Modified two-pass scotch marine boiler. The Hurst Boiler Series LPX 2-Pass Modified Wet Back Scotch Marine Boiler is designed for minimal clearances where installation and floor space are the challenge. Durable features start with the thickest vessel shell in its class, along with large furnace volume for ultimate combustion efficiency.

Mechanically embossed spiral ribs on the inside of the tube not only provide increased surface area but also lead to a complex gas flow with a boundary layer producing a separation/reattachment phenomenon.