Did You Know That Plumbing Problems Can Affect Your HVAC Unit?

When you think of plumbing problems, a clogged kitchen sink or a dripping faucet are usually the sort of things that come to mind. However, did you know that plumbing issues can also be a factor in the operation of HVAC systems? Here are some examples of how plumbing is utilized in common residential cooling and heating components, as well as what might go wrong with these systems.

Central Air Conditioner

On a hot, humid summer day here in Oklahoma, the indoor evaporator coil in your central AC may extract more than 20 gallons of condensation from the air as an essential part of the cooling process. If everything’s functioning properly, all this water collects in a drip pan beneath the indoor air handler, then flows down a condensate drain line.

If a clog develops in the system — often a result of algae growth in the drip pan or some foreign object — the pan will overflow. Expensive water damage to the house can occur before you’re even aware of the problem.

High-Efficiency Furnace

High-efficiency furnaces — units with AFUE ratings of 90% or more — utilize a second stage to extract additional heat from exhaust gases. This process also condenses water vapor into a liquid that must be removed through a drain line that may discharge outdoors or into the house's drain system. Signs of plumbing problems include sudden unexplained pooling of water around the furnace.

What Can Be Done?

• To cure an overflowing AC, an HVAC technician will clear the clog in the condensate drain line as well as clean the drip pan beneath the air handler. Tablets that kill algae may also be placed in the drip pan to prevent the recurrence of clogs for the rest of the cooling season.

• If the furnace is leaking, the cause may be a clogged condensate drain line that triggers an overflow inside the unit or a leaky condensate drain pump. An experienced service tech can pinpoint the origin of the leakage and take steps to resolve the issue quickly.

For professional service to resolve plumbing problems that affect your cooling or heating system, contact Air Assurance.

How Water Hardness Affects Your Plumbing

Hard water is simply fresh water supply with a lot of calcium, magnesium, and a range of trace minerals in it. The mineral content determines the level of water hardness, which is measured in grains per gallon (gpg). Anything above 10.5 gpg is taken to be extremely hard, whereas 3.5 gpg is considered to be on the lower level of hardness.

Hard water doesn't pose health risks. Some studies suggest that it can aid heart health. Unfortunately, the supposed health benefits come at the expense of your plumbing system.

Clogged Pipes

As hard water continually passes through your plumbing system, the minerals start building up inside your pipes and restricting water flow. The reduced flow of water may not always be harmful, but it's annoying and inconveniencing. With time, the scale deposits from the hard water could clog your pipes leading to complete blockage or increased stress that results in leaks.

Reduced Water Heater Efficiency

Hard water lowers the efficiency of your water heater. If you ignore regular maintenance, a significant amount of mineral scale can build up at the bottom of your tank. The water heater will have to heat the water as well as all the scale that has built up, thereby using more energy than necessary.

If you have a tankless water heater, scale can build up in its heat exchanger. That not only makes your heater inefficient but could also cause overheating and burnout.

Damaged Plumbing Fixtures

Hard water can negatively affect any of your plumbing fixtures. Damaged seals and washers, valve blockages, and ruined finishes are some of its common effects.

Hard water can do damage behind the scenes for quite some time before resulting in clogged pipes, a failed water heater, and damaged fixtures. Therefore, it's best to be proactive by maintaining your water heater frequently, finding out how hard your water is, and installing a water softener if you find the hardness to be over 3 gpg.

For assistance with dealing with water hardness or any other plumbing issues in the Broken Arrow area, contact the HVAC and plumbing experts at Air Assurance.