If you have an HVAC system, you probably already know the importance of regular maintenance and upkeep to keep it running efficiently. One crucial component of an HVAC system that often goes overlooked is the condensate pump. A condensate pump is a device used to remove the water that accumulates in an air conditioner or furnace during operation. Without a functioning condensate pump, your HVAC system may not work correctly and could even lead to water damage in your home.
In this article, we'll take a closer look at condensate pumps, how they work, and why they're so necessary for your HVAC system's performance.
Table of Contents
- What are Condensate Pumps?
- How do Condensate Pumps Work?
- What are the two types of condensate pumps?
- How do you install a condensate pump?
- How often should a condensate pump run?
- How do you clean a condensate pump?
- What happens if my condensate pump fails?
- How much do condensate pumps cost?
- How do you maintain a condensate pump?
- How long do condensate pumps last?
What are Condensate Pumps?
Condensate pumps are devices that remove water that collects in an HVAC system during operation. This water, known as condensate, is a natural byproduct of the cooling process. Without a condensate pump, this water would accumulate and eventually overflow from the collection pan, causing damage to your HVAC system and potentially your home.
How do Condensate Pumps Work?
Condensate pumps use a small motor to move water from the collection pan to a drain or discharge point. As the water level in the collection pan rises, the condensate pump is activated and begins pumping water out of the pan. Once the water level in the collection pan falls to a certain level, the pump turns off until it's needed again.
$2,599
Stiebel Eltron Accelera 300 E Heat Pump Water Heater
The Stiebel Eltron Accelera 300 E Heat Pump Water Heater represents the pinnacle of water heating technology, engineered in Germany and leading the European market for over 30 years. Unlike traditional models, this heat pump water heater is designed to operate primarily on its heat pump mechanism rather than relying on a backup element, ensuring maximum efficiency. It offers an impressive reduction in hot water costs by up to 80%, providing both comfort and the lowest possible energy expenditure. Moreover, the Accelera 300 E is backed by a robust 10-year warranty, emphasizing its reliability and long-term performance. Capacity: 79.8 gal Refrigerant: R134a Operating temperature range: 42°F to 108°F (6°C to 42°C) Water connection: 1˝ male NPT Condensate connection: 3/4˝ male NPT to ½˝ barbed elbow Safety condenser: Wraps around outside Voltage / Frequency: 220–240 V / 60 Hz Circuit breaker: 15 A * Installation location has to have a minimum size of 10´ x 10´ x 8´.
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Stiebel Eltron Accelera 220 E Heat Pump Water Heater
The Stiebel Eltron Accelera 220 E Heat Pump Water Heater redefines home water heating efficiency, harnessing heat pump technology to deliver unparalleled energy savings. Engineered in Germany and celebrated as Europe's top seller for over three decades, this innovative water heater slashes hot water costs by up to 80%. Unlike traditional models, it prioritizes the heat pump for heating, minimizing reliance on backup elements and ensuring optimal efficiency. With a robust 58-gallon capacity and a design focused on minimizing standby losses through superior insulation, the Accelera 220 E stands out for its commitment to both comfort and eco-friendliness. Its meticulous engineering is supported by a 10-year warranty, ensuring that homeowners enjoy both peace of mind and significant energy cost reductions. Capacity: 58 gal Refrigerant: R134a / 850 g Operating temperature range: 42°F to 108°F (6°C to 42°C) Water connection: 1˝ male NPT Condensate connection: 3/4˝ male NPT to ½˝ barbed elbow Safety condenser: Wraps around outside Voltage / Frequency: 220–240 V / 60 Hz Circuit breaker: 15 A * Installation location has to have a minimum size of 10´ x 10´ x 8´.
