Figure 1: How it works
GFX is an award-winning plumbing product
developed under a U.S. Department of Energy Grant; engineered to feed
back enormous amounts of energy carried down the drain -- energy
equivalent to "2 billion gallons of oil" annually wasted in
the U,S. alone according to their evaluation. Adding multi-housing,
commercial, industrial, state and federal usage increases potential
savings to over 7 billion equivalent gallons of oil per year. In fact,
about a trillion kWh (= 3413 trillion Btu) go down America’s drains
each year. One Btu is required to raise the temperature of a pound of
water by one degree-F and there are 8.34 pounds in every gallon.
Each unit of electrical energy
delivered to millions of electric water heaters
requires about 3.2 times as much fuel-energy be consumed at
electric power plants. Millions of archaic gas and oil water heating
systems are also very inefficient, as discussed in an
A.D. Little Report
for DOE & EEI.
Consequently, far more than 3413 trillion Btu/yr go up smoke stacks used to produce heat
or electricity for the billions of gallons of hot water Americans send
down their drains. Whether gas, electricity or oil is used for water
heating, every unit of energy recycled by GFX must be multiplied by
some large factor when estimating fuel-energy savings or corresponding
reductions in pollution. Since the EPA doesn’t offer Energy Star labels
for either DHR or water heating systems, it’s up to consumers to cut
waste and pollution from their water heaters.
Perhaps the most important and immediate benefit to owners of
all-electric homes is GFX's power-boost; enough to triple the
shower-capacity of tank-type water heaters and halve the cost of a
For example, if GFX boosts cold water temperatures by 30 degrees,
it's feeding back about 10 kW of power; more than enough to triple your
family's showering-time and save 2 kW of energy per 12-minute shower.
Habitat For Humanity Video
Figure 2: GFX savings in 3 Climate Zones
means if you pay 8.5 cents to 17 cents per kWh for electricity and your
yellow water heater sticker shows an efficiency rating (energy factor) of
85%, GFX could save you 20 cents to 40 cents per shower, depending upon
where you live and type of showerhead installed.
Other ramifications of GFX are discussed by Editor J.D. Nisson in "Extraordinary Water Heat Recovery
Device" [December, 1996 "Energy Design Update"
Newsletter]; including how GFX "gives an electric water heater the
capacity of a gas heater". In fact, when tested with GFX, the first
hour rating of two types of high efficiency 50-gallon electric water
heaters tripled to 180 gallons; more than "double the capacity of
typical 50-gallon gas heaters" -- with an energy factor rivaling
that of a heat-pump, plus unsurpassed reliability and quietness.
According to U.S. EPA standards, if just 6 million electric water
heating systems were to be upgraded by GFX, carbon dioxide emissions
would drop by more that 20 million tons per
year; the amount released by burning 1.8 billion gallons of oil.
All-copper, NSF/ANSI Std.-61 construction means GFX: (a) will not
poison your loved ones they way some uncertified Canaidan
knockoffs continue to do, (b) will last as long as your
plumbing system and (c) will pay for itself many times over. Safety is
guaranteed by U.L.-approved, NSF/ANSI Std.-61, double- wall-vented
construction and self-cleaning ensures maintenance-free operation at peak
efficiency. The falling-film heat exchanger models listed in Tables A & B offer ultra-high heat transfer coefficients
required for compact size and high capacity.
[Patents Pending, Original U.S. Patent