N51 – Nordhavn Yachts

Water Heater: Seaward #S1100 (11 gallon) (41.6 liters) for 240V and heat exchanger operation (60HZ) Quick Nautic BXS 45 LT boiler (50HZ) Thru Hulls: TruDesign composite non-metalic Each thru hull has a clearly visible tag indicating its function. Water Pump: FloJet Quad II demand pump 4.9 GPM-115Vac-45PSI #4300-143A with Groco PST-1. Plumbing

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Timeline of United States inventions (before 1890) - Wikipedia

1867 Water-tube boiler. A water-tube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. Water-tube boilers are used for high-pressure boilers. Fuel is burned inside the furnace, creating hot gas which heats up water in the steam-generating tubes.

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