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Innovative Dehumidifier IW25-5 In-Wall Dehumidifier
The Innovative Dehumidifier IW25-5 In-Wall Dehumidifier combines advanced Bi-Polar Ionization Technology with powerful moisture control to enhance indoor air quality and protect properties from damage. Designed for both new and retrofit installations across multifamily, hotel, student housing, and residential settings, this fifth-generation system effectively removes up to 33 pints of moisture per day over 1,500 square feet, ensuring a comfortable and healthy living environment. Its quiet operation and easy installation process make it an ideal solution for managing indoor humidity levels, preventing mold growth, and eliminating airborne pollutants such as bacteria, viruses, pollen, and odors, converting them into harmless water vapor without producing ozone. Bi-polar ionizer – UL 2998 Validation Badge for Zero Ozone Emissions Quiet and Easy Installation Stand Alone – Independent of HVAC Systems Hangs ON WALL Hands-Free and Tankless – drains into existing plumbing Standard 120V plug-in or Hard Wire Capable Washable Air Filter – MERV Minimal Maintenance LED Maintenance Light Reminder R-32 Refrigerant Tamper Proof Hard Wire or standard 120V plug-in Internal Condensate Pump Available Additional Accessories: Condensate Pump and External Sleeve. *This unit directly replaces the Innovative Dehumidifier IW25-4 In-Wall Dehumidifier and features an increased 33 pints per day and R32 refrigerant.
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Innovative Dehumidifier Condensate Pump for IW25-5 In-Wall Dehumidifier
The Condensate Pump for the IW25-4 in-Wall Dehumidifier is the perfect solution for scenarios where condensate needs to be pumped farther away from the unit. (the IW25-4 comes with an 8 ft hose) For added convenience, the pump is designed to fit inside the unit and comes with a 21 ft hose. Powerful enough to reach plumbing lines up to 21 feet away with a maximum of 10 degrees of upward grade. The diameter is 1/4".
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Santa Fe Condensate Pump Kit 4022220
Designed to remove excess condensate, the pump is powerful enough to pump vertically more than 12 feet with an overall maximum distance of 20 feet. Ideal for rerouting excess condensate away from humidifiers themselves. Compatible with Santa-Fe Advance, Advance90, Advance100, Advance120, Classic, Compact70, Impact 105, Impact155, Ultra-Aire 70H, 98H, XT 155H, XT 205H
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Innovative Dehumidifier IW25-5 On-Wall Dehumidifier
The Innovative Dehumidifier IW25-5 On-Wall Dehumidifier combines advanced Bi-Polar Ionization Technology with powerful moisture control to enhance indoor air quality and protect properties from damage. Designed for both new and retrofit installations across multifamily, hotel, student housing, and residential settings, this fifth-generation system effectively removes up to 33 pints of moisture per day over 1,500 square feet, ensuring a comfortable and healthy living environment. Its quiet operation and easy installation process make it an ideal solution for managing indoor humidity levels, preventing mold growth, and eliminating airborne pollutants such as bacteria, viruses, pollen, and odors, converting them into harmless water vapor without producing ozone. Bi-polar ionizer – UL 2998 Validation Badge for Zero Ozone Emissions Quiet and Easy Installation Stand Alone – Independent of HVAC Systems Hangs ON WALL Hands-Free and Tankless – drains into existing plumbing Standard 120V plug-in or Hard Wire Capable Washable Air Filter – MERV Minimal Maintenance LED Maintenance Light Reminder Tamper Proof Hard Wire or standard 120V plug-in Internal Condensate Pump Available Additional Accessories: Condensate Pump and External Sleeve *This model directly replaces the discontinued Innovative Dehumidifier IW25-4 On-Wall Dehumidifier. It features and increased 33 pints per day and R32 refrigerant.
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Santa Fe Classic Vertical Series Dehumidifier
The Santa Fe Classic Vertical Series Dehumidifier is ideal for basements and other finished spaces up to 2,500-2,900 square feet. This high-capacity dehumidifier is engineered to remove up to 110 pints or 13.75 gallons of water daily, keeping your space dry and comfortable. The vertical configuration of this unit makes it ideal for basement applications. Its high-capacity blower ensures optimal air movement, moving air in a way that no small conventional unit can. Additionally, the Santa Fe Classic Vertical Series Dehumidifier is designed to operate at low temperatures with proper airflow, making it energy efficient and cost-effective. The MERV-13 filter provides superior air filtration, ensuring clean and healthy air in your living space. The optional duct kits and condensate pumps provide multiple installation options, giving you greater flexibility when setting up the unit in your home.
