Pressure tank or tankless water system?

[Les C]

The fire on O'ahu is off this topic, as it is about a tankless water heater as a probable source, not a pressure-tankless pump. It could be a new thread. I did hear about this fire and it is interesting to know what the inspectors thought as to the source. Bad electrical wiring anywhere in a house could be a cause for a fire, not just an electric tankless water heater. Propane fixtures could be a fire source, but the gas apparently evaporates quickly, reducing its danger. Kerosene is difficult to ignite with a lit match or ember (but it does smell bad).