Tanks

HVAC Tanks for Heating, Cooling, and Refrigeration Systems

HVAC tanks support pressure control, fluid expansion, refrigerant storage, and system stability in heating, cooling, hydronic, and refrigeration equipment. Depending on the application, a tank may be used to absorb expanded fluid, maintain system pressure, protect connected components, or store liquid refrigerant during changing load conditions.

Furnace Part Source carries HVAC replacement tanks for residential, commercial, and light-industrial systems, including hydronic expansion tanks, thermal expansion tanks, diaphragm tanks, bladder tanks, compression tanks, liquid receiver tanks, and related replacement tank components.

Common HVAC Tanks We Carry

Common tank types for HVAC and refrigeration systems include:

• Hydronic expansion tanks for closed-loop heating and chilled water systems that need pressure control as fluid heats and cools.
• Thermal expansion tanks for managing expanded water volume in heating and water-based HVAC applications.
• Bladder and diaphragm expansion tanks for separating the system fluid from the air cushion inside the tank.
• Compression tanks for older or specific hydronic heating and cooling system designs.
• Liquid receiver tanks for refrigeration and HVAC systems that need liquid refrigerant storage.
• Receiver and refrigerant tanks for select cooling, refrigeration, and service applications.
• Replacement tank assemblies for equipment-specific HVAC repair and maintenance needs.

How to Choose the Right HVAC Tank

The correct HVAC tank depends on the system type, tank function, capacity, pressure rating, connection size, fluid or refrigerant type, and installation requirements. A tank used for hydronic heating is not the same as a liquid receiver tank used in refrigeration, so it is important to confirm the application before ordering.

For best fit, compare:

• Original tank part number or model number
• Brand and manufacturer series
• Tank volume or gallon capacity
• Connection size and connection type
• Pressure rating and temperature range
• System type, such as hydronic heating, chilled water, refrigeration, or HVAC service
• Fluid or refrigerant application
• Mounting style, tank orientation, and available installation space

If you are replacing an existing tank, check the label on the installed tank and compare it with the product listing. If the label is damaged or difficult to read, use the equipment model number, system specifications, and photos of the tank connections to help identify the correct replacement.

Expansion Tanks vs. Receiver Tanks

Expansion tanks and receiver tanks serve different purposes. An expansion tank is commonly used in hydronic heating, chilled water, or thermal expansion applications to help absorb expanded fluid and maintain system pressure. A receiver tank is commonly used in refrigeration or cooling systems to hold liquid refrigerant as operating conditions change.

Because these tanks are not interchangeable, always match the replacement tank to the system design and the original equipment specifications. Tank volume, pressure rating, connection size, and application type should be verified before ordering.

Brands and Replacement Tanks Available

Furnace Part Source carries HVAC tanks and related replacement components from brands such as Zilmet, Copeland, Xylem Bell & Gossett, and other HVAC manufacturers. Available products may include hydronic expansion tanks, thermal expansion tanks, stainless steel expansion tanks, liquid receiver tanks, refrigerant tanks, and equipment-specific tank assemblies.

Brand name alone is not enough to confirm compatibility. Always check the product details against the original tank part number, system type, gallon capacity, pressure rating, and connection requirements.

Need Help Matching an HVAC Tank?

Not sure which HVAC tank you need? Gather the part number, brand name, tank capacity, connection size, pressure rating, equipment model number, and application type before ordering. Photos of the existing tank label, piping connections, and equipment data plate can also help with part matching.

Check each product listing for current price, availability, and shipping options. If you are replacing a discontinued, damaged, or hard-to-identify tank, contact Furnace Part Source for help finding a compatible replacement.

HVAC Tanks FAQs