Carrier Boiler Consumer Brochure
Delivering up to 84.4% AFUE efficiency, this boiler offers moderate energy efficiency for your home.
BW3
Reliable and efficient home heating tailored to your comfort.
Dependability meets efficiency. With up to 84.4% AFUE, this gas-fired, hot-water output boiler ensures comfortable radiant heating while helping manage your heating costs. Its durable cast iron heat exchanger and compact design make it a long-lasting, space-friendly heating solution for your home.
Engineered for consistent and steady warmth throughout your home, this model ensures you stay comfortable even in colder months.
Helps maintain balanced indoor humidity levels to enhance your home's comfort, keeping you warm and comfortable.
Experience peace of mind with Carrier's Consumer Choice Warranty. Upon timely registration, on eligible equipment select either a 10-year parts only limited warranty or a 5-year parts, plus a 3-year labor limited warranty.¹
Heating Efficiency
Up to 84.4% AFUEGas Valve
Single-StageHeat Exchanger
Cast IronIgnition Type
Electronic ignitionSize
Available in various sizes to accommodate most homesExperience reliable home heating designed for both comfort and practicality.
4.7 /5
4.7 rating of Reviews (6)
New boiler product
July 23, 2023
Carrier has been the standard in this area (Syracuse) for many, many years so I wanted the best.
Great Boiler
March 24, 2022
I'm happy I went with this boiler.
My Carrier Gas Furnace Experience has been Excellenlent
October 18, 2021
Excellent furnace
I am satisfied
March 10, 2021
I hoped for a little more efficiency, since I was replacing a 40 year old unit. It does provide very steady heat and have had no issues so far.
Just like 1800s
April 25, 2020
Beautiful heater for price and the scientific structure of craftsmanship a plus..
Very good
February 26, 2020
Very good, works great
Brochure
Carrier Boiler Consumer Brochure
Owner's Manual
Cast Iron Gas Boiler for Forced Hot Water Owner's Guide - BW3A
Manuel D'Information De L'Utilisateur - BW3A
BS1,BS2,BW1,BW2,BW3 Gas-Fired Water and Steam Boilers
Warranty Card
Boiler Limited Warranty
Garantie limite'e des chaudie'res
Certificado de garantía limitada Productos incluidos: Sistemas de calderas residenciales (ver tabla a continuación)
California residents please see Proposition 65
Legal disclaimer
1. To the original owner on eligible equipment for eligible residential applications. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty, which can be changed to the 5-year parts, plus a 3-year labor option on eligible equipment within the first 90 days after installation. The 5-year parts, plus 3-year labor warranty option is available only if the installing dealer/contractor has elected to participate in the Consumer Choice warranty program and has accepted the Consumer Choice dealer terms and conditions.