To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Need to contact us? Visit

HTP/ Solar Skies Stainless Double Wall HX Storage Tanks

matt_sunwaysolarmatt_sunwaysolar Member Posts: 61
Does anyone have any experience using the Heat Transfer Products (HTP) or Solar Skies (private labeled HTP) Stainless DOUBLE WALL HX Storage Tanks? In particular, model #'s SSU80DW and SSU119DW.

I'm in Chicago where we are required to use double wall HX's in almost all municipalities. Typically, we use the Rheem/ Richmond models with wraparound external heat exchangers (double wall). The head loss through the HX coil is massive, but the price is good and the heat exchange decent.

Obviously, the good things about the stainless are the warranty and longevity. The head loss (pressure drop) is excellent, but I am mainly concerned about the ability of the smaller, double-wall hx coil to transfer enough heat.

Looking to use these with flat plate collectors (AET/ Solar Skies). Typically 64, 76 or 80 sq. ft. of collector to 80 gallons of storage. In Drainback and Pressurized systems.

Please, anyone with experience. I would greatly appreciate input.
This discussion has been closed.


It looks like you're new here. If you want to get involved, click one of these buttons!