Find Your Weil-McLain System
Compare equipment features. Bomar will confirm the size, matched components, and installation requirements for your home.
3 Models
AquaBalance Series 2 Boiler
Compact wall-mounted boiler family with heat-only and combi versions. Bomar will confirm the appropriate heating and hot-water configuration for your home.
- Model
- AquaBalance Series 2
- Efficiency
- Up to 95% AFUE
- Operation
- Gas-Fired Condensing Boiler
CGa Series 4 Gas Boiler
Cast-iron hot-water heating with natural-draft operation. Bomar will review your heating load, venting, fuel supply, and existing distribution system.
- Model
- CGa Series 4
- Efficiency
- 84% AFUE
- Operation
- Gas-Fired Water Boiler
ECO Tec Series 2 Boiler
Condensing gas boiler family with heat-only and combi configurations. Bomar will review heat demand, venting, piping, and domestic hot-water needs.
- Model
- ECO Tec Series 2
- Efficiency
- 95% AFUE
- Operation
- Gas-Fired Condensing Boiler
No published models match your selection. Try another filter or ask Bomar for help.
Efficiency depends on the exact model and matched system. Product-family names are not capacity ratings. Bomar will confirm current availability and suitability.
Compare Your Systems
Select up to three models.
Compare options with Bomar. A comparison does not establish equipment compatibility.
What Size System Does Your Home Need?
Your home’s heating and cooling needs depend on more than its square footage. Insulation, windows, ceiling height, air leakage, local weather, and ductwork all matter.
Air Conditioner Size
AC capacity is commonly expressed in tons. One ton equals 12,000 BTU/h of cooling capacity. SEER2 describes efficiency, not the size of the unit.
Furnace & Boiler Size
Heating capacity is expressed in BTU/h. Input and output ratings are different. AFUE describes annual fuel efficiency and does not replace the rated heating output. Boiler selection also depends on the hydronic or steam system.
Ductless & Home-Specific Sizing
A Manual J load calculation determines heating and cooling loads. Ductless systems need room-by-room loads and a verified indoor/outdoor match. Equipment selection also requires manufacturer performance data and a compatible system design.
Already Have A Professional Load Calculation?
Use the total cooling load from that calculation to understand the units. This conversion does not select a specific AC model or installation size.
Tell Bomar about your home in the request form below. We will review the information needed to confirm equipment sizing. Learn About Proper HVAC Sizing.
Request A System Recommendation
Choose a model or let us help you compare. Share a few home details and Bomar will follow up about equipment options, sizing, and installation.