Aqua Hot Questions...
for a MH "wanna be". We are considering a coach with the Aqua Hot system (I have read the operating manual) and are trying to find out a little more about it, so thank you in advance for any respon...
Forum Discussion
You have been given answers to most of your questions. I will answer the 2 that were not answered.
1. You MUST ask the dealer or OEM about specific bay heating concerns. ALL RV's are different and only they can answer your question.
2. The reason you cannot blow out a Aqua Hot type system is, the Hot Water copper tubes are extremely small in diameter and are coiled thru the Heater tank fluid. This is how you can get continuous Hot Water. Blowing out this coil system, according to Aqua Hot (their manual states this also) you cannot get all the moisture out from blowing out and this mist of water can run and form a small water droplets and THAT when freezing can burst the copper line. Aqua Hot does NOT sell that part and the only thing to do is either buy a new complete unit or ship the unit back to Aqua Hot for rebuild which still costs thousands of dollars. If you are using the unit and have the 120 element or the Diesel unit on, the unit cannot freeze. What you do to winterize is, blow out the complete RV and once done, you run RV antifreeze thru the water pump until the pink comes out the Hot water low point drain. That means the copper loop has RV antifreeze in it. Doug
1. You MUST ask the dealer or OEM about specific bay heating concerns. ALL RV's are different and only they can answer your question.
2. The reason you cannot blow out a Aqua Hot type system is, the Hot Water copper tubes are extremely small in diameter and are coiled thru the Heater tank fluid. This is how you can get continuous Hot Water. Blowing out this coil system, according to Aqua Hot (their manual states this also) you cannot get all the moisture out from blowing out and this mist of water can run and form a small water droplets and THAT when freezing can burst the copper line. Aqua Hot does NOT sell that part and the only thing to do is either buy a new complete unit or ship the unit back to Aqua Hot for rebuild which still costs thousands of dollars. If you are using the unit and have the 120 element or the Diesel unit on, the unit cannot freeze. What you do to winterize is, blow out the complete RV and once done, you run RV antifreeze thru the water pump until the pink comes out the Hot water low point drain. That means the copper loop has RV antifreeze in it. Doug
