Good Sam Club Open Roads Forum: General RVing Issues: tankless waterheater question
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in General RVing Issues

Open Roads Forum  >  General RVing Issues

 > tankless waterheater question

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
SUMRX4

VA

Senior Member

Joined: 10/05/2005

View Profile


Offline
Posted: 11/08/21 11:56am Link  |  Quote  |  Print  |  Notify Moderator

So I'm new to tankless WH in an RV. When you winterize do you store them with antifreeze in the lines or can you effectively drain and blow them out? When I bought the unit during the PDI I was told to always put antifreeze in it because there is no way to get all the water out. I want to do what's going to protect my heater best but would live to avoid storing antifreeze it in.

pianotuna

Regina, SK, Canada

Senior Member

Joined: 12/18/2004

View Profile


Offline
Posted: 11/08/21 02:40pm Link  |  Quote  |  Print  |  Notify Moderator

use anti freeze.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, soon to have SiO2 batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

magicbus

Nantucket Island, MA

Senior Member

Joined: 06/16/2002

View Profile



Posted: 11/08/21 03:52pm Link  |  Quote  |  Print  |  Notify Moderator

If it is truly tankless I would run anti-freeze through it. If it has my kind of tank you should add a bypass valve for winterizing. Personal preference, I open the drains and lose the anti-freeze after running it through the pipes.

Dave


Current: 2018 Winnebago Era A
Previous: Selene 49 Trawler
Previous: Country Coach Allure 36


Chum lee

Albuquerque, NM

Senior Member

Joined: 08/03/2015

View Profile


Offline
Posted: 11/09/21 11:28pm Link  |  Quote  |  Print  |  Notify Moderator

SUMRX4 wrote:

So I'm new to tankless WH in an RV. When you winterize do you store them with antifreeze in the lines or can you effectively drain and blow them out? When I bought the unit during the PDI I was told to always put antifreeze in it because there is no way to get all the water out. I want to do what's going to protect my heater best but would like to avoid storing antifreeze it in.



Hummmmmmm. No information about the specific unit you are talking about or where/how/what it's installed in. I would suggest you read the manual that came with the tankless WH along with the general information in the manual that came with your RV.

Chum lee

mobeewan

Hampton, Va

Senior Member

Joined: 01/03/2007

View Profile



Posted: 11/10/21 10:35am Link  |  Quote  |  Print  |  Notify Moderator

You should run antifreeze through it if the trailer is going to see freezing temperatures. On-demand water heaters are built similar to a car radiator but acts in reverse. There are many tubing bends and flat sections of tubing that can hold water.

I have a portable outdoor on-demand water heater I have used when tent camping, with my pop up and when bathing the dog outdoors at home. After sitting for awhile thinking it was drained I picked it up to move it and water dribbled out. After using it I always bring it inside at home to store it. If I were to leave it outside in the shed for winter, I would definitely put antifreeze through it.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  General RVing Issues

 > tankless waterheater question
Search:   Advanced Search

Search only in General RVing Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2022 CWI, Inc. © 2022 Good Sam Enterprises, LLC. All Rights Reserved.