Day And Night Furnace Reviews – 2021 Round-up

| Last Updated: June 28, 2021

A good furnace can help keep your entire building heated and comfortable centrally. You can control many units through Wi-Fi, and many would save you energy as well. 

Others will keep not only your comfort in mind but also that of your environment. One such company that does so is Day and Night. 

In this article, we will be thoroughly examining many different models of furnaces by Day & Night.


Who is Day & Night?

Day And Night is a renowned brand whose core operations involve the manufacturing of furnaces in addition to other equipment. It’s owned by United Technologies. Over the years, they’ve continuously strived to build a reputation for value, and they’ve been very successful in achieving just that. 

Other equipment or product offerings by the company include air conditioners, heat pumps, ductless systems, fan coils, evaporator coils, geothermal, packed products, and thermostats. United Technologies, the parent company, owns both Day and Night Furnaces and Carrier (another leading brand of AC and heating). 

What Makes Day & Night Furnaces Stand Out From the Competition?

Day & Night Furnaces are owned by United Technologies, who also owns other leading furnace brands like Carrier, Bryant, and Payne. With over 50 years of experience providing optimal performance and durability on the matter of their products, we believe this is what makes them stand out from the competition.

The company is known for its innovative ideas and advanced technological integrations. The furnaces are extremely quiet, energy-efficient, and high performing while also being Energy Star qualified, so they are also environment and climate-friendly. 

Furthermore, all models manufactured by the company feature dual-fuel models specially designed to work during extremely cold temperatures. The company offers three different types of staged heating, including variable-capacity furnaces, two-stage gas furnaces, and single-stage gas furnaces

These furnaces corroborate extremely high efficiency, which can be verified from their 98% annual fuel utilization efficiency percentage. This essentially means that 98% of the fuel is effectively utilized in heating, while only 2% is wasted. 

They are also durable and known to last a lot longer, which can be seen by their bold warranties. The warranties offered by the company include a ten-year no-hassle replacement limited warranty, ten-year parts limited warranty, and lifetime heat exchanger limited warranty upon timely registration.

Lastly, the extremely diligent and responsive customer service seals the deal for this company. 

Review of the Best Day & Night Furnaces

Now that we’ve talked so highly of the company, let’s have a look at what they have to offer.

Best Overall

Day & Night G97CMN Ion 98 Gas Furnace


Energy Efficiency (AFUE): 98%

Parts Warranty: 10 Year(s)/Lifetime Heat Exchanger Limited Warranty

Unit Warranty: 10-Year No Hassle Replacement™ Limited Warranty

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What Recent Buyers Report

Most buyers seem quite happy with this gas furnace. It is not only great for the cold winters but also provides excellent dehumidification during the summers. The Ion System Control provides great connectivity with compatible air conditioners. Lastly, it is quite easy to install and service though maintenance would require expert intervention.

Why it Stands Out to Us

Day & Night G97CMN Ion 98 is one of the most efficient gas furnaces on the market. It boasts an impressive heating capacity of 60,000-120,000 BTUs. It is one of the quietest gas furnaces as well due to features such as the inducer motor, soft-mounted blower, and steel cabinets being insulated. 

You can rest assured of its durability and longevity, as it is quite tough. This is due to the primary RPJ® (Rigid Press Joint) heat exchanger and the secondary stainless-steel heat exchanger. With further features such as temperature control that prevents overheating, this is a safe and reliable option. 

Bottom Line

With an excellent efficiency rating of up to 98% AFUE, it is quite obvious how well this gas furnace operates. Furthermore, with the extensive warranties provided, you can rest assured that the company fully backs all their claims. This model is also Energy Star qualified, which means that not only will you be comfortable, but you’ll also be keeping the climate protected. With all this in mind, we don’t see how you could possibly go wrong with this one.


Extremely energy efficient

Built-in humidifier and air-purifier capabilities

Ion™ System Control± with Wifi-enabled remote access

Ten-year no-hassle replacement and parts limited warranty and lifetime heat exchanger limited warranty

Provides great manual temperature control and comfort due to the variety in variable-speed blower motor and modulating gas valve


Self-maintenance is quite difficult for this product


Day & Night G96CTN Ion 96 Gas Furnace


Energy Efficiency (AFUE): 96.70%

Parts Warranty: 10 Year(s)/Lifetime Heat Exchanger Limited Warranty

Unit Warranty: 10-Year No Hassle Replacement™ Limited Warranty

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What Recent Buyers Report

Buyers are very much pleased with this high-efficiency gas furnace, especially due to the two-stage gas valve and the fully variable-speed blower. They confirmed that installing this device did, in fact, provide better temperature control and, as a result, comfort. They also liked that they could use this for summer dehumidification. 

