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Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376
Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376

Why the "M" Series? For maximum momentum. Using proven technology, these boilers are designed to keep your day going and your family happy.

Standard Features:

  • Onboard outdoor reset control system with sensor standard
  • Prebuilt plumbing kit with insulated Low Loss Header
  • Priority DHW standard
  • Built in DHW plate heat exchanger
  • Domestic hot water plate warming
  • Modulating Ceramic premix burner
  • 5:1 turn down ratio
  • Spark ignition
  • Exceeds SCAQMD 1146.2 Low NOx requirements
  • Stainless Steel Water tube condensing heat exchanger
  • Direct Vent sealed combustion
  • Concentric and twin pipe venting adapters included
  • Approved for room and closet installations
  • Max Input: 120,000 BTUh
  • Minimum Input: 23,500 BTUh
  • Turndown Ratio: 5.11.1
  • DHW Output: 4.2 GPM @ 70 Degrees F


FTC Energy Guide

Product Height
31.8 in / (808 mm)
Product Width
17.3 in / (440 mm)
Product Depth
10.46 in / (266 mm)
Product Weight
84 lb / (38 kg)
Shipping Depth (inches/mm)
12 in / (305 mm)
Shipping Height (inches/mm)
12 in / (305 mm)
Shipping Width (inches/mm)
23 in / (584 mm)
Shipping Weight (lbs/kg)
95 lb / (43 kg)

Blog posts

  • Why Snow Melt Mats are a Must-Have
    September 25, 2023

    Why Snow Melt Mats are a Must-Have

     Snow Ice Melting Mats is undoubtedly a wise investment. With minimal running costs, maximum safety measures, and remarkable durability, they offer an all-in-one package for an effortless winter experience.
    Read now
  • Get Frost-Proof!
    September 23, 2023

    Get Frost-Proof!

     Upgrading to a frost-free faucet alleviates the worry of winter-induced water damage and adds extra protection to your home’s water supply. It’s an investment that pays for itself in peace of mind and financial savings.
    Read now

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