Mechanical Mentor

Stoves, venting, and home systems explained

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All 116 articles from Mechanical Mentor, newest first.

2026

Gas Fireplace Operation And Safety Fake Fireplace Logs: Materials, Uses and Replacement Checks Learn what artificial fireplace logs are made of, how gas and electric versions work, and why replacement logs must match the appliance. Gas Fireplace Venting Vent-Free Gas Firebox: Listing, Log-Set Fit and Installation A vent-free gas firebox is an enclosure, not necessarily a complete heater. Check its listing, compatible log set, dimensions and installation requirements. Stove And Flue Venting Gas Heating Stoves: Types, Fuel Costs and Heating Fit Compare freestanding gas heating stoves by vent type, natural gas or propane costs, heating range and controls before planning an installation. Stove And Flue Venting DuraVent Stove Pipe: DVL vs. DuraBlack and Chimney Adapters Compare DuraVent DVL and DuraBlack stovepipe, check their clearances, and identify the right connection to DuraPlus or DuraTech chimney. HVAC System Identification And Basics Electric Fireplaces: Types, Heat and Buying Checks Compare electric fireplace types, check power and clearances, estimate running cost, and choose useful controls before committing to a model. HVAC System Identification And Basics Furnace Vent: Identify the Exhaust and Air Intake Distinguish furnace exhaust, combustion-air intake and room registers. Learn how gas, oil and electric furnaces differ before changing venting. Chimney Components And Installation Copper Chimney Caps: Benefits, Patina and Buying Checks Compare copper chimney caps with stainless steel, understand patina and runoff risks, and check construction before paying for the upgrade. HVAC System Identification And Basics Flue Gas: What It Contains and Why Its Properties Matter Understand what flue gas contains, how heat and moisture affect it, and why clear exhaust does not prove a heating appliance is safe. Gas Fireplace Operation And Safety Gas Log Sets: Types, Fit and How to Choose Compare vented and vent-free gas log sets, distinguish them from inserts, and check fireplace approval, fuel, dimensions and controls before buying. Gas Fireplace Operation And Safety Direct Vent Propane Fireplace: Selection and Ownership Guide Choose a direct vent propane fireplace by LP approval, room heat needs, tank capacity and outage operation. Estimate fuel use and compare complete quotes. HVAC System Identification And Basics Electric Fireplace Insert With Blower: Controls, Noise and Checks Check integrated blower controls, flame-only operation, noise and service access—and know when a fan symptom needs cleaning or professional repair. HVAC System Identification And Basics Best Electric Fireplace Insert: Three Picks by Project Compare Modern Flames Redstone, Dimplex Revillusion and Napoleon Woodland by installation, flame design and electrical requirements. Wood Stove Heating And Firewood Vermont Castings Wood Burner: Models and Ownership Checks Compare Vermont Castings wood-stove models, top loading and combustion controls, then check chimney fit, maintenance and used-stove condition. Stove And Flue Venting Direct Vent Propane Heater: Check Fuel, Wall Fit and Power Choose a direct vent propane heater by fuel approval, wall thickness, vent clearances, heating capacity and outage operation—not BTU input alone. Stove And Flue Venting Stovepipe for Wood Stoves: Choose the Right Connector Choose stovepipe for a wood stove by diameter, single- or double-wall clearance, chimney transition and cleaning access—not just appearance. Gas Fireplace Venting Direct Vent Fireplace Venting: Check Pipe, Route and Clearances Plan direct vent fireplace venting by model, approved pipe, vent geometry and termination clearances. Know what to check before enclosing the installation. Gas Leak And Carbon Monoxide Safety Ventless Propane Heater: Check Air, Fuel and Room Approval A ventless propane heater still needs combustion air. Check local approval, room restrictions, fuel supply, clearances and CO protection before buying. HVAC System Identification And Basics Portable Electric Fireplace: Check Placement, Power and Heat Choose a portable electric fireplace by safe placement, outlet capacity, realistic heat output and handling—not flame effects alone. Stove And Flue Venting Propane Stoves for Home Heating: Fuel, Venting and Fit Check propane stove fuel approval, venting, clearances, heating range and outage operation before buying a freestanding