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Heating, Cooling, Air Quality & Water Heating Systems

Krooswyk Plumbing, Heating, and Air Conditioningstarstarstarstarstar4.5 / 5

415 Total Reviews /files//Krooswyk_logo.jpg219-987-3865$213 7th St SW, DEMOTTE IN

ES2 Chimney Vented Cast Iron Boiler

The cast iron heat exchanger is the heart of these boilers. It is manufactured in Zanesville' Ohio and is designed for years of reliable service. Each heat exchanger is water and pressure tested prior to assembly. The boilers themselves are built in Lancaster' PA. Every component used in the IQ family of boilers is subject to strict standards of quality control and performance verification which are used throughout the manufacturing process.

  • 85% AFUE
  • Electronic Ignition
  • Easy' intelligent IQ Control System™
  • Outdoor reset available – increases efficiency by 15-20%
  • Reliable' American-made cast iron heat exchanger accepts return water as low as 110°F
  • IQ Control System Combines aquastat' relay' and ignition functions into a single module
  • IQ Option Panel Enables the easy plug & play installation of optional features such as outdoor reset' LWCO' and high limit
  • Optional Touchscreen LCD displays all boiler settings' diagnostics' and troubleshooting in sentences' not codes
MODELInput MBtuHOutput MBtuHAFUEDimensions
Water Content
ES2-370.0 59.0 85.0 41x12.75x33 2.00 254
ES2-4105.0 89.0 85.0 41x15.5x33 3.00 301
ES2-5140.0 119.0 85.0 41x18.5x33 4.00 353
ES2-6175.0 149.0 85.0 41x21.5x33 5.00 405
ES2-7210.0 178.0 85.0 41x24.75x33 6.00 464
ES2-8245.0 208.0 85.0 41x27.75x33 7.00 514
ES2-9280.0 238.0 85.0 41x30.75x33 8.00 564

Warranty Information

  • All Parts for 12 months -
  • Heat Exchanger - Limited Lifetime

Available Documents