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What is the Difference Between 1 and 2 Stage Furnaces?
Posted On: February 11, 2024
1-stage and 2-stage furnaces refer to the number of heat output levels the furnace has and how it operates to regulate indoor temperature.
Here's the difference between them:
1-Stage Furnaces: These furnaces have only one level of heat output, which is typically high.
When the thermostat calls for heat, the furnace fires up at full capacity until the desired temperature is reached, then it shuts off.
They operate in an all-or-nothing manner, meaning they are either on at full blast or completely off.
This can lead to temperature fluctuations and less precise control over indoor comfort.
1-stage furnaces are generally less expensive upfront compared to 2-stage furnaces but may result in higher energy bills due to frequent cycling on and off.
2-Stage Furnaces: These furnaces have two levels of heat output: high and low.
When the thermostat calls for heat, the furnace first activates at a lower capacity (low stage) to maintain a steady temperature.
If additional heat is needed to reach the desired temperature, it switches to the higher capacity (high stage).
They provide more precise temperature control and reduce temperature swings because they can operate at a lower output level for longer periods, maintaining a more consistent indoor temperature.
2-stage furnaces are typically more energy-efficient than 1-stage furnaces because they can run at a lower capacity for longer periods, consuming less energy overall.
Although 2-stage furnaces are usually more expensive upfront compared to 1-stage furnaces, they can potentially save money on energy bills over time.
In summary, the primary difference lies in the number of heat output levels and how they regulate indoor temperature, impacting comfort, energy efficiency, and upfront cost.
Contact Twintech today at 1-844-894-6832
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See What Our Customers Are Saying:
Apr 10, 2019
Had new furnace installed and ran into some difficulties but the contractor responded in a timely and efficient manner - after further service calls were made, a reasonable resolution was found.
Apr 8, 2019
The work was done quickly efficiently neatly and professionally. Pleased with the service, information, product, and the company.
Apr 1, 2019
Great sales member named Dave came in told us some amazing items and how they would be priced installed an all. We couldnt believe it! The next day the ac was installed, that day one employee named Greg told us that our furnace was working way to hard and was causing us to use way too much gas. So two days later they came in an installed a new furnace!
Apr 1, 2019
Installation was done quickly and professionally. The new furnace is quiet and provides even heat.
Mar 3, 2019
They removed and discarded old furnace. Installed new furnace. Installed air intake pipe, that had never been installed by builder, no charge. Replaced loose hose on floor with hard pipe and rerouted it to drain, no charge. Almost 33% cheaper then quote from Enercare, which was the company we dealt with and had insurance with for 8 years. No yearly fee for cleaning/insurance, saves 300 a year. Courteous, professional, fast, and friendly. My wife and I have been recommending them to everyone we know and meet, and will continue to do so. Thanks for everything, Twintech!!!
Mar 4, 2019
This company was great to deal with. Our furnace went down and they installed a new furnace the next day with a lot of professionalism!
Feb 22, 2019
Finally! An honest company with highly knowledgeable and informative staff. Had a furnace service and found multiply errors in our system from an amateur installer. Very fair price to correct problems and will definitely use again.
Feb 16, 2019
Had to replace the heating & a/c unit in a condo apartment dwelling. this company recommended by the property manager and president of the condo building. found their workmanship and attention to details very good and very thorough. were able to resolve small problems and situations and happy to feel the heat in my unit. it's pricey, but happy was done by a very professional service. thank you.
Feb 13, 2019
Fantastic team. Completed the job as per the specifications and in under 3 hours. Highly recommended Twintech.
Jan 30, 2019
During the summer, I previously hired TwinTech to replace my air conditioner when it failed. They did an excellent job so when I decided to proactively replace the furnace I contacted them. The furnace I had was 22 years old and showed signs of internal leakage. It still worked but rather than wait to have it fail in cold weather, I decided to purchase a higher efficiency model before it failed and take advantage of energy efficiency rebates. TwinTech offered very useful advice on the make and model of furnace to choose including high efficiency and variable speed motor. The price was reasonable, TwinTech arrived at the allotted time, installed the new furnace (including some re-routing of exhaust lines since the existing ones were too close to other vents), removed the old furnace, tested the installation and cleaned everything up. Overall, it was a good experience, they did a great job and the new furnace is working well.
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