Technology | PM reduction | CO reduction | OGC reduction | Efficiency impact | Maturity & availability | Approx. cost |
ACC (automatic air control) | ≈30–60% [1,2,3] | ≈30–50% [1] | ≈30–50% [1] | Often +5–10% (steadier combustion) [1,4] | Built into many modern stoves (Quadra‑Fire ACC, Aduro‑tronic, Scan Zensoric) [4–6] | Integrated in stove price (ACC-equipped models ≈$2.6k–$3.9k) [7,8] |
ESP (electrostatic precipitator) | ≈70–95% [9–11] | ~0% [1] | ~0% [1] | Neutral [9] | Commercial retrofits (OekoTube, Airjekt 1) [9,11] | ≈€1,900–€2,700 device + install [10,12,13] |
Oxidation catalyst (internal/retrofit) | ≈30–66% (mass) [14] | ≈60–87% [14] | ≈20–80% (esp. WSCOC/PAHs) [14] | Often +5–10% (smoke oxidation) [15] | Catalytic stoves & retrofits available [1,15] | Retrofit ≈€400+; replacements $100–$700 [16,13] |
ACC + ESP | ≈92% (from residuals) [1,9] | ≈40% (from ACC) [1] | ≈40% (from ACC) [1] | Like ACC; ESP neutral [1,9] | Mature combo [1,9] | Sum of above |
ACC + Catalyst | ≈73% (from residuals) [1,14] | ≈85% (from residuals) [1,14] | ≈70% (from residuals) [1,14] | Often higher than ACC alone [15] | Mature combo [1,14,15] | Sum of above |
ESP + Catalyst | ESP for PM + Catalyst for gases; recommended combined mitigation [3,14,17] | Strong (via catalyst) [14] | Strong (via catalyst) [14] | Neutral to slight increase | Widely feasible (retrofits) [9,11,14,17] | Sum of above |