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Oil Fired Secondary Safety Kit
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$119.12 each
In Stock
Get 33 Fri, Jan 24
MANUALS (1)
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Easy Returns No restocking fee for 90 days
Description
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The WMO-1 blocked vent switch is recommended for installation with an
oil fired appliance that normally
operates with its vent system under a
negative pressure. This device is
intended to detect a blocked vent
system, responds to hot flue gases
backing up through its heat transfer
tube, and can be wired to shut off the
oil burner. It requires manual resetting.
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