Water Heater
This is an all steel unit that has water flowing through the middle with fuel around the outside. This isn't a Vow2 product but for those looking to add water heating to your system this is one that we endorse. It simply fits in the water and fuel lines to give additional heating once your up and running.
As this is not our item we offer no warranty whatsoever. Defects should be reported to the manufacturer for repair.
With no parts to burn out and no moving parts it should be good for years.