Why it Stands Out to Us

The Day and Night G96CTN is the hallmark of high-efficiency and comfort. The roots of this advanced comfort and effective temperature control can be traced back to its core technologies. These incorporate the variable speed blower motor as well as the two-stage gas valve. What’s more is the duel fuel compatibility mechanism that’s fit for both heat pumps and thermostats. This ensures an overall streamlined energy-saving heating system. 

Since this design is fabricated using a two-stage furnace, the unit operates on a low stage to save energy and shifts to higher settings as the temperature starts to drop. 

Bottom Line

This furnace features a fully insulated cabinet to help keep the heat moving through the ductwork and is also air purifier and humidifier-compatible. It also offers a ten-year no-hassle replacement limited warranty and ten-year parts limited warranty if you register on time. All in all, this furnace is perfect for keeping your home warm and cozy. 


Fully insulated cabinets

Ten-year limited warranty 

Compatible with an air purifier as well as a humidifier

Dual fuel mechanism to corroborate energy-saving heating performance

Incorporates a variable-speed blower motor and two-stage gas valve to ensure even temperature control and comfort


Maintenance expert is required for even the smallest discrepancies

Best for the Money

Day & Night N95ESN Performance 95 Gas Furnace


Energy Efficiency (AFUE): 96%

Parts Warranty: 10-Year Parts Limited Warranty / Limited Lifetime Warranty on the heat exchanger

Unit Warranty: N/A

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What Recent Buyers Report

Some buyers seem to love and prefer this particular model over others because of the 96% AFUE rating. This is because it, in turn, leads to higher efficiency and fuel utilization. They further report saying that the five-speed blower is immaculate in providing even levels of temperature control.

Why it Stands Out to Us

The reason buyers seem to love the Day and Night N95ESN is the same reason it stands out to us. The 96% AFUE rating, along with a single-stage burner, really sets this model apart. With a heating capacity of 26,000 to 140,000 BTUs, you can’t go wrong with this item.

Furthermore, an efficient multi-speed ECM blower motor has been embedded into the main design to substantially save energy and improve the overall performance. The unit also includes sound-reducing features that include the soft-mounted blower and inducer motor. Lastly, the furnace also exhibits an induced draft combustion motor and a reliable direct spark ignition. 

Bottom Line

The specifications of the N95ESN really knock the ball out of the park. The induced draft combustion motor and reliable direct spark ignition deserve an honorable mention. Needless to say, this is a great investment if you want to plow your money into a reliable gas furnace. 


Excellent energy-saving performance

Lifetime heat exchanger limited warranty

Offers up to 96% AFUE rating for increased efficiency as compared to other models

Incorporates a fixed-speed blower to ensure even temperature control and comfort

Features a high-temperature limit control mechanism to prevent overheating issues


Single-stage operation as compared to two-stage found in other models

Day & Night G96VTN QuietComfort 96 Gas Furnace



Energy Efficiency (AFUE): 96%

Parts Warranty: 10 Year(s)/Limited Lifetime Warranty on the heat exchanger

Unit Warranty: N/A

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What Recent Buyers Report

Most recent buyers seem to be quite pleased with this model. The performance and efficiency of this furnace at the price range are excellent. It provides great control and comfort to you while being as quiet as possible. Like other Day & Night furnaces, users report this furnace being just as user-friendly due to the easy installation and service.

Why it Stands Out to Us

Day & Night G96VTN QuietComfort 96 is one of the highest-performing and efficient gas furnaces at the price point it’s at. It features sound-dampening features such as an inducer motor and a soft mounted blower to make it quieter. It is quite solid and durable and comes with insulated steel cabinets. It further constitutes a primary RPJ® (Rigid Press Joint) and a secondary stainless steel heat exchanger to further make it tougher. 

It has an amazing heating capacity of around 60,000-120,000 BTUs. And with the direct spark gas ignition, reliability and consistency are guaranteed all year round. Furthermore, both the ECM blower motor and the induced draft combustion motor have variable speed. This aids in giving you more manual temperature control for your preferred comfort.

