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Aspen Insert (Discontinued)

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The Aspen Insert may have limited supply available through your local dealer but we are replacing it with new and more efficient models.  If you have a Apsen Insert, don't sweat, it is an amazing stove and we will provide service and support this product forever! Owner's Manual and Clearance Information can still be found under the "Additional Information" tab below.

The Aspen Insert is the perfect choice for improving the efficiency of your small fireplace.  At just over 18" tall, the Aspen will fit in most of the smallest fireplaces.  The Aspen is approved for installation into both masonry and factory built (zero-clearance) firepalces with the use of a 6" stainless steel flue liner.  The full double-wall construction of the Aspen maximizes heat to the room by trapping the heated air around the firebox and only letting it escape to the front, inside the home.  The adjustable depth surround panel eases the installation by adding flexibility, and the optional blower adds in more circulating power.

  • Wood Length: 16"
  • Firebox Size: 1.6 ft3
  • Burn Time: 8 hours
  • Cordwood BTU's: 40,000
  • Efficiency (HHV): 72%
  • Efficiency (LHV): 78%
  • Particulate Emissions: 4.2 g/hr
  • Heating Capacity: 1600 ft2
  • Flue Size: 6"
  • Width: 23"
  • Height: 18-1/8"
  • Depth: 20-3/4"
  • Weight: 350 lbs
  • Non-Catalytic Burn System
  • Meets Newest EPA Requirements
  • Washignton State Approved
  • Limited Lifetime Warranty
  • Approved for use in Manufactured Homes
  • Optional 90 cfm Blower
  • Outside Air Ready
  • Self-Cleaning Glass
  • Minimum fireplace dimensions:
    H:19" W:24" D:14"


Owner's Manual

Sample Listing Tag

Hearth Requirements

EPA Test Report

California Residents: See Prop 65 WARNING

2018-2020 Biomass Tax Credit Download


When purchasing direct from Kuma, consider hiring a certified chimney professional for the installation of your new stove, and be sure to check with your local building officials regarding the necessity for a proper permit and inspection. You can find properly trained installers at nficertified.org or csia.org.

Your satisfaction is always guaranteed.  Upon receiving your new Kuma Insert, if you're not completely satisfied with it's quality and appearance, we'll arrange for, and pay the return shipping.  When we receive the Insert back, we'll give you a 100% refund, including the original shipping cost.


The top features of every Kuma product are:  Quality, Warranty, and Service.  Kuma is proud to say that the products we manufacture are of the highest quality available.  And, our industry leading warranty is merely an extension of our commitment to quality, and the kind of warranty that should be expected with a first class product.  Finally, our great customer service is based on trust.  When you purchase a Kuma product, you trust it to perform as advertised, and you trust us to give you the customer service that you deserve. That's important to us, and we promise that our products and our service will deliver.


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