The cause of a fire that destroyed a Corvallis man's house on Hamilton Heights Road almost three weeks ago will likely go down as undetermined.

Corvallis rural fire chief Jim Knapp said investigators speculate the fire started in a vehicle in Dave Brown's carport.

But firefighters moved vehicles for safety during the fire, making the case difficult to prove.

Because of the cost, Knapp said it's unlikely the insurance company will proceed further.

Brown lost everything in the weekend fire, including his dog.