{"product_id":"watts-0212002-expansion-tank-10-gal-hydronic-heating","title":"Watts 0212002 Expansion Tank 10 Gal Hydronic Heating","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WATTS 0212002 is a hydronic expansion tank designed to absorb pressure fluctuations in closed-loop heating systems. With a 10-gallon acceptance capacity housed in a 25-gallon carbon steel tank body, this unit handles the thermal expansion of water as system temperatures rise. The tank measures 16 inches in diameter and 33 inches in height, with a 1\/4-inch port connection. The exterior carries a primer coat finish. Licensed plumbers and HVAC technicians install this tank as part of boiler-based or radiant heating systems where pressure relief and volume control are required.\u003c\/p\u003e\n\u003cp\u003eThis expansion tank is suited for residential and light commercial hydronic heating applications. It installs on the supply or return side of a closed-loop boiler system to prevent excessive pressure buildup that would otherwise trip the pressure relief valve. The 25-gallon tank volume and 10-gallon acceptance capacity make it appropriate for mid-sized heating systems. The primer-coated carbon steel construction provides durability in mechanical room environments where the tank is typically wall-mounted or floor-set near the boiler.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e10-gallon acceptance capacity controls pressure fluctuation in closed hydronic loops\u003c\/li\u003e\n  \u003cli\u003e25-gallon carbon steel tank body with primer coat finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e16-inch diameter and 33-inch height fits standard mechanical room installations\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch port connection for system integration\u003c\/li\u003e\n  \u003cli\u003eDesigned for residential and light commercial boiler and radiant heating systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation expansion tank for closed-loop hydronic heating systems requiring a mid-capacity pressure buffer vessel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or HVAC technician in accordance with local plumbing codes and IFGC guidelines. Shut down and depressurize the boiler system completely before connecting or replacing the tank. Verify the tank pre-charge pressure matches system design pressure before placing the system back into service. Do not over-torque the port connection on the carbon steel fitting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAcceptance Capacity\u003c\/strong\u003e: 10 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank Volume\u003c\/strong\u003e: 25 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 33 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePort Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Primer Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 90.38 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WATTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 0212002\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WATTS","offers":[{"title":"Default Title","offer_id":51542701211954,"sku":"0212002","price":1944.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1f7c0a2858fa790d76a3d393c98c66b1_6f9b8d10-e765-4b3d-b2df-b7f0aeba6eda.jpg?v=1785904734","url":"https:\/\/voomisupply.com\/products\/watts-0212002-expansion-tank-10-gal-hydronic-heating","provider":"Voomi Supply","version":"1.0","type":"link"}