My 29HFS "had" only coroplast belly.... no insulation under floors... nada on or around tanks. I thought of adding the tank heaters, but elected to be cheap... when I had the belly off I insulated the floor with Reflectix (stem to stern), wrapped water lines and sealed it all up with tape and foam.
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Hyper Lite was sold
2017 F-250 4x4 6.2L Gas
I can't fix everything, but I can make it so nobody else can
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