Tankless heaters Archives - Solar, radiant, and all that is sunny

31Mar201709Aug2018

Commercial solar: With tankless water heater, you don’t pay to heat it ’til you need it

nkaskrod-admin Commercial, Solar thermal design, Tankless heaters 0 Comment

Here’s a new concept for commercial solar: a 250,000-Btu tankless water heater. It comes down to this simple philosophy: Don’t pay to heat ’til you need it. As you study this concept illustration, you’ll realize how simple this is. And, when you compare this setup to a conventional design, the cost will be half. back-up. […]

02Mar201709Aug2018

Drainback with tankless is less costly, more efficient

nkaskrod-admin Drainback, Residential solar, Solar thermal design, Tankless heaters 0 Comment

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 […]