Other posts have discussed light commercial systems for restaurants and other similar businesses. But what if you need a solar thermal system with a bit more uumph? Here’s the recipe for a solar hot water system that would be perfect for, say, apartment buildings or hotels. It provides 330 gallons of hot water per hour, […]
Read morePressurized glycol
I’m asked, more and more, to provide a solar hot water system design for light commercial systems. There is, indeed, an effective and simple design template for smaller commercial systems that need to heat up to 330 gallons of water per hour or less. The actual system this template is based on is for a […]
Read morePressure or drainback? That’s probably the question I get asked more than any other: Should I choose the more popular pressure-glycol system, or go with a drainback system? Here’s the answer: It depends. Don’t you hate that kind of answer? Well, here’s a more specific answer: If the slope of the collectors and plumbing is […]
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