Why Does My AC Smell Strange?

April 18th, 2022
woman-with-sinus-troubles

An air conditioning system is not supposed to have any noticeable odor as it runs. The air from the vents should have the neutral smell of the rest of the house. If you start to detect any smell from the air vents you’ve never noticed before, such as a dirty laundry stink, rotten eggs, or an acrid burning, it’s something to pay attention to.

You may need to call our technicians for air conditioning system repair in Fresno, CA after you notice any of these odors. A few may have simple causes, but in many situations, these odors warn of a bigger problem with an AC. We’ll look into these strange air conditioning system smells and what they may mean.

Continue Reading

Time to Prep for the Heat With AC Maintenance

March 21st, 2022
air-conditioner-unit-being-repaired

We’re experiencing extremely hot days in the Central Valley—days with true summer heat, and spring has only just started. You may have had to turn on your AC for the first time in several months to battle the heat. But your air conditioning system is going to need extra help to handle the continuing heat we’ll face through the middle of the year: professional air conditioning maintenance.

We always stress with our customers the importance of having their air conditioning systems professionally inspected and tuned up annually, preferably in spring to beat out the hot weather. The weather is already turning hot, so the time to call us to schedule your regular air conditioning maintenance in Fresno, CA is now. 

Continue Reading

Understanding SEER, AFUE, and Other Efficiency Ratings for HVAC Systems

March 7th, 2022
energy-start-label

Spring is approaching, and this is a time of year when many homeowners start to consider what upgrades or replacements they might need for their heating and air conditioning systems. You may have just gone through a winter with a furnace that was underperforming because of its age. Or you might know that your current air conditioning system isn’t up to handling another summer in the Central Valley.

You’ve come to the right people when it comes to great AC and heating in Fresno, CA. Our team can guide you through the process of replacing an older system if that’s the best choice for your house. One tricky part of getting a new HVAC system for homeowners is understanding the different efficiency ratings and what they mean. We’ll run down the three major ones you’ll need to know for heating and air conditioning.

AFUE

This is a rating used for furnaces. It stands for annual fuel utilization efficiency, and it’s expressed as a percentage. The percentage tells you how well a furnace converts its energy supply into heat. A gas furnace with 90% AFUE will turn 90% of the natural gas it burns into heat for the home, and the remaining 10% will escape the furnace as exhaust. 

As of 2013, the minimum requirement for a furnace to receive the ENERGY STAR label from the Department of Energy is 80% AFUE. Many furnaces will score higher than this. High-efficiency condensing furnaces can have AFUE ratings in the high 90s, but they cost more to install. All electric furnaces have AFUE of 100%, but that’s because they don’t lose heat to exhaust. Electric furnaces will still cost more to run on average than gas furnaces because electricity is a more expensive energy source.

SEER

SEER (seasonal energy efficiency rating) is used for air conditioning systems and heat pumps when in cooling mode. It’s the ratio of the amount of heat a unit removes from the air in BTUs to the amount of electricity consumed in watt-hours, as measured over a full season of cooling. (There’s another rating, EER, which is done with only a single test.) The higher the SEER rating, the more efficient the unit. The current ENERGY STAR requirement for air conditioners and heat pumps is SEER of 14.5 or higher. High-efficiency units, such as variable flow refrigerant air conditioners, can have SEER in the 20s. 

HSPF

This is a rating specific to heat pumps. Heat pumps work in two modes, heating and cooling, and have different ratings for those modes: SEER for cooling and HSPF for heating. HSPF stands for heating seasonal performance factor and is the ratio of the amount of heat brought into a house in BTUs to the amount of electricity consumed in watt-hours, measured over a full season of heating. HSPF is always lower than SEER for a unit, as heat pumps are less efficient in heating mode. The ENERGY STAR minimum for HSPF is 8.5.

The efficiency of any new system you have installed is important, but it isn’t the only factor. You’ll want the help of our professionals to find the ideal unit to provide comfort to your house as well as energy savings.

Call Purl’s Sheet Metal & Air Conditioning when you’re interested in a new HVAC system installation. Uncompromised Quality & Customer Service Since 1952.

Continue Reading

Can I Save Money on Comfort by Closing Room Vents?

February 21st, 2022
vent-register

Many room vents connected to a home’s ventilation system have shutters on them to alter the direction air enters a space. These shutters can also be pushed to close the vent, leading people to believe that they can shut off heating or cooling to a room this way and save money. If the vent doesn’t have shutters, they may try putting an object in front of it to block it and achieve the same effect.

We’ll explain below why doing this doesn’t work, and why it creates problems for your HVAC system. But don’t despair—we’ll have some suggestions at the end for how you can better control home heating and cooling to increase energy efficiency.

