Preferred Series
Preferred™ Series BW4 Boiler
Model: BW4|Boilers
AFUE
Up to 86.2%
Professional Installation
Financing Available
5-year parts limited warranty and a 20-year parts limited warranty on the heat exchanger section
Manufacturer Overview
Bryant’s Preferred™ Series boilers combine high-efficiency operation with hard-working durability for whole-home comfort.
Description provided by Bryant®. HRS-written description coming soon.
Specifications
AFUEUp to 86.2%
Warranty5-year parts limited warranty and a 20-year parts limited warranty on the heat exchanger section
ENERGY STARNot Qualified
Key Features
Oil fuel
Up to 86.2% AFUE
Sectional cast-iron design
Manufacturer Information
Brand
Bryant
Category
Boilers
Model Number
BW4
Source
Official Bryant® Website
Last verified: 8/18/2026
Interested in the BW4?
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