Get Answers to Your HVAC System FAQs

Get Answers to Your HVAC System FAQsA well-functioning HVAC system is vital for your home comfort, so you need to know how to keep yours in optimal operating condition. Getting the answers to some HVAC FAQs is a good place to start:

Is Preventive HVAC Maintenance Beneficial?

Routine preventive maintenance keeps your HVAC system running safely, and it offers other benefits too. When the equipment is professionally inspected, cleaned and tuned up in the spring and fall, it operates at maximum efficiency. During a visit, your technician can also spot developing problems, so you can get them fixed promptly and avoid an expensive and inconvenient breakdown or component failure.

How Can I Lower My HVAC Operating Costs?

Scheduling regular HVAC maintenance is vital to keep your operating costs under control, but it’s also important to check your air filter every month, and change it when you see any debris accumulation. Having the ductwork properly sealed, adding sufficient attic insulation and weathering the exterior envelope can keep your energy costs in check. You can also install a programmable thermostat or a zoning system for better control of your energy usage.

How Will I Know if My Equipment Needs Replacement?

You may notice it’s costing more to heat and cool your home adequately, especially if the equipment is more than 10 to 15 years old. An increase in breakdowns that require repair can also tell you the equipment is approaching the end of its service life. Having a knowledgeable HVAC pro inspect and assess the system can give you a definitive answer on whether it’s time to upgrade.

Is Bigger HVAC Equipment a Better Investment?

Oversized equipment can make it more difficult and costly to maintain comfort in your home. Equipment that’s too large is prone to short-cycling, leading to temperature inconsistencies and hot or cold spots. It’s better to accurately size new equipment by having an experienced HVAC contractor take the square footage, insulation, orientation and other key factors into account, then perform a detailed load calculation.

For expert answers to questions about the HVAC system in your San Diego area home, contact Sherlock Heating & Air Conditioning.

Our goal is to help educate our customers in the greater San Diego and San Marcos, California area about energy and home comfort issues (specific to HVAC systems).

Credit/Copyright Attribution: “amasterphotographer/Shutterstock”


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  • I like what this article mentions about knowing whether or not to replace the heating system. This past winter has been rather interesting, as we had to have a lot of repairs done. I think that buying a new system could be better for this next winter. Thanks for the post!

  • The information about oversized HVAC equipment was really insightful. I thought that having a larger unit would mean that more warm or cool air would be blown through my home. It helps that you pointed out that oversized units usually work harder to run, so I should make sure to get a new HVAC that’s the right size for my home. Thanks for the information!


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