Yes I was warned in fall of the poor design Furrion 2.4 gal. tankless water heater mod. FWHO9A-AM by a Reggie (Paridise in a tin can) about the poor design of the heater as his sister bought a new RV in fall of 21 took out in spring of 22 to use for 1st time and water heater froze and the mixing bowl cracked and broke even thou the rv sales place winterized it. Seems its very hard to get the pink antifreeze in the bowl. I was really concerned that this would happen to mine tried to take extra care when winterizing and made sure I saw pink come out of heater drain but when I just brought it out last week water was gushing out of my enclosed underbelly area on inspection when pulling the heater out saw the mixing bowl was cracked. I barely even used this 22 RV and broke already. Reggie that made a you tube video on this subject seemed like a very good mechanic and was able to fix his. I am in contact now with GD. customer service about getting a replacement for this poorly designed made in China heater as there are no replacement parts for it. I also realized how hard it is to service anything under your rv as everthing is enclosed with no access unless you some how take the the thing down. Any one have any suggestions how to gain access? I realize now why so many people have problems with mold as with the way they are so cheaply plumbed and put together you can get leaks galore and not know it till you have a full blown problem.