Health and Safety Update - March 17th, 2020

How your Furnace and Air Conditioner work together to keep you Comfortable?

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How your Furnace and Air Conditioner work together to keep you Comfortable?

Posted On: April 14, 2019

How your Furnace and Air Conditioner work together to keep you Comfortable?

Furnaces are used to generate heat and spread it throughout your home. 

A furnace is connected to a duct system that will distribute heated air to the various rooms of your home, which is crucial during the colder months of the year. The heating process begins when the thermostat senses the temperature in your house dropping a little below its set point. The thermostat then sends a signal to the furnace to initiate the sequence of operation needed to bring on the heat source. Heat can be produced by means of energy from multiple sources, such as electric heat, natural gas, propane gas or fuel oil. Electric furnaces heat up like large toasters, while oil and gas furnaces employ the use of electrically signaled control valves to produce flames. 

Once the furnace heats up for a short time the furnace blower kicks in to circulate heated air throughout the rooms of your home. When the thermostat is satisfied that the temperature it senses has slightly exceeded its set point it cuts off the signal to your furnace and the heating cycle comes to an end shutting off the burners or electric elements, leaving only the furnace blower fan running for a little longer to push any heat remaining in the duct system. 

During the summer when the temperature in your home rises above the air conditioning set point it sends a signal bringing on both the air conditioner and the furnace blower. The outdoor AC unit houses a compressor which pumps refrigerant to an evaporator coil located inside near the furnace. Proper functioning of your central air conditioner depends upon the correct indoor air flow provided by the furnace, and correct air flow through the AC condenser coil in order to keep the compressor running properly. 

To ensure that your furnace is running optimally, regular annual maintenance is recommended in order to minimize the chance that your system will break down during a heat wave in the summer, or during a winter cold spell. Sometimes it is difficult to diagnose the reasons why your furnace or air conditioner is not working. The best way to figure out the problem is by first looking over the entire system for any obvious installation related issues. After all, you can buy the best equipment but if it’s not installed correctly the result can be unreliable or inefficient operation. Proper setup, known as commissioning, is very important in a complete and thorough installation so that your furnace and air conditioner are operating as they were designed to. 

During the summer months, your furnace fan and electronic controls are used almost as much as they are in the winter. If the furnace blower motor stops working this can result in the air conditioning coil freezing up which can damage your furnace. Most of today’s gas furnaces contain electronic controls and do not like to get wet so when a frozen coil above the furnace starts to thaw and drip water onto the electronics the circuit board will usually short out and will need to be replaced. A skilled technician will properly diagnose any issues with your air conditioning system such as improper air flow, incorrect refrigerant charge or any other common issues that are found on a service call. 

If you are looking to replace your furnace, then it might be in your best interest to replace your air conditioner as well. This is because air conditioners and furnaces are dependent on each other in a lot of ways: 

1) Both devices use the same air blower to spread warm/cool air throughout the home. 

2) The AC Evaporator coil’s job is to transfer excess heat and humidity from inside your home to outside and it can freeze up if there is a problem with the system. 

3) The thermostat is used to activate and shut off both devices. 

4) Both devices work together to clean and condition air - for temperature and humidity - before recirculating it throughout the house. 

Replacing air conditioners and furnaces together is a good way to ensure both devices are up to date with the latest technology and are working together in perfect harmony. Contact Twintech Heating & Cooling at 1.844.894.6832 for professional assistance if you are looking to repair or replace your furnace or air 
 




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See What Our Customers Are Saying:

by Rita, Scarborough on Twintech Heating and Cooling
We were so pleased with their service

When our old oil furnace finally broke down we decided it was time to finally convert to natural gas and finally install central air conditioning at the same time. Knowing it was going to be a significant investment for us, we wanted to make the right choice. Twintech came highly recommended by a friend and we were not disappointed. From the first contact with the salesperson, until the final touches on the installation, we were so pleased with their service. Everyone from the company was so friendly, efficient and a pleasure to deal with. Best of all, the cost was very competitive. We would certainly recommend Twintech to anyone requiring HVAC work in their home.

by Bob S, Pickering on Twintech Heating and Cooling
We found him to be friendly, conscientious & he left the work area clean!

Mitch from Twintech came out for our annual furnace inspection. We found him to be friendly, conscientious & he left the work area clean. We were also very impressed with the thoroughness of the job he did. This is the 2nd job we’ve had Twintech do for us & have been very happy with the results for each. We highly recommend this company. Thank you, Mitch, Dave & Greg.

by Brent L on Twintech Heating and Cooling
Very happy with the end result!

Work was done on schedule, professionally, according to quote and with minimal inconvenience to building users. Very happy with the end result. The only area for improvement from my experience - need more timely quoting process.

by Karen on Twintech Heating and Cooling
They stand by their products and are a pleasure to deal with!

The team was great! Very knowledgeable, professional and extremely helpful. A few days after install the unit didn’t seem to be working, user error, but within minutes of contacting them..on a Saturday.. a tech was on the phone troubleshooting with us. I highly recommend Twintech for your cooling or heating needs. They stand by their products and a pleasure to deal with.

by Rob on Twintech Heating and Cooling
Within a couple of hours, we had a new unit up and running!

During the hottest week in the summer our old A/C decided to call it quits. I called Twintech Heating & Cooling after receiving a referral from a family member; came highly rated for being an honest, family-run business, who appreciates their customers. Dave was able to accommodate my hectic schedule and book a late evening appointment to walk through the specifics. Greg and Mitch arrived exactly on time a few days later, were very polite and friendly, and within a couple of hours had a new unit up and running. I also received a follow-up call to ensure we were happy with the Amana.

by Linda Robinson on Twintech Heating and Cooling
I'm so glad I decided to go with Twintech!

They were on time and very professional. I'm so glad I decided to go with Twintech, thanks!

by Famcam1953 on Twintech Heating and Cooling
What was promised, was delivered at a cost-effective price point.

Timely and appreciated - this was during the hottest days this year when our Air and Furnace way.
Efficient. Professional. No BS or overselling. What was promised, was delivered at a cost-effective price point.
Down to earth.

by DG Sellers on Twintech Heating and Cooling
Professionally done and took care to cover all entry floors

Professionally done and took care to cover all entry floors to the house for the installers to remove the old furnace and install a new furnace.
I also made recommendations of the tankless water heater that we had installed and items to address. We did not know they also installed tankless water heaters.

by Bill, Pickering on Twintech Heating and Cooling
Proud to support this local company

Price was not the cheapest nor the most expensive of my quotes. It's the quality of the installation that makes for a good AC system. The twins' knowledge & professionalism was evident in the small details:
Very clean work. Greg made sure that the refrigerant level & temperature were correct. They reinstall the insulation & vapor barrier around the wall. The outside electrical cords were secured to the wall. Proud to support this local company. Thank you.

by Taz on Twintech Heating and Cooling
Arrived on time worked very efficiently and were very clean

Great team of guys came to do the work. Very professional. Arrived on time worked very efficiently and were very clean. They answered any questions we had without hesitation. The air conditioner works great and is so quiet. I highly recommend them and they don't try to up-sell anything right from the start.

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