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The Importance Of Calculating Heat Gain And Loss

By All-Temp Heating & Cooling

Date Published: March 9, 2022

Maximize Your Energy Efficiency With A Properly Sized System

We still have a few more weeks of colder weather here in Staunton, which means we can’t say goodbye to our heater just yet. Before we make the transition from heating to cooling, we wanted our readers to be aware of the importance of calculating the heat gain and loss in your home. Being aware of your home’s heat gain and loss can save you money and maximize your energy efficiency.

What is Heat Gain and Loss?

Heat can enter and leave your home through a variety of sources. Heat can travel through walls and ceilings and sunlight can penetrate through windows. Heat gain and loss is important in both summer and winter months due to heat exiting or entering.. This can affect the comfort level in your home.

Why is Heat Gain and Loss Important?

The amount of heat loss and gain is important for several reasons. In simple terms, calculating gain or loss ensures that your home is being adequately heated or cooled. Determining this calculation allows the homeowner to be aware of the energy needed to keep a room at the desired temperature. It is important to understand your heat loss and how to reduce it.

How to Calculate Heat Gain & Loss

Have you ever thought to yourself, “Why do I feel hot and sticky when my AC is set to 68 degrees?” The discomfort you have been feeling could be due to the heat gain and loss in your designated space. The Manual J calculation estimates heating and cooling loads for residential buildings. This formula assesses your situation and describes the size of equipment needed. Manual J is typically used by HVAC technicians like us at All-Temp. 

Manual J analyzes home characteristics such as walls, square footage of floors, ceilings, size of rooms, number of doors and windows, and amount of insulation. Other factors are number of occupants, location, ductwork, sun orientation, and appliances. The Air Conditioning Contractors of America (ACCA) have created a load calculation checklist for technicians to follow as they perform the check in your home. 

All of the factors taken into account help determine the total amount of heat lost and gained through the exterior of a home in the summer and winter months. Taking this specific calculation allows your All-Temp technician to determine a proper HVAC unit for your home. Your technician may provide recommendations for adjustments to make in your space if possible. Let All-Temp help maximize your energy efficiency and keep your home a comfortable temperature.

