David:
Sorry to hear of your loss but glad you are safe. Lipo care is a tough thing. They are so useful but do require extra care. I too know of fires damaging cars, golf carts and homes. I use the product from batterybunker.com. It is a ceramic jar that will contain a lipo fire and it is vented. I also have a friend that who uses the batterybunker and it saved his house one day when a cell went off during charging. The thing you have to be careful of is that they are very rough inside and if you travel with the batteries in the jar, they will wear on the corners. Too much wear on the corners and you will expose the cell and have a fire.
Paul