Hot Water Heater Thermal Expansion Tanks


Hot Water Heater Thermal Expansion Tanks
By Scott Rogers • November 26, 2008
I suppose plumbers may have been installing thermal expansion tanks (pictured above) for years, but I first starting seeing them a few years ago, and wondered what they were and why they were being installed. A thermal expansion tank's purpose is to reduce thermal expansion that occurs when the water is heated and pressurized. Thus, if your hot water heater does not have an expansion tank, and is leaking or dripping from the pressure-relief valve, it would be wise to install a tank. The other aspect of these expansion tanks that mystified me for quite some time is that I assumed that they would be installed on the hot water line coming out of the hot water heater, but most that I observed were installed on the cold water line. As it turns out, the expansion tank can be installed either on the cold water line between the main valve and the water heater, or on the hot-water line within 3 to 5 feet of the water heater. Receive Updates by Email Recent Articles: There Are Plenty Of Types Of Houses That Exist That Just Are Not Available To Purchase Home Sales By Price Range In The City Of Harrisonburg Are You Compromising On Aspects Of Your Next Home That You Can Or Cannot Change Later? How Much Slower Are The Winter Months In Our Local Housing Market? Rockingham County and New Home Sales Drive Surge in Area Housing Market Find The Balance Between Optimistic And Realistic Home Pricing Room Size Is Difficult To Understand Solely From Real Estate Photos How Much Would You Value Not Having To Prepare Your Home For Showings? One Out Of Four Homes Is Taking Longer Than A Month To Sell Consider The Cost Of Your Planned Renovations When Planning Your Offer
Have any questions? Contact Scott Rogers at 540-578-0102 or scott@funkhousergroup.com
Based on information from the Harrisonburg-Rockingham Association of REALTORS® or its MLS, for the period Jan 1, 2000 through Nov 22, 2024 (unless otherwise noted).
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