Anna M.
1714693924
This is my first call for service to All temp HC company and was very impressed with friendliness and professionalism of workers. First I spoke with Brandy who answer on every question I had with deep knowledge, patience and kindly. Since that conversation I already knew I call right place. After that, I met Dylan Dickenson (technitian ) who did diagnostic analysis of whole existing system. Was again, very professional, thorough , patient and also kind and friendly. Explain to us all issues HVAC has and gave us options we do have and explained all we needed to know to make a right and reasonable decision. There is a job ahead for us, but what we already experienced with Dylan, Brandy tells us a lot about this Company, its employees and great services they provide. Thank you , Dylan, continue a great job. Our Family appreciate you! Your attitude and high work ethic raises company’s already high reputation. Definitely recommend ALL TEMP H and C Company to everyone!
R. Philip F.
1714676159
Today All-Temp Heating & Cooling, LLC serviced our home system. They were on time, thorough, completely transparent with recommendations and associated costs. Can't say enough good things about Dylan! Very respectful of our home and property. We will definitely work with All-Temp again and request Dylan.
Dana K.
1714670400
Darrin H.
1714669641
Excellent service today by Evan Hughes. Was very professional and expedient. All-Temp and employees always customer focused.
Tom W.
1714656957
From beginning to end, the All-Temp team did a fantastic job. Jake provided a clear and thorough quote with several options. Thomas communicated well, was punctual, and made sure everything was cleaned up throughout the installation. And Forrest's follow-up after the installation was a nice touch to let you know they care about the work they do.
Mike R.
1714608572
Very professional and thorough! Good customer communication.Issac is awesome! Takes the time to explain things and then he clearly says what he’s going to do to fix the problem.Thanks for getting here so soon. We thought for sure we’d be going through the weekend with no AC. The house is now nice and cool, thanx to Issac and All-Temp!!! Appreciate y’all!!!!
Michael B.
1714595855
Evan is a very knowledgeable courteous kind and helpful technician. If Evan is sent to your home for diagnosis and or repair you can rest assured all will be done correctly and in a timely manner.
Bob S.
1714591383
Professional approach and work. Technician took time to answer my questions and explained issues in a manner that was easy to understand.I would recommend All-Temp for HVAC service or system installation without hesitation!
LaLa M.
1714590419
Was prompt, on time. Friendly and explained things well.
Deborah A.
1714587215
I highly recommend All-Temp. They are the best!
Jeff B.
1714572261
Technician was very knowledgeableKept me informed through the whole processRepaired A/C and made suggestions for future preventive maintenance. I highly recommend
Al C.
1714568854
Unit was installed in a timely manner. Personnel were friendly and answered questions. Installation was very professional and neat in appearance. Would highly recommend All Temp for any HVAC installation.
Lynn M.
1714529231
We were so pleased with Thomas and Sebastian’s work. They were friendly, efficient and professional. They went above and beyond to get the new unit working safely and efficiently. We are pleased with their work!
Thomas B.
1714496660
Dylan was one of the most knowledgeable, professional and courteous people I have ever met. It is difficult these days to find quality individuals in any field including the service and technical businesses. He is an exemplary ambassador for your organization!
Matt B.
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Glen E.
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Jada S.
1714415348
All-Temp Heating & Cooling provided an amazing service and friendly workers. Definitely recommend!
Ashley M.
1714270494
Everyone I spoke to at All-Temp was very pleasant and professional and helpful. Jason arrived promptly and explained the issues he found with my system clearly, and helped me make a further appointment to appraise and quote further work needed. I'm looking forward to figuring out "what I'm doing" and getting my heating issues solved and resolved!1st day on the project, all seems to be going well. My one suggestion is that I'd REALLY appreciate some written instructions on how to operate the fancy space heaters!And now, what we all hope really is the last day on the project. There were some issues with the equipment that resulted in three separate callbacks. In each case, the problem was identified, the parts were promptly ordered and delivered, and the issues were resolved. The longest I had to wait was one week and two days--from my call to say "there's a problem, folks," to a technician coming out, diagnosing the problem, ordering the replacement compressor, and installing it.I would not hesitate to recommend All-Temp Heating and Cooling to anybody. This is the kind of service you wish you could get everywhere, from the folks who answer the office phones to the technicians on the job. They are fantastic. Thank you!
Charles D.
1714165051
Very knowledgeable staff. They definitely have can do attitude. A very impressive young man dylan came today.
Linda T.
1714157695
Peace of mind knowing we can count on you when needed.
Dennis C.
1714151864
Friendly, very thorough, very professional, just nice to work with. Gave my all my options so I can make an informed decision.
Dean D.
1714081780
Frank T.
1714063802
The service tech called ahead of time to let me know he was on his was way. He was very courteous and spent over two hours checking out my system. After the service, he spent a lot time explaining the results of the service. I have always been pleased with All-Temp and their technicians.... Their office staff is also extremely pleasant as well and very helpful....
Tiffany G.
1714056775
Spring is here yet again and time for another HVAC check. Today I had Evan L. as my maintenance technician and he did a great job. He explained everything that I needed to know about my maintenance check. Recommendations were made but I never felt pressured to commit. My unit is still performing great and I am very pleased with my service. Thanks All-Temp
Linda H.
1714056310
