Viewing instrument for chimney

Details Viewing instrument for chimney Viewing instrument for chimney

1986-06-02

1987-07-21

Green, Randall L.

Stoves and furnaces

Liquid heater

126307R, 126200, 350 961, 110193, 356438, F24B 118

Patent

active

046810862

ABSTRACT:
An instrument for viewing the vent of a chimney while the chimney is working that includes a quartz rod that is mounted in the chimney above the flue entrance thereto. The rod is adapted to transmit light travelling down the chimney to a viewing station outside the chimney wall to provide valuable visual information concerning the condition of the chimney and the burning efficiency of the fire.

REFERENCES:
patent: 4135824 (1979-01-01), Jones
patent: 4317615 (1982-03-01), Herold
patent: 4383761 (1983-05-01), Jones
patent: 4408827 (1983-10-01), Guthrie et al.
patent: 4434784 (1984-03-01), Van Patten

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