Continue Reading

Is It Too Late to Have Heater Maintenance?

February 7th, 2022
dont-forget-post-it

We’re now well into the winter, although recently we’ve experienced a warm weather stretch. Still, you’ve almost certainly had your furnace or other heating system running—and we hope that during the fall you remembered to call us for heating system maintenance in Fresno, CA. Routine maintenance is still the best way to prevent repair problems, drops in heater efficiency, early system replacements, and safety worries. 

However, if you didn’t remember to have maintenance before the winter started (we understand that life gets busy!), please don’t think that you missed a window of opportunity and it’s just too late to have it done now. But it isn’t! There’s no such thing as an expiration date for heating maintenance—the only requirement is that it gets done annually. Call us to sign up for our Ultimate Service Agreement and we’ll see you get on the schedule for a maintenance inspection and tune-up. 

Continue Reading

How Does Electronic Ignition Work in a Furnace?

January 24th, 2022
furnace-burners-CU

The natural gas furnace has been common in homes since the 1940s. Until fairly recently, these furnaces used a standing pilot light to ignite the gas burners at the start of their heating cycle. The pilot light would maintain a small flame throughout the heating season so whenever gas flowed to the burners, the pilot would immediately ignite them.

There are still furnaces in use today that have standing pilot lights, but they’re becoming rarer each year. Most natural gas furnaces have changed over to using electronic ignition systems instead. The reason for the change is to make furnaces more energy-efficient as well as more reliable. A pilot light that burns for the whole winter is an additional drain on natural gas, while an electronic ignition system only needs to use power at the moment it ignites the burners.

How does electronic ignition work? There are two general types of electronic ignition systems found in furnaces: hot surface ignition and intermittent pilots.

Continue Reading

Have You Had Your Dryer Vent Cleaned Yet This Year?

December 14th, 2021
dirty-dryer-vent
Interior of dirty dryer vent

An important service our team offers customers is dryer vent cleaning in Fresno, CA. This is a job we recommend homeowners have done at least once year. Unfortunately, people often forget to schedule this vital cleaning service—and that’s why we’re glad you stopped by this blog for a reminder. Dryer vent cleaning may not sound like it’s as important as other maintenance jobs like heating system maintenance, but as we’ll explain below, the safety benefits alone make it essential!

Continue Reading

Coats for Kids 2021!

November 19th, 2021

Purl’s Sheet Metal & Air Conditioning is kicking off Coats for Kids 2021. We are now collecting coats for the Annual Coats for Kids drive in the Central Valley. We are proud to be working with our customers, local schools, and our community to collect coats.  

Collection dates are November 1th–December 12th, 2021

Drop off is Easy! Please bring new coats to our local office at 232 South Schnoor Street. Give us a call when you arrive in our parking lot and we will do a curbside pickup: (559) 674-2774.  

Coats for Kids program will be accepting NEW coats only in 2021. Please know that your donation of a new coat will go a long way to help keep the kids in our Valley stay warm through the winter months. 

The support of our local community has a far reach and we may never know the full impact these acts of kindness have for our youth.  All of the coats collected will be given to children who need them most right here in the Central Valley. 

Continue Reading

Off to a Slow Start … Is Your Furnace Not Giving You Enough Heat?

November 1st, 2021
cold-man-and-woman-in-parkas

As we move into the colder months of the year, your furnace will begin running more often. You’ve probably already had it on a few times—and we hope you’ve called us to arrange for heating system maintenance. (If not, now is a great time to have it done!)

You may notice as the winter starts that your furnace isn’t living up to expectations. There are cold spots in rooms, the general household temperature feels lower, and you have to fiddle around with the thermostat to get enough heat. These are all warning signs you may need furnace repair in Fresno, CA, and we don’t recommend you wait long to call us to schedule them. What might seem like a small trouble can balloon into a larger one, and you also want to avoid any potential safety hazards.

Below we’ll look at why your furnace may be off to a slow heating start.

Continue Reading

Hot Dog Dinner at the Madera Fair 2021

October 22nd, 2021

Purl’s Sheet Metal & Air Conditioning along with Randy and Sheryl Berry hosted the Annual Hot Dog dinner on September 7 from 5–7p.m. We were excited to host a complimentary dinner for all the 4H and FFA Exhibitors and their families for the Madera District Fair. The 4H and FFA kids arrive a few days before the Fair opens to work and prepare to show their livestock animals. The hot dog dinner is an annual tradition in Madera that everyone at Purl’s Sheet Metal & Air Conditioning looks forward to attending. We cooked over five hundred hotdog dinners complete with drinks and all the fixings. It is a great way for us to get out in the community and support our local hardworking kids and the agricultural community.

Continue Reading