D30 Timberfire Gas Insert
Overview
Mendota's gas fireplace inserts instantly enhance the beauty and functionality of your existing wood burning fireplace. Available in two sizes, both gas fireplace insert models feature sealed combustion, direct vent technology that keeps warm air in and cold air out, assuring high air quality, maximum efficiency and trouble-free operation in today's tight homes.
Quick Specs
- BTUs: Up to 29,000 Input
Natural Gas
| BTU | 19,900 - 30,000 Input |
|---|---|
| Width | 30-1/2 in. |
| Height | 19 in. |
| Depth | 16-1/2 in. |
| Weight | 150 lbs. |
Liquid Propane
| BTU | 16,200 - 29,000 Input |
|---|---|
| Width | 30-1/2 in. |
| Height | 19 in. |
| Depth | 16-1/2 in. |
| Weight | 150 lbs. |
Minimum Fireplace Opening
| Width | 30-1/2 in. |
|---|---|
| Height | 19 in. |
| Depth | 16-1/2 in. |
Hearth Blog Posts
Wood-Burning vs. Gas Fireplace: Total Cost of Ownership in Idaho
Most people compare wood and gas fireplaces by sticker price and stop there — but the purchase price is only part of the story. The real question is total cost of ownership: what you'll spend over the years to buy, fuel, and maintain it, plus the value of things that never show up on a receipt, like ambiance and heat during a power outage. This guide breaks down the true 10-year cost of each in Idaho using real local numbers — the cheapest natural gas in the country (~$0.50/therm) and affordable firewood (~$200/cord) — across upfront, fuel, and maintenance. Spoiler: gas usually wins on cost, but wood wins on the intangibles. Here's how to decide which is right for your home.
Idaho Fireplace Permit & Code Guide: What's Required Where
Adding a fireplace or wood stove in Idaho? What's required depends on where you live and what you install. This guide covers gas vs. solid-fuel permits, EPA certification, clearances, chimney code, and Idaho's air-quality rules — by jurisdiction.
Fireplace Insert vs. New Fireplace: Which Makes Sense for Your Home
If you want a better fireplace, you have two fundamentally different paths: drop an insert into an existing fireplace, or install a brand-new unit. They sound similar, but they solve different problems, cost different amounts, and suit different homes — and the right choice usually comes down to one question: do you already have a usable fireplace opening? This guide breaks down both options across cost, efficiency, placement, and installation, with clear "choose this if" guidance. You'll learn why both crush an open masonry hearth on efficiency (10–20% vs. 70–90%), when an insert is the smart, cost-effective upgrade, and when a new built-in fireplace's placement freedom is worth the extra investment.




