Verified Estimate answers a few fit questions so the price uses the exact vent kit and install add-ons your space needs. The most accurate number.
Quick Estimate uses the simplest vent kit and a baseline install. A fast starting number, no questions.
Visualizer shows this unit rendered in a photo of your own room before you decide.
Product Configuration
Set the unit up the way you'd order it—then price it installed or see it in your own room, right on this page.
This one is priced in person. Schedule your free in-home visit, and our team measures, confirms every install detail, and writes your estimate on the spot.
Basic Product Info
Approx. Heating Area
1,100-2,200
Fan Kit
Included Up to 20 inches
More Product Info
Our large flush insert combines stylish cast iron with our signature soapstone lining. Enameled cast iron The flush cast iron front of the GMI 90 is available in matte black or our brown enamel finish. Soapstone firebox Burn up to 20 inch logs in the soapstone lined firebox. Soapstone retains the maximum heat from you fire and radiates steady warmth as your insert burns. Simple operation Our non-catalytic wood insert is easy to use. A single lever air control lets you burn hot and fast or low and slow to keep warm through the night.
Manuals & Spec Sheets
Documentation for this model is available in the showroom.
Common Product Questions
Can I get an instant online estimate for the Hearthstone GMi 90 in northern Utah?
Yes. Timber Ridge Fireplace & Design prices the Hearthstone GMi 90 right here on this page. The estimate covers the unit, the venting it needs, and installation by our own crew, and it takes about a minute. There is no obligation and no phone call required.
What does the estimate include—just the fireplace?
Everything it takes to get it running: the Hearthstone GMi 90 itself, the venting it needs, and turnkey installation by our own NFI-certified crew. One number for the whole project.
Is the online price real, or just a rough guess?
It’s a real, configured estimate from our live catalog, not a vague range. Choose your options above and the number reflects that exact build. Final pricing is confirmed at your free in-home visit.
Do you install and service the Hearthstone GMi 90 yourselves?
Yes. Timber Ridge has installed and serviced fireplaces across northern Utah since 2019 on a Utah general contractor license. Our own crew handles the whole job, and we service what we sell.
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Count on one team to handle the whole project—from the first visit to the final walkthrough. Get an instant estimate online, or see how a new fireplace will look in your own room.