Today’s service and Tech was excellent
Tim and Sue N.
1714048523
They came out to replace a thermostat that was under warranty, however when I woke up this morning it was 59 in my house and it took me a long time trying different things to get the system to even come on. When I finally got it on, after a reboot, it did not warm the entire house to the temperature set. The upstairs is still registering 63 UPDATE: They came out the following afternoon and reprogrammed the thermostat to recognize the sensors upstairs, but then they found that a damper motor was broken and stuck in the closed position. Our two year old system is still not operating at 100% as we wait for the part to come in.UPDATE: It seems our system has a few bugs to work out and All Temp has been very responsive and professional in getting our system back on track. Every technician that has serviced our system has been professional. We really appreciate the owner of the company taking an interest in our problems and working with us to secure a solution. I would recommend this company if you're looking for a company that cares about their customers as well as the knowledge required to keep systems operating at peak performance.
Ashley R.
1713989931
Prompt and very helpful! Dylan is very kind and helpful
Doug E.
1713987602
Service tech exceeded all categories.
Carol B.
1713987576
We just finished having 2 gentlemen install larger duct work in a multi purpose room. At the same time we had a new air conditioner/ heat pump installed too. These two were very polite, did a wonderful job and cleaned up after their work. I highly recommend All-Temp for heating/air conditioning installations and service. Thank you Thomas and Sebastian!
Charles C.
1713982458
Mclatt
1713888196
I have had this Company install and work on both my heating and air conditioning systems. I got the right tech person, Chris, and he did his job very well. He was quick and reviewed everything. He is very pleasant and appealed to be very knowledgeable about my system. Overall the experience was 👍 👌 You will not go wrong with this Company.
James E. M.
1713808771
6/9/23 Review - Sam Dawson Service Tech just completed a spring checkup on my heating/cooling system. I was very impressed how thorough he was. Clean cut former marine that is very professional. Thank you10/9/2022 project - Great job by the All-Temp team installing exhaust vent for kitchen stove. Very professional install. Thank youOne of their techs (Chris)came to my house today for a 6 month checkup. I was totally impressed how through Chris was on cleaning and checking my system. Really like his work. Would have given 5 stars if they had installed a more premium furnace filters.Update: Had All Temp upgrade my heat pump to a Trane XV20i. It is 100% improvement over previous system. Jason Hughes and his team were outstanding to work with and did a very professional job.11/4/2023 Technician Isaac Eavey was here today to do a routine maintenance on my heating/cooling system. Very clean cut and professional. Gives me a real sense of confidence that I'm okay for the winter month ahead. Thanks Isaac...
Linda K.
1713789856
Excellent job...kept us informed of all the work done. Efficient and personable worker.
Robert R.
1713747276
Martin B.
1713711142
Brad C.
1713702897
Nice job.
Jeff K.
1713648172
Donna D.
1713624381
I needed a new AC/Heating system. This was based on Chris' findings when he came for my yearly maintenance. Chris explained what was happening and showed me a picture. He was thorough with explanation. Forest came to review the issues and provide a quote. He provided options and was very thorough also with what was going on and why I needed both AC and furnace. The installation was completed by Thomas and Wyatt. They worked hard from arrival to departure for two days. The system needed new duct work in the basement. I am so impressed with how Thomas and Wyatt worked. Their clean up each day was very impressive. Thank you All Temp for taking care of all of this and making it happen in a quick turnaround time.March 2022 - Maintenance on the heating system was completed. I wasn't used to the new Ecobee thermostat. There seemed to be a couple of small issues with it and Dylan came and went through everything thoroughly. He was detailed and explained what he was doing. One more small issue arose last week and Chris came out. He was detailed and everything is working fine. All Temp employees are knowledgeable. They worked me into their schedule and that was greatly appreciated. Brandy is the one in the office who makes the schedule happen and she follows up to assure all is well. Thanks to everyone.April 2023All Temp tech Chris completed annual maintenance on my AC system. He is very thorough and explained everything in detail. This is a great company and they have great technicians.
Andrew W.
1713485398
Laura H.
1713475957
We friendly and honest company
Jessica Y.
1713469930
Another awesome All-Temp experience! Sam was great and very personable. Everyone I have dealt with at this company has been so great to deal with!
David B.
1713466081
Our technician (Chris) was punctual, thorough, and friendly. I felt that he did a great job and made good recommendations without trying to upsell me.
Gary H.
1713457190
Dillan took the time to educate me on our system and inform me of ways to make it last longer. Thank you All Temp in giving 5 star service.
Christopher H.
1713439575
Thank. You. Alltemp will spread the word .Everyone on your team from sales to installerThank. You.
Allan S.
1713393951
Tech (Chris)was very thorough and explained everything extremely well. He was just the person I was looking for. Knowledgeable, polite, answered all my questions I had into layman’s terms. Definitely the ideal tech to have analyze your system!
Shirley A.
1713390814
he was friendly and knowledgeable, answered my questions, sent a check list with what he found, told me about a update for the furnace wasn’t pushy about me buying anything l would definitely recommend them.Kathy Arehart
Donna E.
1713390549
On time, professional, explained everything in layman’s terms.
Dickson S.
1713375360
Emily
1713375069
Jason was very thorough in checking all aspects of my furnace and clearly explained the checkup.
Jennifer D.
1713361450
Polite, friendly, efficient and knowledgeable! Timely, too 👍🏻
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