 95%.
Flat plate collector: suitable for rainy areas in the south, hail-resistant, easy to maintain, DELAN's patented antifreeze design can withstand extreme weather.
3. Focus on energy efficiency and durability
DELAN solar water heaters have passed ISO 9806 international certification, with an average thermal efficiency of ≥75%, which is 30% more energy-efficient than ordinary products.
The water tank uses 304 stainless steel + polyurethane insulation layer, with a 24-hour temperature drop of ≤3°C and a lifespan of up to 15 years.
4. Intelligent control and safety
DELAN is equipped with a Wi-Fi intelligent control system, which can remotely adjust the water temperature, check energy consumption, and automatically protect against water leakage and electricity leakage.
The triple safety design of anti-freeze, anti-dry burning, and anti-overheating is suitable for unattended families.
5. Installation and after-sales guarantee
DELAN provides free on-site surveys and optimizes installation plans based on roof angles and sunlight conditions.
10-year warranty, 200+ service outlets nationwide, and 24-hour response.
Why choose DELAN Technology?
✅ 18 years of industry experience, exported to 50+ countries worldwide
✅ German TÜV certification, quality guaranteed
✅ One-stop service: design, installation, and maintenance all-inclusive

Consult DELAN experts now
Choose DELAN solar water heaters and let the sun save you money and worry!










