What temperature should I keep the house while on vacation?

• <div><p>Set your house temperature between 55 and 85 degrees Fahrenheit while on vacation, depending on the season. If it’s winter, don’t go below 55 degrees. In the summer, the <a href="https://www.angi.com/articles/best-ac-temp-for-energy-efficiency.htm">best AC temperature for energy savings</a> is no higher than 85 degrees. You can save anywhere from 10% to 15% on your energy costs by adjusting the temperature while you’re away. If you have a smart thermostat, set up vacation modes for each season. On your way home, turn off vacation mode to allow the home to warm up or cool down before you arrive. </p></div>

Is it bad if my evaporator coils and condenser coils don’t match?

• <div><p>Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. </p><p>Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.</p></div>

Does setting the AC to 78 save energy?

• <div><p>Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. </p></div>

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TRUSTED BY GRAHAM, TX HOMEOWNERS

4.6
Average homeowner rating
109
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Verified Reviews for Heating And Air Conditioning Service pros in Graham, TX

*The Angi rating for Heating And Air Conditioning Service companies in Graham, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Graham, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on November 17, 2025

Reviewed in June 2025
Stacy repaired my A/C unit and did a checkup on my system. He did an outstanding job and will be using him in the future.
KITE HEATING & AIR CONDITIONING
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Reviewed in June 2024
Repaired my ac and is working fine
Evans Heating And Cooling, LLC
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Reviewed in June 2022
They came quickly and fixed it quickly. The man was very nice and friendly. He knew what he was doing and got my AC up and running very quickly. The price was reasonable. Anything else goes wrong with my AC I am calling A & D Heating and Air Conditioning for sure. I could not ask for better...
3C Mechanical Technologies, Inc.
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Reviewed in January 2020
Neal was very responsive, punctual and paid attention to detail. He educated me on the differences in various qualities of radiant barrier and on the value of using high quality. He also went so far as to tell me where not to install additional insulation as it would be a waste of money. He...
Affordable Radiant Barrier
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Reviewed in March 2015
I like them and have used them in the past as well. They've done excellent work and are very detailed in their checks for the heating and A/C units. I always go with them and ask questions, which they are very good about explaining everything to me.
Reliant Air Conditioning
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Reviewed in August 2014
Matt is an excellent technician, who is punctual, polite and professional!! I am an RN, so I got a kick out of his "description of work"; they read like well-thought nurse's notes. I will always call Ed Johnson's A/C and Heating!
A Degree Above Heating and Air
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Reviewed in January 2014
We are relatively new to the area and word of mouth recommendations give us a point of reference for services when searching Angie's List. It seem that everyone has a 'guy' for something; I now have a guy I will go to for all my HVAC needs. Danny Redona was professional, had time for all my...
SO COOL
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Reviewed in January 2014
Charged me for a service that failed in 6 days and told me it would be an additonal $2500.00 for further repair. Did not do a leak check! on A/C.
Wright's Air Conditioning, Inc.
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Reviewed in January 2014
It was it the heat of the summer when the A/C went out. After it was fixed by Ken Parker Services we found out that they GOUGED us on the cost of the freon. They charged us $50 a lb and we since found out that most other services charge half that cost. We feel like the took advantage of me (a...
Ken Parker Service, Inc.
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Reviewed in March 2013
Replaced entire a/c and heating system; temperature was down below 20 degrees f and electric furnace would not work, He installed a new unit the next day and we are completely satisfied with the unit including the price. The new installed unit is a 4 ton trane with heat pump and electric...
FORBES AIR CONDITIONING & HTG
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Find Heating and air conditioning pros in Graham

Local Roofing and Construction LLC

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Local Roofing and Construction LLC

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Free onsite estimate

We specialize in all phases of roofing and siding services, repairs, replacements, installs, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

Branded roofing and construction

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Branded roofing and construction

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Free onsite estimate

Roofing commercial or residential Hvac

easy simple solar

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easy simple solar

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5 years of experience

WHAT'S IN IT FOR ME? Cut your bill between 30%-60% at no additional cost by locking in your utility rates from several years ago. Homeowners MUST QUALIFY for this limited program. SUMMARY Simple Solar Advisors. The lowest price for the best quality home services. Reason? We provide volume nationwide to our vetted local installers. We're virtual. Your steps are easy. HOME SERVICES Solar, Roof, HVAC, Windows, Remodeling, etc.

