A.O. Smith DW-1080, DW-720, DW-1210, DW-1350, DW-1480 Specification Sheet

Domestic Hot Water Boilers

MODELS

DW -720

UP TO 82% EFFICIENT HOT WATER SUPPLY BOILERS

The Dura-Max® series offers excellent performance and low-profile design flexibility for both
new construction and retrofit applications. A double-row, integral-finned copper tube heat
exchanger provides exceptional heat transfer efficiency. Each unit features a small footprint
with a built-in draft diverter for extra clearance to simplify installation. Reliable, quiet, drawer­mounted stainless steel burners resist corrosion, improve access for easy maintenance.

FEATURES

100% ALL NON-FERROUS HEAT EXCHANGER WATERWAYS

of individual tubes

GASKETLESS WET SECTION

positioned away from and outside the combustion chamber

DRAWER-MOUNTED, STAINLESS STEEL DURA-MAX® BURNERS

through

DW- 1810

COMPACT, LOW-PROFILE DESIGN

INTERMITTENT ELECTRONIC IGNITION

FACTORY-MOUNTED BRONZE-FITTED PUMP

reduces standby heat loss

MAXIMUM HYDROSTATIC WORKING PRESSURE: 160 PSI

MEETS CURRENT EDITION ASHRAE/IESNA 90.1

FIVE-YEAR HEAT EXCHANGER LIMITED WARRANTY

July 2011R

Revised November 2009

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OTHER DURA-MAX® FEATURES

DURA-MAX® OPTIONS

INPUT AND RECOVERY

Domestic Hot Water Boilers

MINIMUM CLEARANCES TO COMBUSTIBLES ­ALL MODELS

CM

12

18

REAR

VENT

Alcove

MODEL

NUMBER

BTU

INPUT

PER

HOUR*

720,000

840,000

1,080,000

1,210,000

1,480,000

1,810,000

GPH

OR

LPH

RECOVERY -GALLONS OR

LITRES PER HOUR AT

DEGREE RISE

22°C

8920

3007

11,381

3903

14,774

4388

707

3122

943

1073

1203

1342

78°C

1911

2230

2902

3880

4221

* Natural gas only

Revised November 2009

July 2011R

www.hotwater.com

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AOSDG25300