FPI/Regency Fireplace Products F2500-1 vs Travis Industries Answer NexGen Hybrid (2)

Both stoves carry the same certified emission rate: 1.4 g/hr. The Travis Industries Answer NexGen Hybrid (2) is the more efficient unit: 80% versus 78% HHV — more heat from every cord. The Travis Industries Answer NexGen Hybrid (2) produces more peak heat (38,594 vs 29,795 BTU/h), suiting roughly 1,100–1,550 sq ft. The FPI/Regency Fireplace Products F2500-1 has the larger firebox (2.3 vs 1.4 cu ft), which generally means longer burns between reloads. Combustion technology differs: the FPI/Regency Fireplace Products F2500-1 is a catalytic stove and the Travis Industries Answer NexGen Hybrid (2) a hybrid — see the catalytic vs non-catalytic guide for what that means day to day.

FPI/Regency Fireplace Products F2500-1 Travis Industries Answer NexGen Hybrid (2)
Appliance type wood-stove wood-stove
Combustion technology Catalytic Stove Hybrid
Certified fuel Crib Wood Crib Wood
Emission rate 1.4 g/hr 1.4 g/hr
Efficiency (HHV) 78 % 80 %
Heat output (low) 13580 BTU/h 12252 BTU/h
Heat output (high) 29795 BTU/h 38594 BTU/h
Firebox volume 2.3 cu ft 1.4 cu ft
Carbon monoxide 0.51 g/min 1.322 g/min
25C tax credit eligible (≥75% HHV) Yes Yes
2020 NSPS compliant Yes Yes
Currently in production Yes Yes
EPA certification number 133-18 306-22
Covered model numbers F2500-1, I2500-1 Answer NexGen Hybrid

Frequently asked questions

Which burns cleaner, the FPI/Regency Fireplace Products F2500-1 or the Travis Industries Answer NexGen Hybrid (2)?

They are tied: both are certified at 1.4 g/hr of particulates.

Are the FPI/Regency Fireplace Products F2500-1 and Travis Industries Answer NexGen Hybrid (2) both EPA certified?

Yes — both appear on the U.S. EPA's current list of certified wood heaters, and every figure on this page comes from their certification records.