Question 1

How long does furnace installation take?

Accepted Answer

Most furnace replacements are completed in four to six hours. If ductwork modifications or new gas line work is needed, it may take a full day.

Question 2

What's the best furnace efficiency rating?

Accepted Answer

For WNC's climate, a 96% AFUE or higher gas furnace is an excellent investment. The efficiency upgrade typically pays back within 5–7 years through fuel savings.

Question 3

Should I replace the AC at the same time as my furnace?

Accepted Answer

Often yes. If your AC is also aging, replacing both at the same time saves on labor, ensures equipment compatibility, and may qualify you for better bundle pricing and warranties.

Question 4

Can an oversized furnace cause short cycling?

Accepted Answer

Yes — an oversized furnace heats your home too quickly, satisfying the thermostat before completing a proper heating cycle, then shuts off and restarts repeatedly. This is a design problem from improper sizing at installation. The fix is either adjusting the blower speed and gas pressure to de-rate the unit, or in severe cases, replacing it with a properly sized furnace based on a Manual J load calculation.

Question 5

What is AFUE and why does it matter?

Accepted Answer

AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a furnace converts fuel to heat. A 96% AFUE furnace turns 96 cents of every dollar of gas into heat, with only 4 cents lost up the flue. Older furnaces run at 78–82% AFUE, while modern high-efficiency units hit 95–98%. In Asheville's cold winters, upgrading from an 80% to a 96% AFUE furnace can save $300–$500 per year on gas bills.

Question 6

What is a high-efficiency furnace?

Accepted Answer

A high-efficiency furnace has an AFUE rating of 90% or above and uses a secondary heat exchanger to extract additional heat from combustion gases before they're vented. These units are identifiable by their PVC vent pipes (instead of metal flues) because the exhaust is cool enough for plastic. They cost more upfront but pay for the difference through lower gas bills within 5–7 years in our climate.

Question 7

Is a high-efficiency furnace worth the extra cost?

Accepted Answer

In Western North Carolina, absolutely. Our heating season runs roughly October through April, so you're running the furnace for 6+ months a year. The savings from a 96% AFUE unit over an 80% unit add up to $3,000–$5,000 over the furnace's lifetime. High-efficiency models also qualify for utility rebates and federal tax credits, which offset the higher upfront investment.

Question 8

What size furnace do I need for my home?

Accepted Answer

Furnace size depends on your home's square footage, insulation levels, window area, ceiling height, and local climate — not just square footage alone. In Asheville's climate zone 4A, most homes need 35–50 BTUs per square foot. A 2,000 sq ft home typically needs a 70,000–100,000 BTU furnace. We perform a Manual J load calculation for every installation to determine the exact right size — oversizing causes short cycling and comfort problems, undersizing means the house never gets warm enough.

Question 9

What happens if my furnace is too big for my house?

Accepted Answer

An oversized furnace heats the space too quickly, causing it to short-cycle — turning on and off frequently without completing full heating cycles. This creates uneven temperatures, excess humidity, higher energy bills, and accelerated wear on components. It's one of the most common installation mistakes in the industry, which is why we insist on a Manual J calculation before recommending any equipment.

Question 10

How much does a new furnace cost in Asheville?

Accepted Answer

A new gas furnace installed in Asheville typically costs $3,500–$7,500 depending on efficiency, capacity, and brand. A basic 80% AFUE unit starts around $3,500 installed, while a top-tier 96–98% AFUE variable-speed furnace with a premium brand runs $5,500–$7,500. These prices include the furnace, installation labor, thermostat, permits, and our workmanship warranty. Financing options are available.

Furnace Installation

Professional Furnace Installation in Asheville & Western NC

Why Choose Us

Frequently Asked Questions About Furnace Installation

Related Services

Furnace Repair

Furnace Replacement

Heating System Installation

Helpful Guides

Central Air Conditioner Guide

How Long Do AC Units Last?

SEER Rating Explained

What Size AC Unit Do I Need?