Waterman Gas Heater
Thanks to visitor Mario, I can present photos of a gas heater made by Henry Waterman. This sturdy heater is Model #140 and is marked H. Waterman NY Notice the barbed fitting to connect to a gas line.
Here’s a close-up view of the Waterman marking
Rival Gas Stove
This stove appeared on ebay in March 2010. According to the seller, it is marked H. Waterman below the gas shut0ff valves.
Here’s a link to the auction
If you look closely, you can see the Waterman marking above the oven door.