Products Description
Compact non pressure solar water heater relies on the nature circulation of the water between solar tubes and the water tank. Thermosyphon systems work on principal of heat rising. The water enters in the bottom of the collector and rises to the tank as it warms. The advantage of this system is that solar heat is stored in a well-insulated tank, so hot water can be used at any time without the penalty of overnight losses.
Moreover the insulation of the tank can protect heat during 3 days without heat loss.
Frequently Asked Questions
1. How does a compact non-pressure solar water heater work?
It operates on the principle of thermosyphon circulation. Water in the solar vacuum tubes heats up from solar radiation, becomes lighter, and naturally rises into the water storage tank. Meanwhile, colder water from the tank flows down into the tubes to repeat the process.
2. How long can the insulated tank keep the water hot?
The tank features a high-density, 50-55mm thick polyurethane insulation layer. This allows the system to preserve hot water for up to 72 hours (3 days) without significant heat loss, even overnight or during cooler periods.
3. What happens on cloudy or rainy days when there is no sun?
An optional electric backup heater can be installed. In the event of prolonged rainy or cloudy weather, the automatic temperature controller will activate the electric heater to ensure you always have access to hot water.
4. Can this system handle pressurized household water grids?
This is a non-pressure solar water heater system designed to operate under gravity flow, and it withstands water pressure of no more than 0.1MPa (normally operating around 0.05Mpa). If high-pressure water output is needed, pressure-reducing valves or alternative pressure systems should be considered.
5. What durable materials are used in its construction?
The inner water tank is manufactured from food-grade SUS304-2B or SUS316L stainless steel (0.31mm-0.5mm thickness) to prevent rust and contamination. The outer structure employs a colorful steel shell, and the structural frame is built from 1.5mm thick galvanized steel.
6. Is the system difficult to install and maintain?
No, it is highly valued for its simple design and reliability. Because it does not rely on complex pump systems or electrical controllers for standard heating, installation is straightforward, and long-term maintenance requirements are minimal.