Install Instructions
Residen al Standard Gas Water Heater Use and Care Guide • 17
INSTALLATION
Residen al Standard Gas Water Heater Use and Care Guide • 17
INSTALLATION
2
On the old water heater, turn 
the control knob on the gas 
control valve to the   
  OFF posi on.
Gas
control
knob
Figure 17 - Turn gas control/temperature knob OFF.
3
Turn the manual gas valve for 
the water heater’s supply line 
OFF.
4
Open a hot water faucet and 
let the hot water run un l it is 
cool (This may take 10 min  
  utes or longer).
Figure 18 - Let the hot water run until it is cool.
WARNING! Be sure the water runs 
cool before draining the tank to reduce 
the risk of scalding.
5
Connect a garden hose to the 
drain valve and place the 
other end of the hose in a
 drain, outside, or in buckets. (Sedi-
ment in the bo om of the tank may 
clog the valve and prevent it from 
draining. If you can’t get the tank to 
drain, contact a qualifi ed person.)
6
Turn the cold water supply 
valve OFF. 
Figure 19 - Cold water supply in off position.
7
Using a standard fl at-blade 
screwdriver, open the drain 
valve. Sediment build up in 
the bo om of the water heater may 
hinder or prevent draining.
Figure 20 - Draining the old water heater.
8
Also open a hot water faucet 
to help the water in the tank 
drain faster.
9
When the tank is empty, 
disconnect the Temperature & 
Pressure (T&P) Relief Valve 
discharge pipe. You may be able to 
reuse the discharge pipe, but do not 
reuse the old T&P Relief Valve. A new 
T&P Relief Valve comes with your new 
water heater.
Figure 21 - Removing the T&P Relief Valve 
discharge pipe.
10
Allow the vent pipe and dra 
hood to cool. Once cooled, 
disconnect the vent pipe from 
the dra  hood. You may need to 
support the vent pipe un l the new 
water heater is in place. 
Figure 22 - Disconnect the vent pipe from the 
draft hood.
11
Disconnect the water pipes. 
Many water pipes are con-
nected by a threaded union 
which can be disconnected with 
wrenches. If you must cut the water 
pipes, cut the pipes close to the water 
heater’s inlet and outlet connec ons, 
leaving the water pipes as long as 
possible. If necessary, you can make 
them shorter later when you install the 
new water heater.
12
Confi rm the manual gas valve 
for the water heater’s supply 