Wise Heating & Air Conditioning, LLC

5.00(

)

Wise Heating & Air Conditioning, LLC

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

We at Wise Heating & Air Conditioning are determined to provide a affordable heating and air conditioning service with the highest quality. We specialize in thinking outside the box and making your living space more enjoyable and comfortable. Please call our office today to schedule your appointment or free estimate at 866-389-9473 We are determined to treat each customer like you would want your parents and grandparents treated. Our Owner has been in the HVAC Business for 20+ years and has worked from industrial HVAC to small Refrigeration systems. Think Wise when choosing your next HVAC Contractor.

"Fast response with 24 hour service available if needed. We loved the ongoing communication from the moment we contacted them."

Cindy F on August 2023

"Fast response with 24 hour service available if needed. We loved the ongoing communication from the moment we contacted them."

Cindy F on August 2023

Ultimate Plumbing Heating And Air Conditioning

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Ultimate Plumbing Heating And Air Conditioning

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If you need quality plumbing service feel free to contact Ultimate Plumbing Heating And Air Conditioning! Call us now for more information! Affordable Plumbing, Professional Air Conditioning, Affordable Air Conditioning Service, Local HVAC Contractor, Local Plumbing Service, Dependable Plumber, Affordable Plumbing Service, Affordable Heating Contractor, Reliable Plumber, Local Plumbing Expert Seagraves TX;Loop TX;Welch TX;Brownfield TX;West Point TX Plumber, Plumbing, Plumbing Contractor, Plumbing Service, Plumbing Repair

Advanced Construction Enterprise 1, LLC

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Advanced Construction Enterprise 1, LLC

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22 years of experience

Advanced Construction Enterprise is a great company who has a team of smaller comapies that work together to save you money.

Spearman Automotive

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Spearman Automotive

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23 years of experience

Roadside service, full mechanical repair on roadside or in shop.

Shur-Flow Services

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Shur-Flow Services

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HVAC Services in Texarkana

Rocky’s AC and Heating

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Rocky’s AC and Heating

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Having a well-functioning HVAC system is essential for any Odessa, TX property owner. For all of your HVAC needs, trust the professionals at Rocky's A/C & Heating. Our established team of contractors is equipped to handle all jobs large and small, including:

Allen Christopher HVAC

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Allen Christopher HVAC

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26 years of experience

With over 16 years of experience we can assure that your problem will be solved fast. Air conditioning, heating, appliance repair - basically everything HVAC related. Got a question? Always feel free to drop us a call!

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Showing 1-10 of 103

Heating and Air Conditioning questions, answered by experts

Set your house temperature between 55 and 85 degrees Fahrenheit while on vacation, depending on the season. If it’s winter, don’t go below 55 degrees. In the summer, the best AC temperature for energy savings is no higher than 85 degrees. You can save anywhere from 10% to 15% on your energy costs by adjusting the temperature while you’re away. If you have a smart thermostat, set up vacation modes for each season. On your way home, turn off vacation mode to allow the home to warm up or cool down before you arrive.

If an air conditioner is younger than 10 years, it’s worth trying to repair it in most cases. Some basic maintenance or a cleaning might bring it back to working condition. However, many HVAC pros swear by the “5,000 rule.” If the estimated cost of your repair multiplied by the unit’s age is more than $5,000, it’s time to replace it.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity.

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours.

The Graham, TX homeowners’ guide to heating and air conditioning services

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How Much Does It Cost to Replace an AC Condenser? [2025 Data]
If you’re having problems with your air conditioner’s condenser, it may be time for an upgrade. Learn about the cost to replace an AC condenser in this guide.
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Whole-House Humidifier Pros and Cons: Are Humidifiers Worth It?
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If you don’t regularly change out dirty furnace filters, it could seriously impact the air quality of your home. Keep reading to learn the many reasons why you should keep on top of your furnace filters, changing them every one to three months.