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AlorAir Storm SLGR 1250X Smart WI-FI Yellow Dehumidifier with Pump
The AlorAir Storm SLGR 1250X WiFi Yellow has a foldable handle and wheels, as well as onboard storage for the power cord and condensate hose. This unit removes 125 PPD@AHAM, using only 8.1 Amps, and weighs a mere 81.6 lbs. The Storm SLGR 1250X has 300 CFM of airflow, a built-in pump, and MERV-8 Filter.
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ALORAIR Smart Wi-Fi LGR 1250X Large Industrial Commercial Dehumidifiers with Pump
Ideal for water damage restoration projects, its high-efficiency rotary compressor ensures maximum moisture extraction, up to 264 pints per day (125 PPD AHAM), at the lowest running cost. The Storm LGR 1250X is the right dehumidifier to tackle water damage restoration projects of all scales and is perfect for industrial, commercial, and personal use, designed with professional-grade performance and portability. This dehumidifier has an operating temperature range of 33.8-105 degrees F and processes air at up to 325 cubic feet per minute (CFM). The water pump basin is attached to a 20' hose for the removal of condensate across wide spaces.This dehumidifier has a 20' power cord for access to the power supply across large spaces.
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AlorAir LGR 850X WI-FI 180 Pint Commercial Dehumidifier with Pump
The Storm LGR 850X High-Performance Commerical Dehumidifier, the roto-molded polyethylene housing, is dent-resistant and has superior durability.Ideal for water damage restoration projects, its high-efficiency rotary compressor ensures the maximum moisture extraction, of up to 180 pints per day (85 PPD AHAM), at the lowest running cost. The Storm LGR 850X is the right dehumidifier to tackle water damage restoration projects of all scales and is perfect for industrial, commercial, and personal use, designed with professional-grade performance and portability. This dehumidifier has an operating temperature range of 33.8-105 degrees F and processes air at up to 210 cubic feet per minute (CFM). The water pump basin is attached to a 20' hose to remove condensate across wide spaces. This dehumidifier has a 20' power cord for access to the power supply across large spaces.
Condensate Pump by Santa FeWhat are the two types of condensate pumps?
There are two main types of condensate pumps: gravity-fed pumps and pump-assisted pumps.
Gravity-fed pumps: These pumps rely on gravity to move water from the collection pan to a drain or discharge point. They're typically installed in attics or other high points in the home, where the water can naturally flow downwards.
Pump-assisted pumps: These pumps use a motor to move water from the collection pan to a drain or discharge point. They're typically used in areas where gravity-fed pumps aren't practical or efficient.
Some of the most common condensate pumps on the market today have a two-stage switch that helps to ensure that the condensate liquid does not accumulate near your HVAC equipment. During the first stage, the pump will be activated once the condensate liquid reaches the designated level. Suppose the pump does not activate due to malfunction, blockage, or some other problem, and the condensate liquid continues to rise to a higher level. In that case, a second stage switch is engaged where the pump is either shut off, or an alarm triggered to alert the homeowner that something is wrong with the system.
All condensate pumps on the market today are fully automatic. Furthermore, smart condensate pumps on the market today can connect to your smart home automation hub to send alerts on malfunctions or blockage directly to your smartphone.
How do you install a condensate pump?
Installing a condensate pump requires a fair amount of electrical and plumbing knowledge. If you want to attempt to install the condensate pump on your own, you must first locate the outlet port where the water exits on your HVAC equipment. Next, you must attach the proper-size PVC pipe that will move the water from the outlet port down into the condensate pump. It is important that the pump needs to be lower than the outlet port so that this drainage can happen via gravity. Next, attach plastic tubing between the exit port of the condensate pump and the other end to the nearest drain.
