Thursday, July 18, 2024

Keystoker HF 70/90 Coal Insert

Keystoker HF 70/90 Coal Insert

The Keystoker HF 70/90 coal insert is a durable insert with beautiful styling and great features to output lots of heat for smaller homes or large living spaces.  With a large glass bay window front door that has an air tight design, optimum heat control and great ambiance are guaranteed.  This automatic coal insert burns pea, nut, or stove coal for an efficient and long lasting wave of heat (up to 48 hours on a full load).

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The Keystoker HF 70/90 is a coal insert that you can use to replace an old, inefficient fireplace in exchange for a more efficient alternative, while still maintaining the beautiful ambiance provided by an open fire.

This coal burning stove comes built here in the U.S.A. with sturdy materials, resulting in a product Keystoker is so confident about they are willing to back it with a 5-year limited warranty. This beautiful coal insert collects all ashes in the ash pan for easy disposal. An air tight design of the firebox allows for optimum heat control and increased efficiency in heating your home. And on a full load of coal, this insert can burn for up to 48 hours continually, giving you a constant source of heat without the need to babysit and refuel the fire every few hours.  A large glass viewing door allows you to gaze upon the flickering flames of the fire as your entire room is bathed in the soft orange glow emanating from the flames.

Available in two burn sizes, 70,000 and 90,000 BTUs you can select the perfect efficient coal fired insert for your home.



  • Tested to ANSI / UL 1482 Standards.
  • Heavy Duty Alligator Shaker Grates
  • Optional Blower Motor
  • Large Glass Viewing Door
  • Can Burn Up To 48 Hours
  • Thermostatic Draft Control
  • Air Tight Design for Optimum Heat Control
  • 5 Year Limited Warranty
  • External Shaker System
  • A Lasting Investment
  • Ash Pan Collects All Ashes - 2 Ash Pans come standard


Specifications Keystoker Coal Fireplace Insert 70 Keystoker Coal Fireplace Insert 90
BTU's 70,000 90,000
Flue Exit Top Top
Flue Size 6" 6"
Rear Flue Height 23 1/2" 23 1/2"
Height I* 23 1/2" O* 32" I* 23 1/2" O* 32"
Width I* 21" O* 46" I* 21" O* 46"
Depth I* 13" O* 7" I* 16" O* 8"
Weight 400 425
Glass Door Yes Yes
Blower and Rheostat Included 220 CFM 220 CFM
Rear Clearance -- --
Side Clearance 16" 16"

*I Dimensions of stove inside hearth    *O Dimension of stove outside hearth

Keystoker HF 70/90 Coal Insert

Keystoker HF 70/90 Coal Insert

Please call or email us today for a shipping quote.  Specify the model you are interested in and your zip code.

All above prices include blower and fan speed rheostat.

Freight cost is additional. Please call (406) 300-1776 or email for a complete price quote.  Please specify the model you are interested in and your delivery zip code.

Obadiah's offer's a 20% discount and free shipping on most complete chimney systems. Email our chimney specialists for an exact quote.


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