Page 4 - FQ10571.RexConLLC.WI.-For-ReadyMixConcreteFacility.DC7000 wOption 2000 GalTank

RexCon LLC Proposal No. Q10571
2841 Whiting Road
Burlington, WI 53105 Date: September 13, 2017

Attention: Mr. Adam Komornicki Salesman: GET/kr

E-mail: akomornicki@rexcon.com Tel: 414-801-3285

Subject: Ready Mix Concrete Facility

We are pleased to quote the following, Model DC 7000 (7,000,000 BTU/HR) DIRECT
CONTACT WATER HEATER to be installed by the purchaser. This system is designed on the
basis of the information supplied to us by your plant to handle the following approximate
quantities and temperatures and produce the stated results.
CUSTOMER REQUIREMENTS:

Hot Water (Max)------------------------------------- 6,720 GPH (112 GPM @ 170 Deg. F.)
Hot Water (Ave) ------------------------------------- 5,760 GPH ( 96 GPM @ 170 Deg. F.)
Cold Water ---------------------------------------------------------------------------- 55 Deg. F.
Natural Gas Pressure (1,000 BTU/FT )------------------------- 2 PSIG @ 7,000 FT /HR.
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HEATER CAPACITY:
Direct Contact Water Heater (Patent No. 4574775) is rated at 7,000,000 BTU/HR and is capable of heating
120 GPM from 55 to 170 Deg. F. at sea level to 1,000 foot elevation. Water can be heated up to a
maximum of 180 Deg. F., at a reduced water flow rate.

ESTIMATED ANNUAL VALUE OF HEAT LOAD REDUCTION:
Based upon heating 5,760 GPH of water from 55 to 170 Deg. F., 30 hours per week for 20 weeks per year,
and natural gas at a cost of $6.50 per 1,000 CU FT., the annual cost reduction would be $9,000.00 per year
when compared to a conventional gas-fired heater or boiler system operating at 70% system efficiency.

INSTALLATION OPTION: (Available Upon Request)
In addition to the following standard equipment, OPTIONAL Pump, Valve, and Piping Packages are
available to substantially reduce set-up time and installation.

LUDELL EXTENDED WARRANTEE:
Ludell warrants its water heaters against defects in material and workmanship, under normal use and
service for a period of five (5) years after shipment for the fabricated stainless steel shell and one (1) year
for all other components. Ludell's obligation is limited to repair or replacement f.o.b. Ludell's plant.
Please note that customer supplied water chemistry may adversely affect the equipment materials of
construction. If the water supply is aggressive, acidic or high in chlorides a higher-grade stainless steel
alloy must be utilized. Contact Ludell for a quote revision if your supply water chemistry is of poor
quality.