Welcome to our forum.
+I've read that elsewhere, doing a partial drain and refill. As for the gas hot water heater, that seems like a worthwhile way to refill. Even 40 or 50 gallon portions at a time would cut some heat demand when filling.?? On heat and heat loss, my cover feels plenty solid and heavy but rests on its own weight. Is that good enough?Even though it has the straps with buckles, it is not "cinching up" tight since the straps have some play in them and are not tight. I'm not sure there is any or much loss but is there a consensus on feeling like snugging up the cover is worthwhile? I could probably modify them pretty easy to work that way.