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Product Code: TJ-1050325

The Classic Edge 960 HDX is EPA Step 2 Certified.
  • Overall Efficiency (LHV) - 92.1%**
  • Overall Efficiency (HHV) - 85.6%**
  • Approximate load power depending on wood quality** – 2,555,484 btu
  • Manufacturer's Rated Heat Output Capacity** - 400,000 Btu/hr
  • Heat Output (8 hr)** - 319,435 Btu/hr
  • Heat Output (12 hr)** - 212,957 Btu/hr
  • Firebox Volume - 32 cu ft
  • Firebox Dimensions - 42.75"L x 43.5"H x 31.5"W
  • Door - 22.75"W x 28.75"H
  • Ash Cleanout Door - 20"W x 11"H
  • Water Capacity - 420 gal.
  • Empty Weight - 2,714 lbs
  • Supply/Return Ports - 1 set of 1-1/4" supply and return ports, 2 sets of 3/4" supply and return ports
  • Integrated Wi-Fi Connectivity - Standard

Measurements and Foundation Dimensions - Illustration
Included with outdoor furnace - Water Test Kit, Cleaning Rod, Scraper Tool, and Ground Rod Kit

* Price varies according to options: chimneys and delivery are not included.

** Efficiencies are determined under the same test conditions using higher heating value, lower heating value and overall efficiency. **Based on EPA qualifying test.

NOTE: Specifications are subject to change without notice.


Classic Edge Titanium HDX outdoor wood furnaces are the most efficient outdoor wood furnaces that meet the stringent EPA Step 2 Certified requirements. They use up to 60% less wood and are cleaner-burning, easy to operate and require minimal maintenance (usually only a few minutes a week).

The titanium-enhanced stainless steel firebox ensures zero corrosion inside the firebox and is designed to last a lifetime. With features like Reserve Mode and the Burning Time Monitor, you can burn any kind of firewood. Thousands of families rely on their Central Boiler furnace to provide warmth, safety and comfort while eliminating their high heating bill and giving them a better quality of life.

Cruise Control for the Furnace

STAY CONNECTED! More than just a controller, the FireStar® Combustion Controller features built-in wireless connectivity, giving you the ability to communicate with the furnace without additional equipment or cumbersome ethernet cables.

The FireStar® combustion "cruise" controller takes all the worry and guesswork out of wood heating. It constantly throttles the air to find the optimal burn for any kind of firewood, meaning you can "load it and forget it" FireStar® constantly monitors how the wood is burning and adds air where and when it’s needed for the cleanest, most efficient combustion. You can even see how it’s operating in real time on your smartphone or set up notifications so you’ll know when it’s time to add wood.

More features you’ll only find with FireStar®:

  • Reserve Mode - reserves a portion of the previous wood load so you'll never have to relight a fire
  • Burning Time Monitor - helps to estimate how much wood is lef
  • Clean Reload - Can eliminate smoke when you open the firebox door to add wood
  • Text Alerts - if you want, be notified when it’s time to add wood

Watch a live demo at MyFireStar.com/demo


The Titanium-Enhanced stainless steel firebox ensures zero corrosion inside the firebox and can last a lifetime. With features like Reserve Mode and the Burning Time Monitor, burn any kind of firewood.


Use up to 60% less wood compared to other methods of wood heating and deliver more heat to your home. All Central Boiler furnaces are engineered to minimize heat loss, from the construction of the firebox door, panels and pump access area to the airtight, waterproof spray-on urethane foam insulation. The larger firebox allows for longer burn times, saving you even more time.

Classic Edge HDX models are EPA-certified clean-burning and are among the most efficient, best ways available to burn wood.

VIDEO - Enhanced Classic Edge Titanium HDX

Engineered to the Highest Standards... Those of Central Boiler

Classic Edge HDX Cutaway

Air Charge Tube

Innovative Design

The Classic Edge’s patented Air Charge Tube directs oxygen into the Fusion Combustor and keeps coals from falling into the Reaction Chamber. Oxygen mixes with the combustion gases and is focused down into the Afterburner. The Air Charge Tube also helps the furnace to relight faster.

After Burner Reaction Chamber



Super-heated gases enter the round chamber of the Afterburner and swirl in a turbulent vortex, creating a Fireball and allowing enough time for complete combustion to occur.

Air Intake with Stepper Motors

Clean and Efficient

Air control is imperative for the cleanest, most efficient burn. When the fire needs a lot of air (such as during startup or when burning higher moisture wood), FireStar instructs the stepper motors to open the air regulating discs precisely to deliver the amount of air needed. Stepper motors use less power than other air control methods and never need adjustment or replacement due to wear.

Patented Easy View Vertical Heat Exchanger

Easy Access

An industry exclusive, the patented vertical Easy View® Heat Exchanger with hinged door provides full access without the use of tools. That makes for quick inspections and easy cleaning from outside the firebox while standing on the ground.


Better Heat Extraction

Turbulators in the heat exchanger cause turbulence of the exhaust gas flow through the heat exchanger. This forces the heated exhaust to better contact the heat exchanger and transfer more of its energy to the surrounding water jacket before exiting out the chimney.

Stainless Stell Air Delivery Tube

Preheated air and stainless steel primary air intake tubes that are easy to disassemble for cleaning are what make the Classic Edge so popular.

Brochure Classic Edge

Measurements and Foundation Dimensions

Installation and Initial Water Treatment Guide

Maintenance Manual Classic Edge (960) Titanium HDX

How FireStar Controller Version 6.8 Works

Quick Start Guide (HDX)

How to Connect Wifi Internet