Mechanical Mentor

Stoves, venting, and home systems explained

Stove And Flue Venting

Class A Chimney Pipe: Identification and Planning

Learn how to identify Class A chimney pipe, distinguish it from stovepipe and B vent, and verify listing, clearance, supports, and termination.

By Gus Halloran · Sep 29, 2026

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Gas Fireplace Venting

Cost of a Gas Fireplace Insert and Installation

Plan a 2026 gas insert budget covering the appliance, listed venting, gas and electrical work, permits, chimney repairs and finish work.

Gas Fireplace Venting

Cost of a Gas Fireplace Insert Installed: 2026 Budget Guide

Budget a gas fireplace insert by appliance, venting, gas and electrical work, permits, chimney condition, accessories and finish work.

Chimney Components And Installation

Rumford Fireplace: Design, Code and Conversion Checks

See how Rumford fireplace geometry, code exceptions, draft, materials and chimney condition determine whether a build or conversion will work.

Gas Fireplace Venting

See-Through Fireplace Planning Guide

Plan a see-through fireplace by fuel, listing, vent route, clearances, heat management, service access and what lies on each side.

Wood Stove Heating And Firewood

EPA-Certified Wood-Burning Stoves: How to Verify and Choose One

Verify an EPA-certified wood stove by its permanent label and database record, then check sizing, safety listing, chimney requirements and local rules.

Wood Stove Heating And Firewood

EPA-Certified Wood Stoves: Verify the Label

Learn to check a wood stove’s permanent label, exact EPA database record, matching manual, installation requirements, and current incentive status.

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Chimney Components And Installation

Chimney Flashing Sealant: What to Use for Each Joint

Match chimney flashing sealant to masonry, metal, asphalt shingles or a storm collar, and see when failed flashing needs rebuilding instead of caulk.

Chimney Components And Installation

Cost to Replace a Fireplace Insert: Budget by Fuel Type

Estimate fireplace insert replacement cost by fuel, venting, removal, utilities and chimney condition—and compare complete quotes accurately.

Stove And Flue Venting

B Vent Pipe: Uses, Clearance, Slope and Roof Height

Check B vent pipe compatibility, 1-inch clearance, 1/4-inch-per-foot slope, roof height, routing and termination limits before work begins.

Stove And Flue Venting

Concentric Vent Kit: How to Choose the Right System

Match a concentric vent kit by checking manual approval, system type, diameters, vent length, termination requirements and included parts.

Gas Fireplace Operation And Safety

Gas Fireplace Inspection: Scope, Timing, and Stop Signs

Learn what a gas fireplace inspection should cover, when to stop using the unit, and why dedicated appliance service goes beyond a home inspection.

Chimney Components And Installation

Vent Cap: Identify the Vent Before Choosing a Replacement

Identify a vent cap by appliance, pipe system, size and termination type before replacing it. Learn what to inspect and when to stop using the appliance.

Chimney Cleaning And Maintenance

Chimney Cleaning Tools: Build the Right Kit for the Flue

Choose chimney cleaning tools by flue material, dimensions, deposits and access—and know when damage, glaze or roof risk makes DIY unsafe.

Stove And Flue Venting

What Does a Blocked Vent Look Like?

See what blocked combustion, HVAC and dryer vents look like, which operating clues matter, and when to stop checking and call for urgent help.

Chimney Components And Installation

Chimney Chase Cover: How to Measure and Specify One

Identify chase-cover damage and specify the metal, drainage, skirt and penetrations without violating the chimney system’s listing.

Chimney Components And Installation

Chimney Damper: Types, Safe Operation and Common Problems

Learn how throat, top-sealing and stove dampers differ, when a damper must stay open, and what to check when it sticks, leaks or causes smoke.

Chimney Cleaning And Maintenance

Chimney Mortar Repair: Repoint or Call a Professional?

Identify exterior, firebox, flue or crown damage; choose compatible mortar; and know when chimney repointing is unsafe or insufficient.

Chimney Components And Installation

High-Wind Chimney Cap: When It May Stop Downdraft

Gust-specific smoke makes outlet turbulence plausible, not certain. Compare cap designs, then verify the appliance, flue and chimney-system listing.

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