Bottom Line

There is little the Day & Night G96VTN QuietComfort 96 can’t do. The efficiency rating for this gas furnace is up to 96.0% AFUE. And with an excellent warranty program, you know that everything claimed is backed. Furthermore, it is Energy Star qualified, which means it takes into account the protection of the climate and not just your comfort. All in all, we don’t see any reason why this wouldn’t provide the comfort you are looking for


Steel cabinets are fully insulated

Built-in humidifier and air-purifier capabilities  

Excellent heating performance and energy efficiency 

Due to the modulating gas valve and variable-speed blower motor, you get great temperature control and comfort

Lifetime heat exchanger limited warranty, ten-year parts limited warranty, and five-year no-hassle replacement limited warranty


Does not include Ion System Control and Wi-Fi enabled remote access

Day & Night N95ESU Performance 95 Ultra-Low Nox Gas Furnace



Energy Efficiency (AFUE): 96%

Parts Warranty: 10 Year(s)/Lifetime Heat Exchanger Limited Warranty

Unit Warranty: 5-Year No Hassle Replacement™ Limited Warranty

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What Recent Buyers Report

Many users are satisfied with what they are getting for the price they are getting it at. It is just as easy to install and service as the higher-end models. And though it is on the lower end, it still provides good heating performance that, too, with significantly reduced NOx emissions. So it is great for people who are environmentally conscious as well. 

Why it Stands Out to Us

The N95ESU Performance 95 Ultra-Low Nox is an affordable gas furnace. Though it isn’t their most advanced model, it does stand out due to its focus on being environmentally conscious. It focuses on being an energy-efficient, high-performing gas furnace that is also considerate of noise. It features the same sound dampening technology, such as a fully insulated cabinet with an inducer motor and soft mounted blower.

Furthermore, it has Silicon Nitride Ignitor for reliable direct gas ignition and a compatible thermostat with cool/heat detection. It boasts a heating capacity of up to 60,000-80,000 BTUh. It also has a solid and durable build. All in all, this is a great gas furnace when you are not looking for fancy features.

Bottom Line

Day & Night N95ESU Performance 95 Ultra-Low Nox is a great product. There isn’t anything that we can hold against it. It does what is made to do and doesn’t oversell itself. With an efficiency rating of up to 95% AFUE, and at the price point it’s at, it’s definitely a steal.


Humidifier and air-purifier capabilities

Ultra-low NOx design which performs quietly

Very energy-efficient but also good heat performance

Ten-year parts limited warranty and 20-year heat exchanger limited warranty

Improved temperature control and comfort due to single-stage gas valve and multi-speed blower motor 


On the low end when it comes to features and warranty

Comparison Overview 

Now that we’ve gone over the details of some of the most renowned models by Day and Night, let’s compare the brand with some other competitors in the industry.

Day & Night Furnaces vs Rudd

We believe the two companies have the following major differences.Price

In terms of price, we’ve come to the conclusion that Day and Night is more affordable than Ruud. If we were to give dollar signs to the two companies based on their affordability, Day and Night would get $ while Ruud would get $$.


Talking about efficiency, both Day and Night and Rudd offer an 80%-90% annualized fuel utilization efficiency.


Considering the quality factor, we would have to say Day and Night offers premium-quality furnaces while Ruud offers standard-quality furnaces.

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Day & Night Furnace vs Trane

Upon closer inspection, we found out the following similarities and differences between the two companies.


If we compare the price of Day and Night furnaces with that of Trane, we’d say Day and Night is a lot more affordable than Trane. Awarding the dollar sings to each company, the former gets $ while the latter gets $$$.


Day and Night’s annualized fuel utilization efficiency is 80%-98%, while that of Trane is 80%-97.3%.

Day & Night vs Goodman Furnace

Day and Night has been around the industry for over 50 years, while Goodman has lived through the industry for a good 45 years. Here’s a comparison between the furnaces manufactured by the two:


Goodman is a brand that is relatively cheaper if we compare it with Day and Night Furnaces. Some of their models are more affordable as compared to Day and Night furnaces with the same features. 


Day and Night, as previously mentioned, offers an AFUE of 80%-98%. Goodman, on the other hand, offers around 80%-96%.

Day & Night vs Comfortmaker Furnace

Comfortmaker have been in business for 100 years, and as mentioned, Day and Night have been in the business for well over 50 years.


Comparing the price of both companies, we’d say Comfortmaker is a bit more expensive than Day and Night. This also depends upon the model you’re choosing from Comfortmaker as different models have significantly different prices. But, overall, we’d give Day & Night $ and Comfortmaker $$.


