for prices of Lo-Copper versions of discontinued, Hi-Copper GFX models & subsystems:

Fig. 2: Model S3-58-LC (Watercycles Model DH3058) is equivalent to a pair of 30” G3-30-LC’s having their drainpipes connected in series, ½” Type-L coils plumbed in parallel with ¾” in/out connectors.

Habitat House

Yonkers, NY

     LEED certified buildings command a hefty premium compared to ENERGY STAR buildings, according to recent studies by the New Buildings Institute (“NBI”) and the CoStar Group. The latter analyzed more than 1,300 LEED Certified & Energy Star rated buildings, representing 351 million square feet, and found LEED buildings command premiums of $11.24 per square foot, compared to $2.38 for ENERGY STAR rated buildings. "As a result ENERGY STAR buildings are selling for an average of $61 per square foot more than their standard buildings, while LEED certified structures earn a remarkable $171 more per square foot." For obvious reasons, electric & gas utilities and politicians in their pockets promote ENERGY STAR over LEED. To understand why, turn back the clock to 1996 -- to a Conference whereat the audience was informed that DOE usurped the EPA's ENERGY STAR Program by taking over its Appliance segment then quickly denied an ENERGY STAR Label for LEED Certified GFX’s and eliminated them from new construction. To estimate how much DOE degraded ENERGY STAR by failing to grant labels for water heaters, GFX and other big energy savers, see https://gfxtechnology.com/EnStarCom.pdf. (Quote from "Building Green Pays Off" (Green Building Product Dealer, April 2008, V. 4, #3, pg. 8)