home heater. HVAC System Identification And Basics Fireplace Blower: Compatibility and Troubleshooting Learn what a fireplace blower does, how to verify a compatible kit, and which checks to make before replacing a fan that will not run. Chimney Components And Installation Chimney Cover: Identify the Part Before Buying Identify a chimney cap, chase cover or crown, then check vent compatibility, leak location and measurements before ordering a replacement. Chimney Components And Installation Chimney Cap Replacement: Check Fit, Mesh and System Compatibility Choose a replacement chimney cap by vent system, mounting dimensions, mesh and condition. Know when cleaning, chimney repairs or professional access come first. HVAC System Identification And Basics Corner Electric Fireplace: Check Fit, Power and Heat Check corner dimensions, heater clearances, outlet capacity and realistic heat output before choosing a freestanding or built-in electric fireplace. Wood Stove Heating And Firewood Fan for Log Burners: Choosing and Positioning a Stove Fan Learn what a heat-powered log-burner fan does, how to check temperature compatibility, where to place it, and what to do if it stops spinning. Wood Stove Heating And Firewood Log Burning Fans: What They Do and How to Choose One Learn what heat-powered log burner fans can do, how to check temperature and placement, and when an appliance-approved blower is the better choice. Chimney Components And Installation Electric Chimney Insert: Check Fit, Power and Fireplace Condition Check fireplace dimensions, clearances, electrical supply and chimney condition before choosing an electric insert—and set realistic heat expectations. HVAC System Identification And Basics Electric Fireplace Insert: Check Fit, Power and Heat Check fireplace dimensions, electrical supply, airflow and realistic heat output before buying an electric fireplace insert. Stove And Flue Venting Fireplace Stove Pipes: Choose the Right Venting System Identify the right fireplace or stove pipe by fuel, appliance and vent route. Check connector limits, clearances, sizing and replacement compatibility. Gas Leak And Carbon Monoxide Safety White Gas: What It Is and Where It Can Be Used Safely Identify white gas, check stove compatibility, and understand why camp fuel belongs outside—not in a fireplace, home heater, or indoor emergency stove. Wood Stove Heating And Firewood Wood Stove With Blower: What It Does and How to Choose Learn what a wood-stove blower does, when it helps, how to verify an approved kit, and what to check if the fan will not start. Wood Stove Heating And Firewood Wood Burning Cook Stove: Check Fit, Venting and Cooking Controls Check a wood burning cook stove’s approval, clearances, hearth, chimney and oven controls before choosing a model for your kitchen or cabin. Wood Stove Heating And Firewood Potbelly Stove: Fuel, Clearances and Chimney Checks Learn how to check a potbelly stove’s fuel, listing, clearances and chimney, and why antique looks or a new reproduction do not establish safe installation. Wood Stove Heating And Firewood Modern Wood Burning Stove: Choose by Fit, Heat and Controls Look beyond contemporary styling: check a modern wood stove’s clearances, chimney, heat ratings, combustion controls and maintenance before buying. Wood Stove Heating And Firewood Small Combustion Stove: Check Heat Output and Installed Space Choose a small combustion stove by its approval, clearances, hearth, flue and usable heat output—not just its body size or advertised heating area. Wood Stove Heating And Firewood Small Wood Burning Stove: Choose by Heat and Installed Footprint Choose a small wood burning stove by clearances, chimney requirements, usable heat output and log size—not just its outside dimensions. Wood Stove Heating And Firewood Cast Iron Stove: What to Check Before Buying or Using One Check a cast iron stove’s construction, used-stove defects, hearth requirements and chimney compatibility before buying it or lighting your first fire. Stove And Flue Venting Installation of a Log Burner: A Planning Checklist Plan a log burner installation by checking the exact stove, chimney route, clearances, hearth, air supply and approval before comparing quotes. Chimney Components And Installation Chimney Flue: What It Is and What to Check Before Use Learn how a chimney flue differs from its liner and damper, what appliance compatibility requires, and which warning signs call for professional inspection. Wood Stove Heating And Firewood High-Efficiency Wood-Burning Stove: Compare