The annualized fuel utilization efficiency corroborated by Day and Night is 80%-98%, while the efficiency ratings of Comfortmaker go up to 96%.

Day & Night Furnace Troubleshooting 

While Day and Night furnaces are top-notch models, you can expect to come across problems. Some common problems, along with solutions, are discussed here:

Clogged Filter

Since the air filter is responsible for keeping dirt and debris as far away from the blower motor as possible, these accumulate on the filter quite easily. So, it’s best to change your air filter each month.

Loose Wire

We have seen how furnaces work. While they’re doing their job, they tend to vibrate. Over time, these vibrations can lead to the loosening of the internal wires. Hence, wires don’t connect properly, and so, the furnace doesn’t turn on. If that’s the case, it’s best to call in a technician to take a look at it.

Transformer Failure

Transformer failure is another issue that can arise. If your transformer isn’t working properly, it can cause the system to short out. Replacing the transformer with a new one is the obvious choice. 

Day & Night Furnace Error Codes

Day and Night showcases error codes in three colors: red, green, and yellow. Each color flashes a specific number of times to indicate a particular problem. Refer to the instructions manual to learn what each one indicates. 

Day & Night Furnace Won’t Turn Off

If that’s the case, the problem lies in the thermostat. The easiest way to fix this issue is by servicing the thermostat. 

If you want to check whether your thermostat is the root factor that’s causing your burner to not turn off, there are two ways to do so. First, check if you’ve set your temperature too high. The other thing to check is if there’s a problem with the thermostat fan switch. This can be adjusted manually. 

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For this, locate the thermostat setting. Once you do it, you will see that it has two options, auto and on. If the fan is in the ‘on’ setting, it can keep running continuously, even when the furnace isn’t heating. Adjust the switch to ‘auto.’ 

If you’ve rectified both these issues and the problem still persists, you need to check the air filter, thermostat wiring, or the fan limit switch needs to be replaced.  

Day & Night Furnace Fan Won’t Turn on

If you’re facing this problem, you need to start off by turning off your furnace. Next, change your thermostat settings to ‘fan only’ and wait for a little while. If the fan doesn’t start, you probably either have a wiring issue in your furnace or a motor problem. This can only be fixed by an HVAC technician who can correctly diagnose the root problem and take remedial measures accordingly. 

Day & Night Furnace is Squealing When Starting

Like any other machinery, noise is a major factor in determining if something isn’t right. In a furnace, a high-pitched squealing can indicate a damaged component or part. This may require fixing, repairing, or replacement, without which it may cause further major damages. It is best to contact the company or an authorized professional expert when you hear sounds.

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Day and Night Furnace Maintenance

Regular maintenance is a crucial requirement of Day and Night furnaces, just like any other electronic system. To further answer some basic queries, we’ve drafted the following section. 

Before we jump into the questions, refer to the following simple steps for furnace maintenance:

  1. Inspect the burner flames. They should be strong, even, and blue.

  2. Vacuum out the burner and blower cavities.

  3. Remove the blower in order to clean it thoroughly.

  4. Clean the blower blades, taking serious precautions using a vacuum or a brush.

  5. Change your filter furnace regularly. You can use a fiberglass filter as it’s more affordable.

  6. Remove any dust that may be accumulated on the pilot.

  7. Thoroughly clean the flame sensor using a delicate cloth.

  8. Blow off any residue or dust from the hot surface ignitor without establishing contact with it.

  9. Always inspect your drive belt for any possible frayed areas or cracks.

  10. Lubricate the furnace bearings.

  11. It is advised to seal leaky air ducts using metal tape or high-temperature silicone.

How to Light Pilot Light on a Day & Night Furnace

Day & Night N95ESN Performance 95 Gas Furnace

In order to do this, you first need to locate the instructions label on your particular model. Next, follow these steps: 

  1. Locate the pilot switch on your furnace. It’s typically located on the bottom. 

  2. Once you locate it, turn it off by selecting the ‘off position.’

  3. Now, wait at least five minutes to give time to the gas to dissipate.

  4. While waiting, take note of the position of the reset button.

  5. Once the gas has had time to dissipate, turn the knob switch to the pilot.

  6. Then, hold down the reset button and bring flame from your lighter closer to the pilot opening. This should do the job.

  7. Once the pilot has been lit, release the pressure you applied from the reset button.

Where is the Pilot Light on a Day & Night Furnace?

It’s typically located at the bottom of the furnace. 

