Weil-McLain Ultra Series 3
Model Number: UL3
Weil-McLain flagship condensing boiler with 95% AFUE efficiency and modulating technology for maximum comfort.
Technical Specifications
*Prices include equipment, installation, and standard warranty. Actual cost may vary.
Estimated Annual Savings
Compared to an 80% efficient boiler
$221
per year
$4420
over 20 years
Ideal For
Modern hot water systems in energy-conscious homes
Expert Review: Weil-McLain Ultra Series 3
The Weil-McLain Ultra Series 3 is our top-selling condensing boiler for Long Island hot water systems. At 95% AFUE, it captures heat that older cast iron boilers send up the chimney, reducing annual heating costs by 20-30% compared to standard-efficiency models.
Why Nassau County Contractors Choose the Ultra 3
The Ultra Series 3 features a stainless steel fire tube heat exchanger that resists thermal stress and corrosion. Unlike some competitors, the heat exchanger is field-serviceable—cleaning and inspection don't require unit replacement. The modulating burner adjusts from 20% to 100% capacity, eliminating the short-cycling that wastes fuel in oversized systems.
Best Applications
The Ultra 3 excels in multi-zone hot water systems with 3-6 thermostats. Common installations include Levittown split-levels, Massapequa ranches, and Garden City Colonials with baseboard or radiant floor heating. Output ranges from 50,000 to 299,000 BTU depending on model, covering homes from 1,500 to 4,000 square feet.
PSEG Long Island Rebates
At 95% AFUE, the Ultra Series 3 qualifies for PSEG rebates up to $750. We handle all rebate paperwork as part of our installation service. Combined with annual fuel savings, most homeowners recoup the efficiency premium within 4-5 years.
Installation Notes for Long Island
The Ultra 3 requires PVC or CPVC venting—no masonry chimney needed. This simplifies installation in homes where the old chimney is deteriorating. Direct vent through a sidewall is common in Hicksville and Bethpage basements. The unit requires a condensate neutralizer to protect your drain lines from acidic condensate.
Key Features & Technology
Stainless steel heat exchanger
Modulating burner technology
Built-in outdoor reset
Ultra-quiet operation under 45 dB
ENERGY STAR certified
Advantages
- 95% AFUE qualifies for PSEG rebates up to $750
- Modulating burner prevents short-cycling
- Stainless steel heat exchanger with 12-year warranty
- Field-serviceable components reduce repair costs
- PVC venting eliminates masonry chimney requirements
- Quiet operation under 45 dB
Considerations
- Higher upfront cost than cast iron alternatives
- Requires annual maintenance for optimal performance
- Condensate neutralizer adds to installation cost
Warranty & Protection
Parts Warranty
5 years
Heat Exchanger
15 years
Our Guarantee
100% Satisfaction
All Weil-McLain boiler installations by Home+ Air & Heat include our 1-year workmanship warranty, covering labor and any installation-related issues.
Frequently Asked Questions
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