the Right Ratings Compare wood-stove HHV efficiency, usable heat output and combustion types—then check chimney compatibility, clearances and firewood moisture. Wood Stove Heating And Firewood Wood Burner and Fireplace: Choose the Right Setup Compare an open fireplace, wood-burning insert and freestanding stove, then check fireplace compatibility, flue requirements and clearances. Wood Stove Heating And Firewood Wood Combustion Fireplace: Identify the Type Before You Buy Compare open fireplaces, enclosed wood heaters and inserts, then check chimney compatibility, clearances, heat ratings and safe burning practices. HVAC System Identification And Basics Electric Fireplace Versus Gas: Heat, Installation and Cost Compare electric and gas fireplaces by venting, electrical supply, usable heat, running cost, safety and power-outage operation. Gas Fireplace Operation And Safety Fireplace Heat Shield: Choose by Appliance and Clearance Match a fireplace heat shield to your appliance, mantel depth and clearance rules. See when a hood, ventilated wall shield or heat-management kit fits. 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. 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. 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. Gas Fireplace Operation And Safety Skytech Fireplace Remote Not Working? Troubleshooting Steps If your Skytech fireplace remote is not working and no gas odor is present, replace the batteries in both the handheld transmitter and receiver, record the… Chimney Components And Installation Firebrick Fireplace: Choosing Brick, Size & Mortar Identify the fireplace assembly first; then measure the existing brick, verify the required refractory standard and lining thickness, and use compatible mortar. Chimney Components And Installation Planning an Outdoor Brick Fireplace Compare site-built masonry with modular systems, verify codes and materials, and budget the foundation, freight, permits, labor and finishes. Chimney Components And Installation Chimney Insert: How to Check Fireplace Compatibility Use the worksheet to measure the opening, hearth and clearances, then verify chimney condition, model-specific venting and local approval. Wood Stove Heating And Firewood How to Choose Firebrick for a Wood-Burning Stove Use the stove label, current manual, and parts diagram to match the approved part number, material, dimensions, shape, quantity, and firebox position. Chimney Components And Installation Fixing Fireplace Mortar: Repointing Steps Covers when a small joint is DIY-safe, how to verify location-approved mortar, prepare and fill the joint, and complete product-specific curing. Chimney Components And Installation Stacked Stone Veneer Fireplace: Plan & Install Verify fireplace clearances and compatibility, estimate stone, prepare the approved substrate, dry-lay panels, and support stone above the opening. Chimney Components And Installation Refractory Mortar: How to Choose the Right Product Match the assembly, substrate, exposure and repair type using manufacturer technical data, safety information and application instructions. Chimney Components And Installation Clay Chimney Flue Liner: How to Choose a Size Compare nominal, inside and outside dimensions with verified effective flue area, appliance requirements, chimney geometry and locally adopted code. Chimney Components And Installation Abandoned Masonry Chimney: Seal, Repair, or Remove? Use a five-option comparison based on verified use, masonry condition, water exposure, structure, energy goals, space needs and reversibility. Chimney Components And Installation Brick Hearth Planning: Design, Materials & Safety Before choosing color or pattern, identify the exact appliance, verify its requirements, assess structural support and confirm each product’s intended use. Stove And Flue Venting Installing a Wood-Burning Fireplace Insert Safely Use decision gates to verify fireplace compatibility, chimney condition, liner design, permits, commissioning, and inspection before use. Water Heater Troubleshooting And Temperature Tankless Water Heater Troubleshooting Steps Check hazards first, isolate one outlet versus the whole home, record codes, test external causes, and learn which warning signs mean stop. Chimney Components And Installation Chimney Liner Kit: How to Choose the Right System Match appliance and fuel requirements to diameter, material, insulation and finished dimensions, then compare kit contents and total project cost. Chimney Cleaning And Maintenance Cracked Chimney: Causes, Warning Signs and