Blueprint: Low-Cost Chimney Hood for Solid-Fuel Cookstoves — Build and Implementation Specification

Build and implementation specification for a sheet-steel chimney hood over a solid-fuel cookstove: a 0.9 m x 0.9 m hood with its rim 0.60 m above the fire, a 200 mm diameter flue of 3.5 m effective height giving 12.02 Pa draft and 0.0689 m3/s effective flow, and a rotating anti-downdraft cowl with its outlet 0.6 m above the roof ridge, at a component cost of $63 with a modelled 66.3% PM2.5 exposure reduction. DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT, NOT CLINICALLY TESTED. Blueprint for the design published as DOI 10.5281/zenodo.24109044.