Will my gas pool heater corrode if I empty my pool?

We will be resurfacing our swimming pool this coming week. To do this, we must completely empty it. A gas heater is used to warm the pool during winter.
When we empty the pool, water sitting in the gas heater and its piping will drain out into the pool. I am concerned about possible corrosion within the heater due to oxygen causing corrosion inside the water pipes of the heater.
Is this a concern, in your opinion?
The pool will not likely be refilled for 2-3 weeks.
 

cowboycasey

Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
7,879
Southern OK
Pool Size
15000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool SJ-40
Not worried about the heater at all.. I am concerned about the pool.. Is there any water under the pool? High water table? Just not sure in Australia if you have that to worry about it... :)
 
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