Extremely saddened by this. I'm so sorry for your loss. Houses can be rebuilt and possessions can be reacquired though. Thank god your wife and daughter are safe and sound that's truly all that matters. Sorry about your pets.
My family had a fire about 3 years ago - a faulty chimney flue in the house we were renting allowed sparks from the fireplace to ignite the side of the chimney / house.
Although we lost a lot of fish and possessions in the fire, I feel lucky every day that our family was unharmed.
In addition to checking smoke detectors, my advice is to check your insurance.
The fire department assumed that we did not have renters insurance because so few do (!) - less than 1/4.
We fortunately did have renters insurance (though USAA which is top-notch) and were able to replace our possessions and have a nice place to stay while finding a new house.