Question How much winterizing antifreeze?

[JohnArch]

I have a new to me 2017 American Dream 45a. I will be winterizing soon and asking how many gallons of antifreeze I will need. I had a 1999 Eagle for 10 years and that was roughly 9 gallons. Then a 2015 Entegra Aspire and that was roughly 3 gallons. Any help is appreciated.

 

[DavidL]

What water heater system do you have?
Blow the raw water out with air, then put antifreeze in until it exits all outlets. Start at the furthest from water supply. Buy 10 gallons and have the rest for next year. How many you use a lot depends on how long you let it run out of each outlet. Don't fill the water heater if it is a standard "keg style" (drain it). Definitely fill it if it's an Aquahot type.