Main product image of AB-155H AquaBalance Heat-Only Wall Mount Gas Boiler, 125,000 BTU (NG)

Hover image to zoom

AB-155H AquaBalance Heat-Only Wall Mount Gas Boiler, 125,000 BTU (NG)

Name: AB-155H AquaBalance Heat-Only Wall Mount Gas Boiler, 125,000 BTU (NG)
Brand: Weil-McLain
SKU: 383-100-055
Price: 2718.88 USD
Availability: OutOfStock
Rating: 5 (1 reviews)

Brand:

Weil-McLain

SKU:

383-100-055

Rating:

(1)

Q&A:

(0)

AB-155H AquaBalance Heat-Only Wall Mount Gas Boiler, 125,000 BTU (NG)

Hover image to zoom

383-100-055 has been discontinued

Discontinued June 25, 2026

This product was discontinued by the manufacturer.

BTU Input:

155000

Application:

Heating

Combi Heating/Hot Water

Heating

Combi Heating/Hot Water Heating

MANUALS (9)

Replacement Parts List

Federal Tax Credit Form

This item replaces: 383-100-005

Schematic Feature!

Replacement Parts

Product Highlights

–

125000 Max BTUs

Natural Gas

Direct Vent

Hydronic (Water)

155000 BTUs

27.56" Height

Description

–

Heating equipment must be installed, commissioned, and serviced by a licensed and qualified professional in accordance with manufacturer instructions, applicable codes, and industry standards. Manufacturers do not accept warranty or technical support requests from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for the installation.

This product qualifies for a federal tax rebate of up to $600. Federal Rebate click for more info

In addition to the federal rebate, you may also be eligible for rebates from your local utility company and state. Search your zip code in the link below for information about local rebate programs that may apply to you. Weil-McLain Rebate Center

Please find optional LP conversion kit here.

Features

95% annual fuel utilization efficiency (AFUE) - low fuel usage, saves energy
Natural or Propane (LP) gas operation - factory shipped as NG, optional LP conversion kit
Compact design - increases placement options
Heavy gauge insulated jacket - provides quiet operation
10-to-1 turn down ratio - precisely matches minimal energy usage to the immediate system need
Low NOx rated - low emissions level achieved South Coast certification
Single tube, large diameter, ASME certified 316L Stainless Steel heat exchanger
Pre-wired, plug-in ready electrical design
Contractor friendly removable sides - makes service clean and easy
Wall mounting bracket and hardware
Honeywell boiler control with digital display
Commercial grade 120V power cord with 3 prong plug
Unique 3-in-1 vent adapter - approved to accept PVC, CPVC, SS or PP vent materials
Multiple vent options - direct vent with 2 pipes or concentric, through sidewall or roof
Internal condensate trap
24VAC thermostat relay
Factory tested

Specs

–

Application:	Heating
Fuel Type:	Natural Gas
IBR Rating:	125000
BTU Output:	125000
BTU Input:	155000
DOE Rating:	144000
System Type:	Hydronic (Water)
Efficiency:	95%
Height (Inches):	27.56"
Vent Type:	Direct Vent
Features:	Condensing EI/Spark Ignition Wall Mounted
Energy Star Rated:	Yes