The solar heat exchanger works by circulating a fluid, such as water or an antifreeze solution, through the panel. As the fluid passes through the panel, it is heated by the sun's energy and is then pumped back into the building to be used as a heat source. Some systems also use a separate storage tank to store the heated fluid for use when the sun is not shining.

One advantage of a solar heat exchanger is that it is a passive system, which means that it does not require any external power to operate. This makes it a reliable and cost-effective way to heat a building, especially in areas where there is an abundance of sunlight. Additionally, solar heat exchangers do not produce any emissions, making them an environmentally friendly choice.

There are a few key factors to consider when choosing a solar heat exchanger for your home or business. The first is the size of the system, which will depend on the size of the building and the amount of heat needed. It is important to choose a system that is appropriately sized to meet the heating needs of the building, as an undersized system will not be able to provide sufficient heat and an oversized system will be unnecessarily expensive.

The orientation and angle of the panels is also important, as it will affect the amount of solar energy that is captured. In general, panels that are oriented towards the south and are at a tilt of about 30 degrees will be most effective at capturing solar energy.

Finally, the type of fluid used in the system will also impact its efficiency. Water is the most common choice, but an antifreeze solution can be used in colder climates to prevent the system from freezing.

Overall, a solar heat exchanger is a reliable and cost-effective way to provide heat and hot water for a home or business. It is an environmentally friendly option that can help to reduce energy costs and reduce the building's carbon footprint.