Check out this YouTube video for a complete explanation of the installation of a condensate pump.
Condensate Pump by Little GiantHow often should a condensate pump run?
The frequency with which a condensate pump cycles on and off varies widely depending on the circumstances. Expect somewhere between four and several dozen cycles per day. A condensate pump should never run continuously.
Your condensate pump's cycle frequency depends on the relative humidity levels of your home, where your HVAC equipment is located, the type of HVAC equipment attached to, and other similar issues. For example, suppose you have installed a humidifier on your furnace. In that case, the condensate pump may cycle every 4-5 minutes during winter when cold exterior temperatures and the humidifier working at a 50 percent duty cycle lead to more significant condensation. In ordinary circumstances, however, a condensate pump should run less frequently (4-5 times per day during the winter).
How do you clean a condensate pump?
Condensate pumps can become clogged by dirt, debris, algae, or other items that can impede the pump's pump's ability to remove condensate liquid from around your HVAC equipment. To clean your condensate pump, you will need to inspect the condensate pump for water, disconnect the PVC tubing connected to the reservoir, rinse the reservoir, and remove any noticeable clogs. Make sure to reconnect the drain lines correctly to avoid unwanted water damage in the future.
Little Giant Condensate Pump, AMRE SupplyWhat happens if my condensate pump fails?
If your condensate pump fails, water will begin to accumulate in the collection pan, potentially causing damage to your HVAC system and home.
One of the most obvious signs that your condensate pump is no longer working is when you notice pools of liquid around your HVAC equipment where the pump is located. This means the pump is not moving the condensate liquid, which has overflown the reservoir. Another way to discover that your condensate pump is not working is when your air conditioner, furnace, or boiler will not turn on. Many HVAC manufacturers incorporate this safety measure to help prevent the pump's water reservoir from overflowing and creating puddles. The excess liquid continuously released around your home could quickly lead to mold and mildew damage.
Santa Fe Condensate PumpHow much do condensate pumps cost?
You can find decent-quality condensate pumps for around $100 to $200.
We sell the Santa Fe condensate pump kit at Rise for $134. This pump is designed to remove excess condensate and can pump vertically more than 12 feet with an overall maximum distance of 20 feet. It is ideal for rerouting excess condensate away from humidifiers. If you have to move condensate further distances, or if you also have to replace drainage lines, you should expect to pay significantly more.
How do you maintain a condensate pump?
Condensate pumps are generally pretty reliable, but doing some simple maintenance is essential to prolong their lifespan. Once you have disconnected the condensate pump, a simple bottlebrush can be used to the openings where drain lines connect. Make sure to remove any debris and algae. Also, unclogging any visible blockages and water rinsing can help keep your pump clean.
Once the pump is dry, you can use compressed air to remove dirt, dust, and other debris, especially around the pump motor vents. If algae continuously plug up your condensate pump, consider purchasing algae tabs and placing those in the reservoir. This inhibits the growth of algae, thus reducing the risk of problems. Before starting up the pump again, make sure to pour clean water through the opening in the reservoir to activate the pump. As you do this, you can also check for leaks in the pump and connections.
How long do condensate pumps last?
A condensate pump can easily last 20-30 years with proper care and maintenance.
Make sure to clean regularly, use algae tabs in your reservoir, and disconnect the pump immediately if you notice it running constantly. These maintenance tasks will prolong the lifespan of the pump.
Understanding the importance of condensate pumps and how they work is crucial for maintaining the efficiency and safety of your HVAC system. Regular maintenance and inspection by a professional HVAC technician can ensure your condensate pump is functioning correctly and prevent potential damage to your home. If you're experiencing any issues with your condensate pump, don't hesitate to call a professional for assistance.
Article By: Tobias Roberts
Tobias runs an agroecology farm and a natural building collective in the mountains of El Salvador. He specializes in earthen construction methods and uses permaculture design methods to integrate structures into the sustainability of the landscape.