Jayco RV Owners Forum

Thread Tools Display Modes
Old 10-02-2015, 03:27 PM   #1
Senior Member
LI-Camper's Avatar
Join Date: May 2013
Location: Long Island, NY
Posts: 237
Winterizing Tankless water heater

I have one of the Girard tankless water heaters. This fall will be the first time I will be winterizing my 2016 Greyhawk. Is there anything special I have to do in order to winterize the water heater? I have previously winterized a 2004 Greyhawk that had a water heater with a tank and bypass valves. I use the pink antifreeze. Thanks for any suggestions.


2016 Greyhawk 29MV

Wherever you go, there you are!
LI-Camper is offline   Reply With Quote
Old 10-02-2015, 03:52 PM   #2
Join Date: Jun 2015
Location: Currituck, NC
Posts: 87
You don't need to do anything special except have the switch off so it does not heat up. Also remember to drain it first.



Steve & Sharon
2015 Precept 31UL
Tow - 2010 Honda CR-V
gmapatime is offline   Reply With Quote
Old 10-02-2015, 05:37 PM   #3
Senior Member
Griswald One's Avatar
Join Date: Jul 2015
Location: Brooklin, Ontario
Posts: 471
Good call on turning the heat off... this will be my first winterizing with the tankless as well and I am not sure I would have thought to do that.

Griswald One - Life is a Misadventure!
2015 Greyhawk 29ME / Chevy Sonic
Griswald One is offline   Reply With Quote
Old 10-02-2015, 09:31 PM   #4
Senior Member
Join Date: Dec 2014
Location: North Central Texas
Posts: 382
Not sure if yours is the same setup as on Seneca but there is a drain line by the HW heater on mine.

2015 Jayco Seneca 36 FK
2016 Jeep Wrangler Unlimited tow
2010 Tiffin RED 36 QSA - gone
2011 Monaco Monarch class A - gone
WaltW is offline   Reply With Quote
Old 10-03-2015, 03:02 PM   #5
Senior Member
Robbbyr's Avatar
Join Date: Dec 2014
Location: Akron
Posts: 1,339
My Girard manual says for extended winter storage you should winterize the heater by one of two methods to ensure no water remains in the heater that could freeze. The methods Girard recommends are compressed air purging or actual RV antifreeze filling.

My unit does have freeze protection when turned on so long as you have propane and battery power. It will cycle the burner to maintain a water temperature between 38 and 58 degrees. But this is not a substitute for proper winterization during long-term storage where freezing is suspected.
Robbbyr is offline   Reply With Quote
Old 11-08-2017, 02:23 PM   #6
Junior Member
Join Date: Oct 2017
Location: Camano Island
Posts: 2
Can someone post a picture of the drain release so I can know if I did it right? I pressed on the trigger shaped item but NO water came out.

cobrar543 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 01:16 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.