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Efficient Hot Water (EHW)

Government Energy Management (GEM) will
help agencies meet federal energy mandates
with the best value use of appropriated
funds or through third party financing when
appropriations are not available.
The mandated energy goals of the Executive
Orders and Energy Acts are largely
unfunded; GEM has the funds and resources
available to agencies in order for them to
meet their GHG reduction goals and energy
conservation goals.

We provide 98% thermal efficiency and a 94% energy

Our best in-class warranty will also lower maintenance costs
and provide the confidence for continuous service.

You can purchase the product and installation
outright or you can pay for it through the GEM
Energy Saving Payment Agreement. Here’s how it

UNICOR manufactures the GEM Efficient Hot Water
System so you have a Buy American compliant product.

Our FAR compliant buying mechanism allows our
customers to buy directly from UNICOR as you do now for
products and services under FAR 8.6 or, if you prefer to use
Interagency Agreements, authority is under FAR 17.5.

We offer state-of-the-art technology that will:

We have an agreement with UNICOR to provide product,
assessments, surveys, installation, and payment plan.

Help you meet the mandates.

Provide procurement support for agencies as GEM is in an
alliance with Federal Prison Industries.

You can be on your way to meeting and exceeding the
Federal mandates for cost savings and energy reduction.

Be available even if appropriations are not available, GEM’s
products and services are available through third party


We help you meet the energy reduction mandate:

We replace your current hot water system with our GEM
EHW to reduce water and energy consumption. You will see
30-50% in energy reduction and up to 23% in water savings.

For more information:

Phone: 843-419-6738

Government Energy Management
10162 S. Bellwright Road
Summerville, SC 29483

Energy Protection
Hot WaterDevice

Typical unit:

MEET Executive Order 13423 in half the
required time by installing GEM EHW

The GEM Efficient Hot
Water system will be:
GEM EHW system is 98% efficient compared to 50% efficiency
with tank style water heaters and standard cast iron boilers

Reduce water usage with instantaneous hot water


Fully condensing, high efficiency (up to 98% AFUE)
Commercial grade expandable 316L stainless heat
exchanger with proven durability
Best 6 year Commercial HX Warranty
ASME versions available
Continuous hot water - never run out
Always at set point - never drop in temperature
No 24/7 energy waste with tank standby losses
Best ROI - lower capital costs combined with lower
operating costs
Operates on very low gas pressure down to 2.5”
Active descaling for less maintenance
Takes up 90% less space than a typical tank
Thermal Efficiency - 98%
Energy Factor - 94%

For more information:

Single units can replace traditional tank style
water heaters or be integrated into a modular
array for large heating plants and millions of BTU.

Cut capital expenditure (up to 44%)
Lower operating cost (30 - 50%)
Recover space (50%)

There is zero wasted energy because the system ramps
up and down as demand changes (modulation).

Phone: 843-419-6738

Government Energy Management
10162 S. Bellwright Road
Summerville, SC 29483

Efficient Hot Water (EHW)


Efficient Hot Water System Facts
What is an Intelligent Hybrid?
Tapping the power of American design and ingenuity, the GEM
EHW heaters combine the best attributes of tank and tankless
with sophisticated logic and integrated circulation. The result
is not just a better water heater, but an efficient and intelligent

potential leak paths for improved reliability. This HX has
superior corrosion and erosion resistance properties, and its 3⁄4”
ID offers the lowest pressure drop of any when compared with
other primary/secondary heat exchanger tankless designs.

water heating and delivery system.

Built-in Tank Loading Mode
What do you need for your business?
Dependability, reliability, and great performance at a
competitive price? A tight space and need to reduce operating
costs, but can never risk being out of hot water? GEM delivers
these in an efficient, compact, and powerful engine: and GEM

In many commercial applications, a small amount of storage is
often necessary to deal with quick and short cycles. The GEM “P”
models set up a tank loading circuit without adding a pump or
aquastat. Get the best of both worlds: the efficiency of a tankless
combined with the capacity of a tank while incurring much lower

backs it up with the best commercial warranty in the business.

capital and operating costs.

Stainless, Cycle-Proof Heat Exchanger

Masterless Cascading

Constructed out of commercial grade 316L stainless steel, GEM
uses a unique helical and fully expandable heat exchanger (HX)
designed to accommodate the quick temperature changes and
continual on/off cycles typical of commercial applications. This
evolutionary design minimizes the HX stress, guaranteeing
longer heater life. The single coil eliminates the need for a
primary-to-secondary HX connection, thus eliminating six

GEM utilizes unique, integrated controls that allow for
masterless cascading that eliminates risks for a single point
system failure. Installations with multiple units will be
intelligently controlled such that no single unit is operated the
majority of the time. GEM eliminates the risk so your facility will
never be out of hot water again.

All products and materials are sold at or below our best commercial pricing

For more information:

Phone: 843-419-6738

Government Energy Management
10162 S. Bellwright Road
Summerville, SC 29483

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