Row of hot water panels on a roof.

As you get ready to design a solar thermal system for your home, there’s one factor you may not be considering that could make a bucket load of difference: What’s the beginning temperature of the water you’ll be heating?In the United States’ northern climes, it’s likely 50°. In warmer, more southern climates, you’re likely beginning […]

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Drainback with tankless is less costly, more efficient

Today, as part of our ongoing series of basic solar designs, we look at a drainback system using an efficient solar storage tank and a tankless water heater as backup. This design is fairly uncomplicated and is, perhaps, the least costly system for residential applications. For all its simplicity, it delivers freeze and overheat protection […]

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