Phelps: We came as soon as we could.
Albert: Biggs, you two are investigating the house fire on Kenmore Avenue as well?
Biggs: Yep. Why?
Albert: I had to look around the place while I was out there.
Phelps: Do you believe the fire...
Albert: I deal in facts, Phelps. Evidence of an explosion. No obvious signs of accelerants. Wiring looks intact. Come and take a look at this.
Biggs: This is the heater from the Sawyer fire, Al?
Albert: Yes, it is.
Phelps: Looks like it was recently serviced.
Albert: I have a theory, and it's a theory only. I don't have enough evidence to prove...
Biggs: Al, if you say it's so worthless.
Albert: Okay, Phelps, you're bright penny. You have a gas supply. You have a bunsen burner as a pilot light. You have a regulator valve, and the balloon represents the gas expanding in the room. Now, the gas has to make contact with the mosquito coil to form an explosion. Let's see if you can work out the chain of events.
Biggs: The gas bubble needs to be next to the coil if it's going to ignite.
Albert: Good, your regulator is in position. Okay, I will light your pilot and turn the gas on.
Biggs: You pull the lever on the left to turn on the gas.
Phelps: Oh, so that's how it's being done.
Albert: Maybe. There could be a fault with these valves. I've adjusted this one prior to the experiment, but you need to take InstaHeat and see what they say. Their headquarters is on North Harvard Boulevard, number 262.
Biggs: Thanks, Albert.
Albert: You're welcome, Biggs. See you at the next show.
Phelps: You know the way, you can drive.
Biggs: Fine, where are we heading?
Biggs: The next fire. You should go to the factory and see how many of these things are going bang in the night.
Phelps: You know this Chapman character?
Biggs: The guy is a freak. He loves fires. He's the kind of guy that we'd like for a lot of things but we don't really have any credible evidence to pursue him with.