GSW Signature Series Electric Manual

GSW_ProdCatalog_CVR_JBH_.qxd 3/7/08 1:49 PM Page 1

Another hot water
solution from John Wood®.
John Wood®water heaters by Noritz are brought to
the Canadian market through the exclusive partnership
between GSW and Noritz. They complement GSW's portfolio
of high performance residential and commercial gas water
heating solutions. John Wood®also offers a full-range of
accessories that makes installation quick and easy. The
unique snap-together design of our N-Vent system saves
time and money. N-Vent telescopic elements completely
eliminate the need to cut vent pipe.
As a green building product it's
environmentally friendly too!
John Wood®water heaters are extremely energy
efficient, maximizing output while maintaining
low emissions.
Features
• Abundant hot water
• Energy efficient
• Space savings
• Safe & reliable
• Easy to install
N-Vent – the most
advanced venting
system on the market.
Installation made simple
and efficient.
Warranty 1. Warranty terms are set out on the warranty certificate enclosed with each unit. 2. Warranty replacements are issued only in the case where a John Wood® heater is used to replace an approved John Wood®warranty claim. 3. Extended warranty sticker programs are available.
John Wood and John Wood Water Heaters are Registered Trademarks of GSW Water Heating. GSW Water Heating is a division of A.O. Smith Enterprises Ltd.
Type Inner Tank Parts Residential Water Heaters 6 years 1 year SpaceSaver®Models (except SS025 – 5 year) 6 years 1 year PRO Models 8 years 2 years Indirects 5 years 1 year Storage Boosters 5 years 1 year Residential Oil Fired* 6 years 1 year (excludes burner) Commercial Water Heaters 3 years 1 year Insulated Commercial Storage Tanks 5 years 1 year Range Boilers 1 year N/A Bare Commercial Storage Tanks 1 year N/A Commercial Polaris®3 years 1 year Residential Polaris®10 years 1 year Tankless Residential 10 years 3 years Tankless Commercial 3 years 3 years Diaphragm Pump Tanks 5 years N/A Potable Expansion Tanks 5 years N/A Hydronic Expansion Tanks 5 years N/A * Oil burners are guaranteed by burner manufacturer.
GSW_ProdCatalog_CVR_JBH_.qxd 3/7/08 1:49 PM Page 2

Table of Contents
GSW Water Heating 1
RESIDENTIAL PRODUCTS
GSW Safety Systems 3
Residential Gas 4
Residential Propane 6
John Wood®Power Vent 8
John Wood®Power Direct Vent 12
John Wood®Direct Vent 14
Residential Electric 16
SpaceSaver®18
Residential Oil 20
Oil Fired Burners 22
Polaris®24
Storage Booster Tanks 26
FlowTHRU®28
Indirect Water Heaters 30
Diaphragm Pump Tanks 32
Thermal Expansion Tanks 34
Range Boiler 36
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 1

Table of Contents
COMMERCIAL PRODUCTS
Signature Series 37
Signature Series Gas 38
Signature Series Propane 40
Conversion and De-rate Kits 42
Power Vent Kits 43
Signature Series Electric 44
Commercial Oil 46
Signature Series Storage Tanks 48
Light Duty Commercial Gas 50
Light Duty Commercial Electric 52
Polaris®54
TANKLESS PRODUCTS
John Wood®by Noritz 57
APPENDICES
Cross-Over Matrix 61
Sizing Guide 63
Ohm's Law 65
Reference Guide for Water Heating 66
Innovative Designs and Service and Support 72
GSW does not represent and/or warrant in any manner the information and
suggestions contained in this brochure. GSW maintains a policy of ongoing
product improvement. This may result in modification of features and/or
specifications without notice.
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 2

1
GSW Water Heating
A leader in residential and commercial water heaters, GSW has evolved
from a wood-burning stove company to a world-class designer and
manufacturer of electric, natural gas, propane and oil fired water
heaters. Backed by the company’s manufacturing history of more than
150 years, GSW is recognized for design innovation and exceptional
reliability.
Professionals recognize GSW brand names, such as John Wood®, for
their unrivaled quality, efficiency and reliability. In fact, contractors have
been trusting John Wood®for more than 50 years.
The new John Wood®Signature Series has been specifically designed
for the needs of the professional installer. Our new gas models now
deliver lower profiles for easy installation and maintenance, as well as
smaller vent diameters and ultra-accurate dual electric thermostats
for precision and control. What’s more, our Signature Series electric
models are custom built-to-order to ensure your exact specifications
are met. All our heaters offer advanced features such as TankSaver®
stainless steel inserts and glass-lined tanks for longer life.
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 3

2
GSW Water Heating
GSW is one of the largest North American water heater manufacturers
and a major supplier of residential and commercial water heaters
worldwide. We have built an organization that strives for excellence at
every stage. Our Research and Development Team constantly develops
prototypes for continuous improvement, while our CSA-certified lab
tests efficiency, performance and safety. Our inspectors maintain our
stringent quality control standards, and our Technical Service
department provides customers with product information and technical
support. Moreover, GSW offers customized solutions for order
management and logistics needs. From design to manufacturing, from
service to support, GSW is committed to delivering products renowned
for their technological innovation and unparalleled quality.
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 4

Residential
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 5

GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 6

3
GSW Safety Systems
Flammable Vapour Ignition Resistant
(FVIR) technology you can trust.
GSW Water Heating has developed three unique Flammable Vapour
Ignition Resistant (FVIR) Safety Systems that reduce the risk of
accidental fires caused by the ignition of flammable vapours from
products such as gasoline, paint thinner and solvents: the Flame
Guard®and Flame SafeTM Safety Systems and the Superflue®
Safety System.
Flame Guard®Safety System
The Flame Guard®Safety System is a recognized and proven
technology, exclusive to GSW and John Wood residential gas
water heaters. The award-winning Flame Guard®Safety
System protects the consumer by trapping burning vapours within the
water heater combustion chamber through the patented “Flame-Trap.”
As long as the vapours are present and within the flammability range,
they will continue to burn safely until they “burn themselves out.”
Flame SafeTM Safety System Used
on John Wood®DV Water Heaters
Flame SafeTM technology - designed to protect the consumer
against the ignition of flammable vapours.
Superflue®Safety System Used
on John Wood®PV Water Heaters
The Flammable Vapour Ignition Resistant (FVIR) Superflue®Safety
System is a cutting-edge design unique to GSW power vented
residential gas water heaters. The Superflue®Safety System features a
flammable vapour sensor that protects the consumer by detecting the
presence of flammable vapours in the atmosphere around the water
heater and disabling the unit to minimize the risk of ignition. It also
features a robust air intake snorkel that inhibits flammable vapours
from entering the combustion chamber and igniting.
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 7

4
Residential Gas
Proven Technology. Exceptional Reliability.
Peace-of-mind.
• Glass-lined inner flue prevents scaling.
• Robust 1/4" pilot tubing for durability.
• Exceeds new NRCan energy
requirements.
• Large viewport for easy access
to pilot.
• CFC-free foam insulation.
C
D
A
B
GSW_ProdCatalog_Inside.qxd 3/7/08 1:51 PM Page 8