Question about Rinnai Toyostove Direct Vent Heater: Toyostove Laser 73 Shipping

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Toyo laser 73 Pinging noises during warmup and cooldown

I know The owners manual says it is normal to hear the metal expanding and contracting from the temperature change. But it is very loud. Both my monitors were quiet. Is there anything I can do to lessen the noise. It wakes me at night! Had I known this, I would have stuck with a monitor. This laser is one week old.

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  • motorhed Dec 27, 2007

    Still does it. It's coming from inside the cabinet. It sounds like the burner assembly. It's doing it mostly during cool down now. It's better than it was.

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  • Master
  • 625 Answers

Slightly loosen up a few screws on the cabinet

Posted on Dec 14, 2007

  • THOMAS MIERZWA
    THOMAS MIERZWA Dec 28, 2007

    I own a monitor 441. I do mostly all repairs myself as the guy up the road charges an arm and a leg for it. some repair parts I have to purchase from him - and I really regret going to him for parts. I broke the original view port glass and found a replacement from mc master-carr industrial supply. it is a piece of boro-silicate glass that is heat resistant and costs a lot less than MPI products. The gasket material I also got from mc master. got a 3'X4' piece for about $15 that I could cut with scissors to whatever size I needed. The connection between the "pot" and the heat exchanger is a movable tube with a composite gasket. as the pot and the exchanger heats up, the tube moves out a touch, but not enough so the gases escape into the room. when it cools down it moves back into the pot. check here for metal to metal contact.

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