How to Change a Day & Night Furnace Filter

Changing the filter on your Day and Night furnace is not all that hard. Just follow these steps, and you’re good to go!

Make sure you replace the filter every month during the heating season. And, if you have air conditioning in the system, replace the filter each month all year long. 

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1. First, open or slide the door panel to get access to the furnace.

2. You’ll usually find the filter near where the cool air enters the furnace, in the cold air return duct, or the entrance to the blower chamber.

3. Slide out the old filter and replace it with the new one.

4. Ensure the airflow arrows on the side of the filter point in the right direction, i.e., towards the blower and away from the cold air.

5. Now, replace the panel or door.

How to Remove Day & Night Furnace Pilot Tube

We would recommend you to check the user manual for your particular model in this regard. It will help you correctly locate the pilot tube and perform the necessary and recommended steps to properly remove it. 

How to Clean a Day & Night Furnace

In order to keep your system in top condition, timely cleanliness is extremely important. Hence, follow the tips and tricks given below to keep everything as good as new. 

  1. Turn off the power/gas to the furnace.

  2. Wipe the exterior surfaces with a damp rag. Remove the furnace access door by lifting it up and then out. Loose the screws in order to remove the burner cover.

  3. Next, vacuum the burners and furnace base. 

  4. Gently remove the blower by unscrewing the control panel if it blocks the blower.

  5. Now, carefully clean the blower either with a vacuum or a soft brush.

  6. Carefully blow off the dust from the pilot using a straw. Try blowing off the dust from the hot surface ignitor in the same manner. Be very careful as it can break very easily.

  7. Clean the flame sensor as well.

  8. Then, remove and clean the oil caps. Also, oil the blower motor and shaft bearings. Make sure you don’t overdo them.

  9. Replace the air filters.

  10. Adjust the dampers for seasonal settings.
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There is a huge variety not only by different brands but even the same brands as we’ve seen here. We have reviewed several amazing gas furnaces by Day & Night. We hope that you have a better idea of what you can get from the products available by now. Have fun shopping!

People Also Ask

Day and Night Furnaces are an obvious choice, provided you want to invest in a quality unit that’s not only reliable but also high in performance. If you still have some queries in mind, the following section will take care of them altogether. 

Where Are Day & Night Furnaces Made?

Day and Night is owned and manufactured by United Technologies, which is a USA-based company. Therefore, Day and Night furnaces are manufactured in the USA.

Who Makes Day & Night Furnaces?

Day and Night furnaces are manufactured by United Technologies that owns other leading furnace manufacturing companies, such as Carrier, Bryant, and Payne.

How Long Has Day & Night Been Around?

Day and Night was founded in 1909 in California, USA. So, they have been around for more than 110 years.

Who Owns Day & Night?

Day and Night is owned by United Technologies.

Why Are Day & Night Furnaces so Popular?

Day and Night furnaces are characterized by their reliability, durability, and efficiency. This is what makes them so popular.

What Kind of Warranty Does Day & Night Offer?

Day and Night offers a variety of warranties, including five-year, ten-year, 20-year, and lifetime limited warranties. These vary from model to model and may be different for replacement, parts, and heat exchangers, etc.

Are Day & Night Furnaces the Same as Carrier?

Day and Night and Carrier furnaces are owned by the same company, United Technologies. They have many similarities, as users have noticed.

Is Day & Night a Good Brand?

Day and Night is a reliable brand that is known for its high performing, durable, quiet, and efficient furnaces.

How Much Do Day & Night Gas Furnaces Cost?

Day and Night Gas furnaces can cost from under $1000 to over $6000, depending on the model you are looking at.

How to Tell the Manufacture Date of a Day & Night Furnace

The date of the manufacturing of a Day and Night furnace can be determined by finding and locating the serial number on the data plate. If the date is not mentioned, you can judge it by the serial number itself. 

There are two different styles of the serial number. One includes the format of the week (first two digits), year (third and fourth digit), and sequence, and the other one incorporates the year (first two digits), month (third and fourth digits), and sequence. 

How to Install a Day & Night Furnace

The installation process and service of Day & Night gas furnaces are quite easy. We would recommend you consult your particular model’s manual and/or an expert. This is because it is very important to get this done properly for it to work efficiently.

My name is Bob Wells and I am a retired HVAC tech from Washington state. I am currently retired and no longer do much with HVAC, however, I feel like I have a lot of knowledge in the subject and I wanted to create a website where I could talk about what I've learned and help upcoming HVAC techs. Find more info about me and HVAC Training 101.