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Weil-McLain Boiler AquaBalance Boiler Series 2

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Weil-McLain Hydronic heating Boiler Repair, maintenance, and replacement planning
Weil-McLain AquaBalance Boiler Series 2 product image

Technical Specifications

Product Specs

  • Brand: Weil-McLain
  • Official product name: AquaBalance Boiler Series 2
  • Product page: https://www.weil-mclain.com/products/aquabalance-series-2/
  • High-efficiency residential/light-commercial boiler
  • Available as heat-only or combi space/DHW boiler
  • Up to 95% AFUE product family
  • Input sizes include 80, 120 and 155 MBH
  • ASME certified 316L stainless steel heat exchanger
  • Natural gas or propane operation with LP conversion option
  • PVC, CPVC, polypropylene or stainless vent material support
  • Residential heat exchanger limited warranty listed by manufacturer
  • Confirm exact model, serial number, fuel type, venting, controls, connected equipment and installation documentation before quoting parts or replacement.
  • Model or series: AquaBalance Boiler Series 2
  • Equipment type: Boiler
  • Product group: Hydronic heating
  • System role: Hydronic heating equipment for hot-water heating systems
  • Application: Residential or commercial hydronic heating applications when model capacity is appropriate
  • Compatibility check: Verify fuel type, venting, electrical requirements, capacity, controls, and installation clearances.
  • Verified source: weil-mclain.com

Useful troubleshooting details

  • Confirm the exact AquaBalance Boilers model number, serial number, capacity, voltage, refrigerant or fuel type, controls, and matched equipment.
  • Share current symptoms, alerts or error codes, recent maintenance, access notes, and whether the issue is urgent or planned.
  • For replacement planning, note comfort goals, existing equipment age, and any heat-pump, electrification, or rebate-related questions.

Service planning

How GreenFlow handles AquaBalance Boiler Series 2 requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Our Happy Customers

Murali S.

HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

Dev W.

I had a breakdown of my cooling system and Hanna at Green Flow responded to my request right away. They scheduled me same day. The team at Green Flow was easy to communicate with over phone and text. They kept me updated on delays on arrival of the...

Anna F.

They showed up within an hour of me making the call on a Sunday. They fixed our system and taught us how to replace the fuse in the future. We would definitely call again.

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