EcoTec 199-H 199 Input MBtu 95% AFUE Natural Gas Condensing Heat Only Water Boiler Series 2

Weil‑McLain ECO Tec – 80–199 MBH Fire‑Tube Condensing Boiler (95% AFUE)

The ECO Tec is a high-performance fire‑tube boiler engineered for hydronic heating applications. It delivers efficiencies up to 95% AFUE and features a stainless-steel heat exchanger with five-pass primary tubing complemented by a condensing secondary section—delivering both reliability and energy savings .

⚙ Key Contractor Features Stainless-Steel Heat Exchanger Five-pass primary plus condensing secondary design enhances longevity and condensate resilience . Full Modulation & Intelligent Controls 10:1 turndown ratio with onboard color touchscreen controller, modulating gas valve, and diagnostics simplifies setup and optimization . Integrated Hydronics Factory-installed dual circulator strategy (system and bypass) supports low-return-temperature systems and outdoor reset integration out of the box . Compact & Service-Friendly Design Lightweight (~160–220 lb depending on size) with service panels, easy burner access, and plug-in wiring harness for rapid field maintenance . Flexible Venting Options Compatible with 3" PVC/CPVC/PP/SS for direct burn or exhaust venting; features built-in condensate trap and neutralizer port . ???? Technical Overview Specification Detail (ECO Tec 150) Heat Output (MBH) 150 Efficiency 95% AFUE Modulation Ratio 10:1 Heat Exchanger SS fire-tube primary / condensing secondary Controls Color touchscreen with diagnostics Circulators Dual internal (system + bypass included) Venting 3″ PVC/CPVC/PP/SS Connections Standard 1″ NPT ???? Installation & Service Notes Plug-and-Go Package: Shipped pre-assembled with primary circulator, ignition system, condensate handling, and junction boxes; install heatsource with minimal field prep . Service Access: Front panel opens for full access to burners and controls; pump cartridges and high-voltage wiring are removable via plug-in harness . Outdoor Reset Ready: Built-in bypass circs and control logic support temperature resets, ideal for zoning or radiant floor systems. Condensate Management: Integrated trap and neutralizer ensure code compliance and protect vent terminations. ???? Contractor Summary The ECO Tec represents Weil‑McLain’s top-tier offering in efficiency and modern hydronic control. It's designed for easy installs, low operational cost, minimal field plumbing, and reliable long-term performance. Ideal for contractors specifying top-shelf condensing boilers for residential or light-commercial jobs.