Repairs Crack location, leaning, loose masonry, water and venting symptoms help determine urgency—and whether patching, repointing or rebuilding fits. Chimney Components And Installation How to Close a Chimney Flue: Safe Steps Wait until flames, embers, and hot coals are gone, identify the damper control, move it without force, then verify the plate is closed. HVAC System Identification And Basics Do I Need a Condensing Furnace Before the 2028 Ban? The 2028 furnace phase-out is back in court. Learn when an 80% replacement remains viable and how to compare it with a 95% condensing quote. HVAC System Identification And Basics Heat Pump vs Gas Furnace Without a Tax Credit Compare heat-pump and gas-furnace costs after the federal credit, including installation scope, local utility rates, cold-weather output, and backup heat. Chimney Components And Installation How to Update a Brick Fireplace by Surface Type Preserve and clean sound brick, or choose a recoloring finish that matches the substrate and location, then test it before committing. Water Heater Troubleshooting And Temperature Is My Vornado Heater Recalled? Check the TYPE Label Use the bottom rating label to identify an SRTH, understand the June 2026 fire recall, and follow Vornado’s direct refund process without guessing. Stove And Flue Venting How to Install a Woodburner Stove: A Safety-First Guide Installing a woodburner is not simply a matter of placing an appliance on a stone slab and attaching a pipe. The stove, hearth, connector, chimney, combustion-… Chimney Components And Installation Masonry Chimney: Parts, Safety, Maintenance & Repairs A masonry chimney is easy to mistake for a simple stack of brick. In reality, it is three systems occupying the same space: Wood Stove Heating And Firewood Fire Brick: Types, Sizes, Uses, Costs & Buying Guide Fire brick should be selected by the work it performs—not simply by the highest temperature printed on a listing. A stove lining, fireplace firebox, pizza-oven… Water Heater Troubleshooting And Temperature Can You Buy a Gas Water Heater in the Bay Area in 2027? The Bay Area may delay its small water-heater zero-NOx rule to 2028. Check what could apply in 2027, including emergency and panel exemptions. Gas Leak And Carbon Monoxide Safety Is Your Plug-In CO Detector on the CPSC Warning List? Check model KH158 against 18 displayed brands, identify the affected plug-in CO detector, and verify UL 2034 or ETL replacement markings. Wood Stove Heating And Firewood Should You Prebuy Heating Oil for Winter 2026? Compare prebuy, cap, market, and budget heating-oil plans for winter 2026–2027 using local quotes, breakevens, fees, forecasts, and contract risks. Chimney Cleaning And Maintenance Brushes for Chimney Cleaning: Size, Material & Rod Guide The best brushes for chimney cleaning are not defined by brand, price, or maximum stiffness. The right choice is a compatible brush-and-rod system selected for… Chimney Components And Installation Masonry Fireplace: Types, Costs, Planning & Maintenance A masonry fireplace can become an integral part of a home’s architecture, but the term is often used loosely. A hand-built brick firebox, a precast concrete… Wood Stove Heating And Firewood How Much Is 1 4 Cord of Firewood? Size, Price & Dimensions If you are asking how much is 1/4 cord of firewood, there are two answers: Water Heater Troubleshooting And Temperature How to Replace a Thermocouple Safely: Step-by-Step Guide A pilot that lights but goes out when you release the control is often blamed on the thermocouple. That is a reasonable possibility, not a complete diagnosis.… Water Heater Troubleshooting And Temperature When a Gas Water Heater Works Without Electricity A naturally vented, standing-pilot tank with mechanical controls can generally keep heating. Warm tap water alone may be the tank's stored reserve. Wood Stove Heating And Firewood A Rick of Wood Is a Stack With Variable Depth A customary stack is 4 feet high and 8 feet long. Volume ranges from 32 cubic feet at 12 inches deep to 64 cubic feet at 24 inches. HVAC System Identification And Basics York Serial Number Pattern Determines How to Decode Age Common York formats use different character positions, so applying the wrong rule can produce a plausible but incorrect result. Gas Leak And Carbon Monoxide Safety Sealed vs Open Burners: Cleanup and Performance Sealed burners generally keep routine messes on the cooktop. Some open models let round-bottom woks sit closer to the flame, but performance varies by model. Wood Stove Heating And