The Effects of a Weighty Snowfall on Your HVAC System

While the Broken Arrow area might get away with just a few inches of snow some winters, a weighty snowfall of several feet isn't unheard of. Learning how snow like this can affect your HVAC system will help you protect the system better when that blanket of white piles up.

Snow Damage

The weight of snow alone is unlikely to damage the outdoor unit of a standard heat pump or AC, but a particularly weighty snowfall can get heavy enough to bring down a window unit or even the wall-mounted outdoor condenser of a ductless mini split. Icicles and snow that build up on roof eaves or branches above your outdoor unit are a more likely cause of damage. These can fall with enough force to crush evaporator fins or any internal component they happen to land on. Moisture from heavy snow is another issue. If the unit freezes over, the expanding ice can deform the fins.

To prevent damage, regularly brush snow off your outdoor unit and shovel it away, but avoid using sharp tools to remove ice. Never cover your heat pump. If it ices over, the defrost cycle should remove the ice. It's fine to cover your AC with a sheet of plywood weighed down by bricks, but never use a cover that holds in moisture.

Blockages

A fuel-burning furnace exhausts carbon monoxide out of the house through an exhaust pipe usually located on the roof or near the foundation. A weighty snowfall can clog this pipe and cause deadly carbon monoxide (CO) gas to flow back into your home. Most furnaces have a safety switch that shuts the system down when there's a blockage, but a partial blockage can interfere with your system's performance without triggering the safety. Stay safe by regularly inspecting your furnace's exhaust and use your hands to gently remove any snow buildup you find.

For more tips on keeping your system safe from a weighty snowfall, talk with us at Air Assurance.

Always Have This Handy Furnace Checklist at the Ready This Winter

Cooler temperatures will have you turning your furnace on soon enough. If your heating system hasn’t had HVAC maintenance done since last year, it’s important to make sure it’s working properly. Keep the following tasks on your furnace checklist so that your Broken Arrow home can remain well heated all fall and winter.

Check the Pilot

Furnace pilots sometimes stop working or don’t light properly due to debris or other problems. One of the items on your furnace checklist should be having an HVAC technician inspect and clean your gas furnace pilot.

Inspect the Heat Exchanger

The heat exchanger in a gas furnace can end up with cracks or other damage due to wear and tear. This, in turn, can lead to a higher risk of carbon monoxide leaks in your home. You should have HVAC technicians check the heat exchanger as part of your furnace checklist to make sure there are no cracks or other damage.

Clean the Burners

The burners in your furnace should also be inspected and cleaned as part of your furnace checklist to make sure they’re in good condition and working properly. HVAC technicians can handle this task safely.

Inspect Pulleys and Belts

Belts and pulleys are components in your furnace that can become loose or damaged over time. Your HVAC technician can inspect these parts of your furnace during a routine maintenance visit.

Adjust the Fan Switch

If needed, have HVAC technicians adjust the fan switch for your furnace. Doing so means your furnace won’t run too long or too often, which would result in higher heating bills.

Replace the Air Filter

You should put a new air filter in your HVAC system to help ensure that it runs efficiently. Keep in mind that you should do this every month or every few months. Clean air filters help improve your indoor air quality and ensure proper airflow.

If you need to schedule HVAC maintenance as part of your furnace checklist, please contact Air Assurance. Our HVAC team in Broken Arrow can provide you with prompt and dependable service to keep your furnace in good condition.

How to Properly Shut Down Your AC as Fall and Winter Approach

With summer winding down and the colder seasons on the way, you may want to start thinking about shutting down your AC. It will help protect it from the elements so you don't have a huge mess to clean up next spring. Follow these five steps for getting your AC ready for winter.

1. Make Any Needed Repairs

Don't let HVAC problems linger through the winter when shutting down your AC. If your AC needs to be repaired, call your HVAC contractor so that the problem doesn't get worse.

2. Change the Air Filter

You've been changing your air filter regularly through the summer, right? After shutting down your AC, throw away the dirty filter and replace it with a new one. You don't want all that dirt and gunk in your AC all winter long.

3. Turn Off the AC

You'll need to shut off the AC in two places: The first place is indoors at your thermostat box. Adjust it to the "Off" setting (not "Cool"). Next, locate the box outside near the condenser unit. It's typically on the side of the house in a small electrical box. Turn that switch off when shutting down your AC.

4. Clean the Condenser and Evaporator

The condenser and evaporator coils have probably taken on a lot of dirt and debris over the summer. Pick up a can of coil cleaner at your local home improvement store and spray it on both indoor (evaporator) and outdoor (condenser) coils to clean them. For an easier time, you can choose a self-rinsing cleaner.

5. Cover the Outdoor Unit

Once your outdoor unit is completely dry, cover it up. Use a waterproof tarp and bungee cords to secure it when shutting down your AC. This will keep debris out of the fan through the winter.

6. Schedule Professional HVAC Service

Now that your AC is shut down, it's time to get your furnace ready for the colder months. Call your HVAC contractor to schedule a furnace tuneup so you're ready to go whenever cold weather may strike.

For any questions about shutting down your AC or to schedule service this fall, please contact us at Air Assurance.

Winterizing Your HVAC System

Your furnace gets quite a workout in Broken Arrow during the winter, so it pays to schedule annual preventative maintenance to ensure it works reliably through the worst of winter. Here's what winterizing your HVAC system, particularly your furnace, should look like:

Air Conditioner

Before you schedule preventative maintenance, you should square things away with the air conditioner. First, clean up around the outdoor condenser, removing leaves, weeds and other debris. Trim overhanging limbs and shrubs away so that nothing falls on the unit during a storm.If you're concerned about freezing rain dripping inside the unit -- moisture that freezes, melts and refreezes can cause damage -- then place a square of plywood over the top and secure it to the ground. You can cover the unit up with a commercial cover, but be aware that sometimes covers provide a cozy habitat for rodents and other creatures through the winter.

Change the Air Filter

The change of seasons is a good time to change the air filter. Starting the heating season with a clean filter will help ensure that the inner workings of the system are free of dust so that the furnace runs more efficiently.Follow manufacturer's instructions to change the filter. If you don't know where your filter is located, ask your HVAC technician to show you, and to show you how to change it.

Preventative Maintenance

When you schedule your preventative maintenance on your HVAC system you can expect the technician to perform a number of tasks. Among them are these:

• Check thermostat to ensure the system attains the right temperature set points.

• Inspect and tighten electrical connections.

• Lubricate moving parts to reduce friction, which decreases efficiency.

• Test controls. Make sure they are operating properly.

• Inspect condensate drain. This drain can get stopped up over time, resulting in flooding.

• Inspect furnace parts, including gas connections, burners and heat exchanger. A crack in a heat exchanger can cause unsafe operation, including the leaking of carbon monoxide.

For more on winterizing your HVAC system, contact Air Assurance. We serve Broken Arrow and the surrounding area.

Our goal is to help educate our customers in the Tulsa and Broken Arrow, Oklahoma area about energy and home comfort issues (specific to HVAC systems). For more information about winterizing and other HVAC topics, call us at 918-217-8273. Credit/Copyright Attribution: “kmicican/Pixabay”