If I blow my water lines out for cold weather and want to run my Aqua Hot to keep the interior and basement from freezing, will it hurt my water lines that run through the Aqua Hot boiler. I'm asking this because we may go north for a short time late fall early winter and all I'm planning on doing is emptying the water tank and blowing out the lines. We won't be living in the coach at this time, just leaving it plugged in and parked. Thanks.
I would reach out to support at Aqua Hot with your exact model. The internal tubing will see a greater temperature because of the lack of water but they may be designed to take it.
I talked with Aqua Hot and they recommended to not blow out the lines with air for fear of rupturing the coil through the boiler. Now when I blow my lines out I set my compressor to about 25 psi which is lower than the water pressure anyway so not sure if that is a factor. But yes, I found out that the heater can still run with the lines winterized with antifreeze.
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