Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30
Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30 is a non-catalytic hydronic heater from Fröling Heizkessel und Behälterbau Ges.m.b.H with 77% HHV efficiency and a 12,997–99,594 BTU/h output range.
General
Appliance type
hydronic-heater
Combustion technology
Non-Catalytic Stove
Certified fuel
Cord Wood
Covered model numbers
S3 Turbo 30
Efficiency
Efficiency (HHV)
77 %
Heat output
Heat output (low)
12997 BTU/h
Heat output (high)
99594 BTU/h
Firebox volume
4.45 cu ft
Emissions
Carbon monoxide
2.5 g/min
Certification
25C tax credit eligible (≥75% HHV)
Yes
2020 NSPS compliant
Yes
Currently in production
Yes
EPA certification number
51HH-23
What space does the Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30 suit?
The 4.45 cu ft firebox puts it in the large-home, overnight-burn
class.
Certified burning Cord Wood — the test fuel closest to real-world firewood.
Is the Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30 EPA certified?
Yes, the Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30 is on the EPA's current list of certified wood heaters (certification number 51HH-23) and meets the 2020 NSPS Step 2 emission limits.
Does the Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30 qualify for a federal tax credit?
No — the federal 25C credit for biomass stoves was terminated for property placed in service after December 31, 2025. The Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30's certified efficiency is 77% HHV, which met the credit's ≥75% HHV threshold while it existed. State and local incentive programs may still apply — check your state energy office and air district.
