Blaze King Industries Princess PI29 Insert (2) vs Hearthstone Quality Home Heating Products Clydesdale 8492
The Blaze King Industries Princess PI29 Insert (2) is the cleaner burner: 1 g/hr certified particulate emissions versus 1.16 g/hr. The Blaze King Industries Princess PI29 Insert (2) is the more efficient unit: 80% versus 79% HHV — more heat from every cord. The Hearthstone Quality Home Heating Products Clydesdale 8492 produces more peak heat (32,588 vs 30,194 BTU/h), suiting roughly 950–1,300 sq ft. The Blaze King Industries Princess PI29 Insert (2) has the larger firebox (2.63 vs 2.35 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 Hearthstone Quality Home Heating Products Clydesdale 8492 a hybrid — see the catalytic vs non-catalytic guide for what that means day to day.
| Blaze King Industries Princess PI29 Insert (2) | Hearthstone Quality Home Heating Products Clydesdale 8492 | |
|---|---|---|
| Appliance type | wood-stove | wood-stove |
| Combustion technology | Catalytic Stove | Hybrid |
| Certified fuel | Crib Wood | Crib Wood |
| Emission rate | 1 g/hr | 1.16 g/hr |
| Efficiency (HHV) | 80 % | 79 % |
| Heat output (low) | 9023 BTU/h | 14829 BTU/h |
| Heat output (high) | 30194 BTU/h | 32588 BTU/h |
| Firebox volume | 2.63 cu ft | 2.35 cu ft |
| Carbon monoxide | 0.704 g/min | 1.1 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 | 305-22 |
| Covered model numbers | Princess PI29 Insert | Clydesdale 8492 |
Frequently asked questions
Which burns cleaner, the Blaze King Industries Princess PI29 Insert (2) or the Hearthstone Quality Home Heating Products Clydesdale 8492?
The Blaze King Industries Princess PI29 Insert (2): 1 g/hr certified particulate emissions versus 1.16 g/hr for the Hearthstone Quality Home Heating Products Clydesdale 8492.
Are the Blaze King Industries Princess PI29 Insert (2) and Hearthstone Quality Home Heating Products Clydesdale 8492 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.