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 Tec](/sites/default/files/eco_tec_header_v2.jpg)
![ECO Tec](/sites/default/files/eco_tec_header_mobile.jpg)
![ECO Tec](/sites/default/files/eco-tec-logo-v2.png)
- 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](/sites/default/files/eco_tec_screen-v2%402x.png)
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](/sites/default/files/house_1%402x.jpg)
![ECO Tec Color Screen](/sites/default/files/colorscreen_v3%402x.jpg)
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.
![brochure](/sites/default/files/brochure_2021_mockup.png)
See the product brochure
Get more details about how ECO Tec makes life easy on contractors and homeowners.
Go nowSee which rebates and tax credits the high-efficiency ECO Tec is eligible for in your area.
See rebates and creditsHave questions about the ECO Tec boiler?
Fill out the form below and someone from our sales team will be in touch.
Tested and/or certified to the industry’s highest standards
![Department of Energy](/sites/default/files/350px-Seal_of_the_United_States_Department_of_Energy.png)
Department of Energy
![ENERGY STAR](/sites/default/files/Energy_Star_logo.png)
ENERGY STAR
![AHRI – Air-Conditioning, Heating, & Refrigeration Institute](/sites/default/files/ahri-logo-color-ns-1.png)
AHRI
Air-Conditioning, Heating, & Refrigeration Institute
![ASME – American Society of Mechanical Engineers](/sites/default/files/asme_logo_large.png)
ASME
American Society of Mechanical Engineers
![Department of Energy](/sites/default/files/csa-grouplogo.png)
CSA
Canadian Standards Association
![Department of Energy](/sites/default/files/UL_Mark.png)
UL
Underwriters Laboratories
![ANSI – American National Standards Institute](/sites/default/files/ANSI_logo.png)
ANSI
American National Standards Institute
![Intertek](/sites/default/files/Intertek.png)
Intertek
![NFPA – National Fire Protection Association](/sites/default/files/1200px-NFPA_logo.png)
NFPA
National Fire Protection Association
![SCAQMD – South Coast Air Quality Management District](/sites/default/files/AQMD_logo.png)
SCAQMD
South Coast Air Quality Management District