Phone:1-888-866-8970                         Email: info@americansolartechnics.com

Inexpensive Compared to Other Systems
Very High Insulation Value
Completely Modular Construction
Everything is Durable and Serviceable
Put Our 30+ Years of Experience to Work for You!

Heat Exchanger Information

Our heat exchangers have been carefully developed over the past 30 years.

When we started building tanks, the common wisdom was to use ¾" Type L copper tubing as a heat exchanger for domestic hot water or other heat input or output needs.

The reality was that in most cases, ¾" copper tubing does not work as well as other sizes and configurations.  We discovered this through lengthy research and development with technical support from the University of Maine's Mechanical Engineering Department.  Using the results of our research, we were able to develop more compact heat exchangers that cost less money and actually perform better than filling the tank with less efficient masses of ¾" copper tubing or finned stainless steel or copper.

We recently performed more testing on our Domestic Hot Water heat exchanger that includes an antiscald valve.

We had tested it thoroughly ourselves and also had a local electric utility test it's performance in the late 1980's.  It seemed appropriate to update our data.

We heated a 180 gallon Heat Bank heat storage tank to 180˚ F.  Then, we set the antiscald valve to deliver a steady 110˚ F stream of hot water at 3.25 gallons per minute.  The system delivered 224 gallons of hot water at 110˚ F.  When the test was over, the tank temperature was within a few degrees of 110˚ F, which was our cutoff temperature for the test - the limit of usable domestic hot water.  Our findings show that all of the usable heat was delivered to the faucet with the highest efficiency.

We have tested our space heat exchangers and have found similar results.

We have always and will continue to develop the most cost effective way to store heat in unpressurized storage tanks and offer them to you at competitive prices.

©2012 American Solartechnics, LLC.

Home

About Us

Products

     1100 Gallon Heat Bank

     820 Gallon Heat Bank

     550 Gallon Heat Bank

     200 Gallon Heat Bank

     110 Gallon Heat Bank

     Solar DHW Tank Packages

     Rectangular Heat Banks

     The New Softank

     Domestic Hot Water Heat Exchangers

     Space Heat Exchangers

     Solar Heat Exchangers

     The Geyser Heat Pump

     Clearance

     Custom Liners

American Solartechnics Blog

Articles on Alternative Energy

Heat Exchanger Information

Why We Don't Use EPDM

Pressurized vs. Unpressurized

Photo Gallery

Warranty Information

Ordering Information

Contact Us!
1-888-866-8970
info@americansolartechnics.com