Gallant Wall

The Gallant Heat Only Wall has the capability to modulate with a turndown ratio of up to 5.5:1. This modulation means the boiler will alter its firing rate to meet the current demand, causing less cyclic behavior and resulting in lower operating costs. The improved CTRMax Control System makes configuration quick and easy with setup in 60 seconds or less for standard installations. For unique installations, the 4 circulator outputs are fully configurable for endless customization.

Warranty WARRANTY

The Ideal Advantage Industry Leading Warranty Program | Standard – 2-year parts and 10-year primary heat exchanger warranty. | Plus – 5-year parts, 2-year labor allowance, and 10-year primary heat exchanger warranty with registration. | Elite – 6-year parts, 3-years labor and 12-year heat exchanger warranty offered with registration, combustion analysis and hydronic system treatment. See warranty for details.

  • Best Warranty
  • Best Warranty
  • Best Warranty
DETAILS

  • AFUE Energy Efficiency:

    Rating Of 95%

  • Turndown Ratios Up To 5.5:1

  • Ideal Advantage Industry-Leading Three Point (Standard / Plus / Elite) Warranty Program

  • Fully Modulating

  • ASME Certified

  • Energy Star Listed

  • Two Reset Curves / Set Points

  • Integrated Cascade Function For Up To 6 Boilers

  • Quiet Operation

Accessories Accessories

  • EXRKIT122

    Wi-Fi Module 1.0 + Bracket

  • MDRKIT05

    System Temperature Sensor for Cascade (Immersion)

  • GACAB01

    Cascade Connection (Multiple Boiler) Cable

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Model Comparison Model Comparison

Gallant Wall250299399

  • Model Number
  • IDGA250 (NG) / IDGA250LP (LP)
  • IDGA299 (NG) / IDGA299LP (LP)
  • IDGA399 (NG) / IDGA399LP (LP)

Performance Specs

  • Fuel
  • NG & LP
  • NG & LP
  • NG & LP
  • Input Modulation (MBH)
  • 53.6 to 240
  • 72.5 to 299
  • 72.5 to 399
  • AHRI Net Rating (MBH)
  • 192
  • 242
  • 330
  • DOE Heating Capacity (MBH)
  • 222
  • 278
  • 379
  • AFUE
  • 95%
  • 95%
  • 95.1% **
  • Water Volume (Gallons)
  • 4.5
  • 7.4
  • 7.4
  • Turndown Ratio
  • 5.5:1
  • 4.1:1
  • 5.5:1

Technical Data

  • Weight (lbs.)
  • 140
  • 210
  • 216
  • Dimensions (W x H x D)
  • 19 3/4" x 36 9/16" x 17 5/16"
  • 24 7/8" x 39 3/8" x 23 5/8"
  • 24 7/8" x 39 3/8" x 23 5/8"
  • Vent / Air Diameter
  • 3"
  • 4"
  • 4"
  • Gas Connections
  • 3/4"
  • 1"
  • 1"
  • Supply / Return Connections
  • 1 1/4"
  • 1 1/2"
  • 1 1/2"

*Domestic Performance based on average water temperature of 108°F at mixing valve outlet and 50°F inlet

**Thermal efficiency

Documents Documents

Product / Marketing Literature

Installation / User Manuals

  • Gallant Wall - Installation & Maintenance Manual
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  • Gallant Wall - User's Information Manual
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  • Gallant Wall - Gallant 250 Natural Gas to Propane Conversion Instructions
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  • Gallant Wall - Gallant 250 Natural Gas to Propane Conversion Instructions French
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  • Gallant Wall - Gallant 299-399 Natural Gas to Propane Conversion Instructions
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  • Gallant Wall - Gallant 299-399 Natural Gas to Propane Conversion Instructions French
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Technical Supplements

Engineering Bulletins

Submittals

  • Gallant Wall - Engineering Submittal Gallant Solo 250
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  • Gallant Wall - Engineering Submittal Gallant Solo 299
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  • Gallant Wall - Engineering Submittal Gallant Solo 399
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Repair Manuals

Gallant Wall

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