Solar Hot Water Heating
What is it?
Solar hot water uses energy from the sun to heat water, and then uses electricity to pump that water. Solar hot water can be used not only to heat domestic hot water, it can also be used to heat a radiant floor system extremely efficiently.

How does it work?
There are two types of solar hot water systems; open, and closed.
An open system brings municipal or well water straight into the solar hot water panels. As the water passes through the panels it is heated up, and then used immediately or stored in a hot water tank.
Closed systems use a non-freezing fluid to transfer heat from the panels to the hot water tank. Closed systems are less efficient than open systems because they don't heat the water you use directly; they only transfer that heat.
Closed systems are designed for areas that have hard water, or areas that freeze, while open systems are better suited for mild climates.
What are the benefits?
Using solar hot water panels can drastically reduce energy demand on a building, lowering both operating and environmental costs. Solar hot water can also increase security in high-threat environments. (Learn how) In low-income post-disaster areas, solar hot water heaters can help residents lower their utility bills, allowing them to focus spending on necessities.
Why does Exup use it?
Solar hot water heaters are a natural choice for Exup environments. Sunny days can be found almost everywhere on the planet, and available warm water can mean the difference between healthy, comfortable conditions and a bloody miserable time. Using natural resources like the sun helps both the economic and environmental bottom line, an important goal for Exup structures.
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