Question about Mr. Heater MH175KT Open Flame Utility

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Have a Mr. Heater 175000 BTU that is leaking at the bottom were the drain plug is located. The O-ring is cracked, I need a replacement for the O-ring. What size do I get?

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Tip the heater up so that the fuel is away from the drain plug hole and take the plug to an auto parts store. They have bulk o-rings there and can fit the needed O'ring to your plug.

I checked the parts manual:

http://www.mrheater.com/upload/newsletter/mh_50_75_125_150_175_210_BL.pdf

There is no drain plug listed for the tank. Only the tank assy. (Item 2)

You might even be able to get a copper crush washer similar to what is used on an automobile or motorcycle oil drain plug.

Kelly

Posted on Feb 28, 2010

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