$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

Guide to Replacing Your Furnace

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Guide to Replacing Your Furnace

Posted On: November 24, 2024

Guide to Replacing Your Furnace

Replacing your furnace is a significant investment in your home’s comfort and efficiency. Here’s a step-by-step guide to help you navigate the process:



1. Recognize When It’s Time for a New Furnace

  • Age of the Furnace: Most furnaces last 15–20 years. If yours is nearing this range, it may be time to upgrade.
  • Increasing Repairs: Frequent breakdowns or costly repairs signal it's more economical to replace than repair.
  • Higher Energy Bills: Older units are less efficient and may cause spikes in utility costs.
  • Inconsistent Heating: Uneven temperatures or cold spots in your home indicate reduced performance.

2. Choose the Right Furnace for Your Needs

  • Fuel Type: Common options include natural gas, propane, oil, or electric. Choose based on availability and cost in your area.
  • Efficiency Ratings: Look for high Annual Fuel Utilization Efficiency (AFUE) ratings. Modern units often achieve 90–98% efficiency.
  • Size Matters: A furnace that’s too large or too small will be inefficient. Consult an HVAC professional to determine the correct size for your home.

3. Plan Your Budget

  • Furnace Costs: Basic models range from $1,500 to $3,500, while high-efficiency models may cost $4,000 or more.
  • Installation Fees: Expect to pay $1,500–$2,500 for professional installation.
  • Rebates and Incentives: Check for local or federal tax credits for energy-efficient units.

4. Schedule a Professional Assessment

An HVAC contractor can evaluate your home’s heating needs, inspect ductwork, and recommend the best furnace options.


Questions to Ask:


  • How long will installation take?
  • Is the current ductwork compatible with the new system?
  • Are there maintenance or service plans available?

5. Prepare for Installation

  • Clear the Area: Ensure the space around the old furnace is accessible.
  • Plan for Downtime: Installation can take a day or more, depending on complexity.
  • Discuss Post-Installation Care: Understand the maintenance requirements of your new furnace.

6. Maintain Your Furnace

To extend the life of your new furnace:


  • Change filters every 1–3 months.
  • Schedule annual professional tune-ups.
  • Keep vents and registers clean and unobstructed.

Replacing your furnace not only improves your home’s comfort but also enhances energy efficiency and reduces long-term heating costs. Always consult trusted professionals and prioritize energy-efficient options for the best results.



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See What Our Customers Are Saying:

by Private User on Twintech Heating and Cooling

It was a refreshing experience interacting with the Twintech team. From Bob, the sales consultant, who articulated in layman's terms all the options available and reasons for making any selection. This was done without the prevailing pressure tactics so commonplace today.

Before proceeding Mitch, the technician, at our request conducted a service check on our 30 yr old furnace. His report was positive indicating no urgency to replace it. Again no pressure tactics.

Three days after first meeting with Bob, the installation team of Greg and
Spencer completed the installation within the planned time frame.

A very professional, courteous and transparent team which delivered on their promise. I highly recommend Twintech.

by Private User on Twintech Heating and Cooling

Initial contact with sales resulted in an immediate response, which led to a timely installation. Both sales and installers were all very professional. I have no hesitation in recommending TWINTECH.

by Private User on Twintech Heating and Cooling

I had a great experience with TwinTech. The company offered a reasonable quote, and performed a quick and clean installation. The installer Greg was experienced, professional and courteous. He explained the services he performed and gave recommendations on maintain the new furnace.

The salesman Bob was honest
and professional and educated me on how to achieve optimal performance.

All communication from them was quick and they came the following day. I was pleased with the service and would recommend them.

by Lousan, Ajax on Twintech Heating and Cooling

From quote, to installation, to follow up, Twintech provided excellent service. I would highly recommended their services.

by John, Pickering on Twintech Heating and Cooling

I had a really great experience with these guys. The salesman Bob was clearly very knowledgeable about everything to do with heating and cooling a home, spent a lot of time with us going over the details of the job, never rushed us and came back after the install to make sure we were happy. The installation crew was excellent, they covered the floors all the way from outside down to the basement furnace room, kept the place clean, got the work done on time and we’re very friendly. I’ve got 15 years in the contracting/ construction industry and these guys are one of the most professional company’s I’ve dealt with. Great company!

by Debra Robertson on Twintech Heating and Cooling

Had great service and clean-up was good. Was happy with my salesman. They were very friendly and helpful. I needed a new furnace as our was over 20 years old. The furnace and air-conditioner work great and they are very quiet. I am very pleased with the service and product I received.

by Private User on Twintech Heating and Cooling

Met with Dave for the sales process and he was great about explaining and going over everything to us. The install happened very quickly and the team were super professional and friendly. We are very happy with this company and their services and we definitely recommend them to others. Thankful my sister recommended them to me!

by Private User on Twintech Heating and Cooling

Reviews for Twintech were good, and they did not disappoint. After an initial visit to discuss the suitable AC unit for replacement, an installation date was available in just a couple of days, and everything was installed without a hitch. Highly recommended

by Private User on Twintech Heating and Cooling

Very pleased with the installation of our new furnace and A/C unit. From quotation stage to the completion of the job Twintech was very professional.
Thank you for a job well done.

by Darren, Pickering on Twintech Heating and Cooling

My old water heater quit on me. I called TwinTech. In less than 4 days, I had my new water heater installed and the old one taken away. The whole process was quick, easy, pleasant, and well done. This is the third time I've dealt with TwinTech and I've been satisfied each time.

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See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

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