Blaze King Industries Princess PI29 Insert (2) vs Stove Builder International Bistro Series (Bistro
The Blaze King Industries Princess PI29 Insert (2) is the cleaner burner: 1 g/hr certified particulate emissions versus 2 g/hr. The Blaze King Industries Princess PI29 Insert (2) is the more efficient unit: 80% versus 76% HHV — more heat from every cord. The Stove Builder International Bistro Series (Bistro produces more peak heat (50,200 vs 30,194 BTU/h), suiting roughly 1,450–2,000 sq ft. The Blaze King Industries Princess PI29 Insert (2) has the larger firebox (2.63 vs 2.26 cu ft), which generally means longer burns between reloads. Combustion technology differs: the Blaze King Industries Princess PI29 Insert (2) is a catalytic stove and the Stove Builder International Bistro Series (Bistro a non-catalytic stove — see the catalytic vs non-catalytic guide for what that means day to day.
| Blaze King Industries Princess PI29 Insert (2) | Stove Builder International Bistro Series (Bistro | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Non-Catalytic Stove |
| Certified fuel | Crib Wood | Cord Wood |
| Emission rate | 1 g/hr | 2 g/hr |
| Efficiency (HHV) | 80 % | 76 % |
| Heat output (low) | 9023 BTU/h | 14300 BTU/h |
| Heat output (high) | 30194 BTU/h | 50200 BTU/h |
| Firebox volume | 2.63 cu ft | 2.26 cu ft |
| Carbon monoxide | 0.704 g/min | 1 g/min |
| 25C tax credit eligible (≥75% HHV) | Yes | Yes |
| 2020 NSPS compliant | Yes | Yes |
| Currently in production | Yes | Yes |
| EPA certification number | 123-18 | 337-22 |
| Covered model numbers | Princess PI29 Insert | Bistro Series (Bistro, Gusto, Pyra, 600, HEC240, IW600) |
Frequently asked questions
Which burns cleaner, the Blaze King Industries Princess PI29 Insert (2) or the Stove Builder International Bistro Series (Bistro?
The Blaze King Industries Princess PI29 Insert (2): 1 g/hr certified particulate emissions versus 2 g/hr for the Stove Builder International Bistro Series (Bistro.
Are the Blaze King Industries Princess PI29 Insert (2) and Stove Builder International Bistro Series (Bistro 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.