Series 500

Scotch Marine

Scotch Marine (Fire Tube) Boilers

Our two-pass, three-pass or four-pass Scotch Marine(Fire Tube) boilers are available in dryback, wetback, steam or hot water versions; from 15 to 800 hp with pressures to 300 psig.

Hurst Scotch Marine boilers are rated to 81% minimum efficiency. They are designed with davited rear doors for minimum maintenance and rugged construction for extra-long life. UL listed boiler/burner packages for firing gas, oil or a combination of both. They are factory tested and checked for optimum operating efficiency.

Series 200

Series 200

Two Pass Dry Back Scotch Marine Boiler

Two pass dry back scotch marine boiler. Two pass design eliminates refractory baffles between flue gas passes. Minimum maintenance with rugged construction for extra-long life. Efficiencies allow for burning number 5 and number 6 oil with complete combustion with low heat release.

Series 250

Series 250

Two Pass Dry Back Packaged Scotch Boilers

Two-pass semi wet-back scotch marine boiler. Two pass design eliminates refractory baffles between flue gas passes. Efficiencies are equal to 3 and 4 pass boilers in many cases.

Series 300

Series 300

Three Pass Dry Back Packaged Scotch Boilers

Three-pass dry back scotch marine boiler. Rear smoke box includes slip-on stack connector and features hinged and davited rear doors.

Series 400

Series 400

Three-Pass Wetback Scotch Marine Boilers

The Hurst 400 Series three-pass wetback scotch marine boiler is an ideal choice for all commercial and industrial applications when engineering mechanical systems using the latest HVACR technologies. The Hurst 400 Series Boiler provides fuel efficiencies that exceed most  four-pass designs. Having no large refractory rear door, these boilers allow one technician easy access to all tubes. The boilers' front doors can be opened without removing any burner components or controls.

Series 500

Series 500

Four Pass Packaged Scotch Marine Boilers. Available with LOW Nox.

Capacities From 30 to 2,000 HP 670 to 3,348 MBTU/HR. 15 PSI Steam 30 PSI Water (60 PSI Water Optional)

LPW Series

Three Pass Firetube Hot Water Boiler With Through the Door Design!

Modified three-pass scotch marine fire tube boiler. 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.

LPE Series

Modified Scotch Marine Boiler Designed to Fit Through a Standard 36"x80" Door

Modified three-pass scotch marine steam boiler. Designed to fit throu a standard 36"x80" door opening. Durable features start with the thickest vessel shell in its class, along with large furnace volume for ultimate combustion efficiency.

Ohio Special

Ohio Special

Three Pass Wet Back Design Scotch Marine Boiler

Three Pass Wet Back Design Scotch Marine Boiler. Extra large furnace for low heat release.

Euro Series

Euro Series

3-Pass Firetube Boiler With Wetback Construction

Available in 8 Models from 100 - 2000 BHP. Steam Pressures to 15-300 PSI. Hot Water Section I and Section IV

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