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Why Is My Heating System Rusty?

Rust is one of the great enemies of civilization: it has devastated some of the finest architectural achievements of the ancient world. Fortunately, most of the appliances in your home have better defenses against rust than were available to the Roman Empire, and with proper care and repairs, you can usually avoid problems with rust.

But what if you spot rust forming on your heating system? Does this automatically mean it has gone bad and requires replacement? Not necessarily, and it can depend on the system you have. We’ll look at some of the reasons for rust to start on heating systems in Everett, WA.

To make sure you get excellent repairs (or a replacement, if necessary) call on a heating company with more than three decades of experience: G&S Heating, Cooling & Electrical, Inc.

Rust on furnaces

Although furnaces do not use water in their operation, they can still suffer from rust because of the reaction between metal and the exhaust vapor from combustion. With proper venting of the exhaust vapor out of the furnace, corrosion shouldn’t occur on a furnace until it is extremely aged (20 years or older), and in this case you should definitely have it replaced. If rust appears earlier, you should have repairs done quickly to prevent cracking in the heat exchangers (a potentially hazardous situation) and to fix the venting issues.

Furnaces can also rust because of moisture that enters through the ventilation system: this can become a problem in a state like Washington because of our heavy amount of rainfall. Make sure the air filter in your furnace doesn’t develop moisture across it and keep it changed regularly.

One other possible reason for furnace rust is because of water dripping from an air conditioner. AC units are often mounted over the furnace in a home’s HVAC system, and condensation from the AC that overflows the condensate pan will promote rust on the furnace’s metal. You’ll need repairs on both the furnace and the air conditioner.

Rust on heat pumps

Heat pumps can suffer from rust due to the condensation of moisture along the indoor and outdoor coils. The moisture should drip down into a condensate pan and drain away. Excess moisture over the years can cause rusting across components: it’s worst to have corrosion along the coils, because this will lead to leaking refrigerant and a loss of heating and cooling power. The moment you notice rust on coils, call for repairs right away to clean the coils, check for leaks, and recharge refrigerant to its proper levels.

Don’t tolerate rust!

Rust is bad news, no matter when it appears on a heater. To find out what needs to be done, contact a specialist with heating systems in Everett, WA to look into the problem, offer advice, and provide solutions.

G&S Heating, Cooling & Electrical, Inc. has the trained and experienced team who can help you restore your home’s heating, no matter the trouble.

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