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The next generation of Weil-McLain comfort is here

We’re excited to introduce the ECO® Tec high-efficiency gas boiler, featuring heat-first design, common parts and a powerful control. Years in the making, it’s built with homeowners and contractors in mind.

ECO TecECO Tec
  • Heat-only sizes: 80, 110, 150, 199 MBH
  • Combi sizes: 110, 150, 199 MBH
  • Up to 5.4 gallons/minute
  • Wall mount or floor standing options
  • Stainless steel firetube heat exchanger design
ECO Tec

Total control

The Unity 2.0 touchscreen is a powerful multi-zone controller with easy-to-use features, including:

  • Setup Wizard, a step-by-step installation guide
  • Text based — no codes to decipher
  • Built-in zone control to operate up to four circulators without need of an external control
  • Large touchscreen color display makes system monitoring and navigation simple
  • Automatic maintenance reminders and contractor-contact screens
  • Ten system presets

Comfort where you want it.
Hot water when you need it.

With an impressive 95% AFUE rating, ECO Tec has earned the ENERGY STAR® Most Efficient recognition, helping homeowners save on energy costs every heating season. Even greater savings can be realized all year long with the combi unit for both space and domestic hot water heating. Plus, there are several modes to choose from to make maximizing energy savings and/or comfort easier.

ECO Tec House
ECO Tec Color Screen

High technology. Open design.

A spacious cabinet allows full access to all strategically positioned critical parts. ECO Tec’s durable, high-grade Stainless Steel firetube heat exchanger maximizes heat transfer and its vertical design promotes self rinsing during operation. Click below to watch a virtual cutaway.

High technology
brochure

See the product brochure

Get more details about how ECO Tec makes life easy on contractors and homeowners.

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See which rebates and tax credits the high-efficiency ECO Tec is eligible for in your area.

See rebates and credits

Have questions about the ECO Tec boiler?

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Tested and/or certified to the industry’s highest standards

Department of Energy

Department of Energy

ENERGY STAR

ENERGY STAR

AHRI – Air-Conditioning, Heating, & Refrigeration Institute

AHRI
Air-Conditioning, Heating, & Refrigeration Institute

ASME – American Society of Mechanical Engineers

ASME
American Society of Mechanical Engineers

Department of Energy

CSA
Canadian Standards Association

Department of Energy

UL
Underwriters Laboratories

ANSI – American National Standards Institute

ANSI
American National Standards Institute

Intertek

Intertek

NFPA – National Fire Protection Association

NFPA
National Fire Protection Association

SCAQMD – South Coast Air Quality Management District

SCAQMD
South Coast Air Quality Management District