Product Overview

AQUA Plus®
5 Tank Sizes 35-105
BENEFITS THAT PAY

Eligible for most utility rebate
programs - check your local area
for details and current rebate
amounts.

GV90+

is the first cast iron gas
boiler vented with PVC — saving
90% over the cost of stainless
steel venting material per foot.

Simple diagnostics significantly
reduces troubleshooting time
by using flashing LED
lights to communicate errors
— no need to decipher codes
or read lengthy manuals.
Assuming the same heat output. These are general estimations, actual results may vary.
BENEFITS THAT
PROVIDE COMFORT
When matched with a Weil-McLain

indirect-
fired water heater, you will experience virtually
limitless hot water for bathing, laundry, dish
washing and cooking at a lower operating cost
compared to most other alternatives. Our
indirect-fired water heaters provide twice the
peak flow of a tankless coil, 50% more than a
comparable sized direct-fired gas water heater,
and three times as much as an electric unit.
Annual estimated savings for every $100 of fuel costs by increasing your
heating equipment eciency.
55% 60% 65% 70% 75% 80% 85% 90% 95%
50% $ 9.09 $16.67 $23.08 $28.57 $33.33 $37.50 $41.18 $44.44 $47.37
55% -------- $ 8.33 $15.38 $21.43 $26.67 $31.25 $35.29 $38.89 $42.11
60% -------- -------- $ 7.69 $14.29 $20.00 $25.00 $29.41 $33.33 $36.84
65% -------- -------- -------- $ 7.14 $13.33 $18.75 $23.53 $27.78 $31.58
70% -------- -------- -------- -------- $ 6.67 $12.50 $17.65 $22.22 $26.32
75% -------- -------- -------- -------- -------- $ 6.25 $11.76 $16.67 $21.05
80% -------- -------- -------- -------- -------- -------- $ 5.88 $11.11 $15.79
85% -------- -------- -------- -------- -------- -------- -------- $ 5.56 $10.53
90% -------- -------- -------- -------- -------- -------- -------- -------- $ 5.26
New / Upgraded System AFUE
Existing
System AFUE
Source:”Furnaces and Boilers.” Energy.gov. N.p., n.d. Web. 26 Apr. 2014.