Question about Rinnai Toyostove Direct Vent Heater: Toyostove Laser 73 Shipping
After some time of operation the stove begins to make a very loud humming noise, the flame in the burning chamber gets bigger and turns orange, It seems if we squeeze the intake hose to slow/stop the flow of air into the system for a moment it will stop for a few minutes.
The toyostove is basically a glorified monitor heater. its components are a combustion blower, an air circulator fan, a flame pot, a flat wick or burner mat, a solenoid pump, an ignition element, double walled intake, exhaust pipe. the combustion blower is a glorified vacuum cleaner motor. it sucks in cool air and channels it to the combustion chamber along the sides (round cylinder) kero enters on the burner mat where it ignites. the solenoid pump keeps adding kero until the flame detector spots or heats up. air flow to the pot is regulated by a damper in the combustion air blower line. if the "O" ring in the damper is missing or hardened it will not regulate the air flow which is necessary for combustion. replace this "O" ring should take care of your problem.
Posted on Oct 18, 2007
Your L56 is an older unit and has been around a while. The noise is due to the burner mat or coating being erroded. Your burner pot needs to be cleaned and a new mat or coating and a new burner ring installed. An F model Toyostove has been around since about 1990. It's time my friend.
Posted on Jan 07, 2009
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Posted on Jan 02, 2017
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