Mechanical Mentor

Stoves, venting, and home systems explained

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.

By Gus Halloran · Aug 31, 2026

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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…

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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.

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