Firewood How Much Is 1/2 Cord of Firewood? Size and Cost Drivers The 64-cubic-foot figure describes the space occupied by compactly stacked firewood, including the normal gaps between irregular pieces. HVAC System Identification And Basics Gas Heat Without Electricity: Heater Design Decides A modern ducted furnace generally stops in an outage, but some fireplaces can use batteries to run their burners. The exact model decides which case applies. Water Heater Troubleshooting And Temperature 3 Meanings of a Typical Hot Water Heater Temperature A factory preset is not a universal standard, and a thermostat label does not prove that water reaches every faucet at precisely that temperature. Stove And Flue Venting A Stainless Flue Liner Must Match the Whole System Material, size, construction, insulation, fittings, support and termination must match the particular appliance, masonry chimney and jurisdiction. Gas Fireplace Venting Gas Fireplace Chimney Needs Vary by Vent Type Vent-free appliances may be prohibited, restricted, or subject to room and installation conditions depending on the jurisdiction and appliance category. Gas Fireplace Operation And Safety How to Operate a Gas Fireplace by Control Type Match operation to the model: waiting periods, pilot-hold times, approved ignition methods, power-outage behavior and shutdown procedures all vary. Gas Leak And Carbon Monoxide Safety Soapy Water Gas Leak Test: Only for Routine Checks No bubbles means only that no leak was detected on surfaces fully coated, directly visible and observed under the test conditions. Chimney Components And Installation How to Install a Chimney Cap by Mounting Type A no-drill design still needs correct fit and positive attachment. Match the flue dimensions and approved mounting surface, then verify an open exhaust path. Wood Stove Heating And Firewood Wood Stove Heat Exchangers Vary by Heating Setup One user reported heavy creosote above a reclaimer after five months and enough blockage to interfere with startup. Compare risks across exchanger types. Gas Leak And Carbon Monoxide Safety CO Detector vs. Smoke Detector: What Each Senses A smoke-only alarm cannot detect carbon monoxide. Shape, location, display and test sound do not establish CO capability. The hazard label does. Chimney Components And Installation What Are the Parts of a Chimney? Masonry, factory-built and Class A systems do not contain the same parts. In masonry, the flue is the passage and the liner its interior covering. Gas Fireplace Venting Gas Fireplace Venting Depends on Its Design Most exhaust outdoors; only listed vent-free models do not. A vented unit with a missing or disconnected flue is not vent-free. Gas Fireplace Operation And Safety How to Ignite a Gas Fireplace: Identify Its Controls Stop if you smell gas. Otherwise, locate the appliance instructions and follow the procedure for that exact model. Chimney Cleaning And Maintenance Cost to Clean a Chimney: Flue Count, Buildup and Access $150–$400 is a practical starting budget for a routine sweep. Inspection scope, pricing unit and add-ons show whether two quotes cover the same work. Gas Leak And Carbon Monoxide Safety Propane Leak Signs vs. Exposure Symptoms Headache, dizziness and nausea can occur, but they also overlap with carbon monoxide. Odor, hissing and frost are separate warning signs. Leave first. HVAC System Identification And Basics What Should You Eat With Braces the First Week? For fixed braces, choose oatmeal, eggs, yogurt or smooth soup. Soreness often peaks around days 2-3; add soft pasta, soft rice or flaky fish as comfort returns. HVAC System Identification And Basics What Are the Basic Concepts of Thermodynamics? Equilibrium analysis links the system boundary, state and process to heat, work and mass. It balances energy and tests direction, not how quickly change occurs. Chimney Cleaning And Maintenance Fireplace Soot Is Not Always a Cleaning Job Sticky or glazed residue, deposits outside the firebox, rapid recurrence and gas-appliance buildup call for assessment or material-specific service. Stove And Flue Venting Pellet Stove Pipe Needs the Right Type, Size and Route Most manuals allow a straight-out horizontal run, but it can backpuff smoke during a mid-burn power outage. A vertical section is cheap insurance. Water Heater Troubleshooting And Temperature Why Is My Water Not Getting Hot? Causes by Symptom One cold or lukewarm faucet calls for fixture or local plumbing evaluation. If every tap is affected, use the symptom and heater type to choose safe checks.