Bryant Bryant BW3 (Preferred 84 gas boiler)

The BW3 appears on Bryant's current US boilers page as the Preferred 84 gas boiler, and the page's filter group places it in the 80 to 84.9% AFUE band. Bryant's consumer brochure prints the up-to-84.4% figure and groups the BW3 with the Legacy 84 BWB as the brand's 84%-class gas boilers, both covered by a 10-year parts and 20-year heat exchanger limited warranty upon timely registration.

Bryant's document library publishes the BW3A owner's guide (Cast Iron Gas Boiler for Forced Hot Water, OG-BW3A-01), so owners of an installed unit can work from the manufacturer's own document for that generation. No per-model rating rows are printed on the official BW3 page - it lists the model's efficiency, gas valve type, heat exchanger and ignition, but not per-size inputs or outputs - so Boilers.ca publishes the series without model-level records.

The BW3 is a US catalogue product: carrier.ca, the Canadian residential HVAC site of Bryant's corporate family, lists no boilers, so the series is recorded canadianStatus 'unknown'. Any installation, gas, combustion or venting work belongs with a licensed contractor working from the unit's own documentation.