Each A. O. Smith on-demand water heater is designed for a
specific application. Consult your sales representative or contact
A. O. Smith for specifications and recommendations on which
model is right for specific requirements.
A. O. Smith On-Demand
Gas Water Heaters
BTU Input
Approximate
Model
Natural / Propane
Hot Water Output (GPM)
Shipping
Number
Minimum
Maximum
Maximum
45º F Rise
77º F Rise
Weight (lbs)
INDOOR MODELS
ATI-305N
15,000
199,000/190,000
5.3
5.3
4.2
50
ATI-505N
15,000
199,000/190,000
8.5
7.4/7.1
4.2
50
ATI-705N
19,000
237,000
9.8
8.8
5.1
55
ATI-705AN*
19,000
237,000
9.8
8.8
5.1
55
OUTDOOR MODELS
ATO-305N
15,000
199,000
5.3
5.3
4.2
50
ATO-505N
15,000
199,000
8.5
7.3
4.2
50
ATO-705N
19,000
237,000
9.8
8.7
5.1
55
ATO-705AN*
19,000
237,000
9.8
8.7
5.1
55
* 705A models are ASME Certified.
For propane, change “N” to “P” in model number (ATI-305P).
Model Specifications
AMGBROO107 ©2007 A. O. Smith Corporation
A. O. Smith reserves the right to make product changes or improvements at any time without notice.
Printed in U.S.A
January 2008R
500 Tennessee Waltz Parkway
•
Ashland City, TN 37015
www.hotwater.com
I N N OVAT I O N O N D E M A ND
A. O. Smith’s complete line of tankless gas water heaters
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201866 AMGBR00107 1
201866 AMGBR00107 1
9/10/08 11:38:54 AM
9/10/08 11:38:54 AM
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