Thursday, May 28, 2020

Hearthstone 8890 Maidstone - Not Available*

Hearthstone 8890 Gas Insert with Cast Iron Facade

No Longer Available from Obadiah's.


The Hearthstone Maidstone 8890 DVI-HT cast iron gas insert emits heat efficiently to a smaller home or large area.  With the additional great features built into this cast iron gas insert, this reliable insert will keep you warm for many winters to come.  Thanks to advanced ignition technology provided by Hearthstone, this gas burning insert can continue to provide heat when you need it most: when the power goes out in a harsh winter storm.

  • Description
  • Specifications
  • Photos (9)
  • Pricing
  • Extended Info
  • Add Review

*PRODUCT NOT AVAILABLE - this page is for informational purposes only.

The Hearthstone 8890 DVI-HT Maidstone is a gas insert with a cast iron facade designed to keep a smaller home or very large space (up to 1,500 square feet) warm throughout any winter. With an array of features that increase efficiency and reliably, you can count on this gas insert to deliver heat for many years.

Hearthstone 8890 DVI HT Gas Insert Maidstone Cast Iron Facade

This efficient gas heater utilizes a certified room heater to let less heat escape up the chimney, and direct the warmth where it belongs instead: your home. Thanks to the Millivolt ignition system, you can enjoy the heat from this gas burning cast iron insert at any time, even when the power goes out. A wall thermostat is included with this gas insert, so that you can keep your home or a large area at a comfortable temperature. Additionally, a two-speeed blower is included with this unit as well, which makes sure that the heat produced from this sleek gas insert is distributed more evenly in your home.

All of these features combine into a highly capable, and very dependable cast iron insert. With a variety of color finishes available to you, the perfect Hearthstone gas burning insert can be customized to complement any decor.


Certified room heater
Increased stove efficiency; less heat lost up the chimney results in more usable heat for less money.

Millivolt ignition system
Stove can operate without electricity; excellent source of heat during power outages.

Wall thermostat
Thermostat turns stove on and off; maintains the home at preset comfort level; desired heat is maintained automatically. Optional programmable thermostat is also available.

Two-speed blower
Heated air is moved throughout the home for more uniform temperature. Thermostat monitors stove body temperatures and automatically turns the fan on or off. You set the speed of the fan.

Three-way on/off thermostat switch
Allows you to flip the stove on for instantaneous fire or to control the stove from the wall thermostat or to turn it off.

Adjustable heat output
All the pleasures of fire viewing ambiance, even when little room heat is desired.

Remote controls (optional)
Simple "on/off" remote control and thermostatic remote control allow the fire to be controlled from across the room. Temperature is controlled by the thermostat located within the remote itself.

Firebox screen kit (optional)
Enhances flame and reduces hearth requirement. The door glass "disappears" from viewing, leaving only the dancing flames and glowing logs.


Color Finishes

Black Matte

Brown Enamel

Blue-Black Enamel


Stone Finishes:

Gray Soapstone

Autumn Brown



Hearthstone DVI HT 8890 Gas Insert Schematic


Hearthstone DVI HT 8890 Gas Insert Clearances

Hearthstone DVI HT 8890 Gas Insert Clearances

Specifications Hearthstone Maidstone 8890 Gas Insert
Heats Up To Up to 1,500 sq. ft.
Burn Rate Range 20,000 - 33,000 BTUs/hr
Steady State Efficiency 75-87%
EnerGuide Rating 68%
Width 27-3/4"
Height 19-3/4"
Depth 16"
Flue Diameter Two 3" co-linear
Flue Exit Top Exit
Available for NG or LP Yes
Surround Size (Large) 32-3/8"H x 49-1/4"W
Surround Size (Small) 26-5/8"H x 42-5/8"W
Optional Blower Kit Included
Remote Control Compatible Yes
Built-In Three-way "On-Off-Thermostat" Switch Included
Wall Thermostat and Thermostat Wire Included
Actual Weight (lbs.) 185
Mobile Home Certified Yes
Programmable Thermostat Compatible Yes
Minimum fireplace opening
Width 28-1/2"
Height 20"
Depth 16-1/2"

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

Hearthstone 8890 Gas Insert with Cast Iron Facade

This unit not available for purchase.

A large freight truck (18-wheeler up to 60' long) is standard on all deliveries. If you need a smaller truck, please call our office (406) 300-1776 to request a smaller truck size. Note: an upcharge may apply for small trucks.

Please inquire with our sales staff if you have specific shipping needs such as international, freight terminal and/or business deliveries or if you need a smaller truck size. Click here to see Obadiah's Shipping Terms.

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

Be sure to check out our newly improved Cookstove Community website; the best place online to connect with other cookstove users over stoves, self-sufficient living, alternative energy, and more! Take a look at our selection of videos, articles, and photos, and be sure to visit the forums to connect with like-minded folks from all over.

If you are planning to cook with a cookstove, you will need to understand some basic fire safety. Remember, extinguishing a grease or oil fire with water is not a good idea.

For help choosing and installing a wood boiler, see the links and posts below.

  • Installations

  • Heat Area (sq.ft.)
    Fireplace Specific Options





    Cooktop Material

    Water Heating Options

    Flue Orientation


    Venting (Gas Stoves)


    Viewing Area

    Interior Style