Thermal expansion tanks are typically installed in conjunction with storage water heaters, but are they needed with tankless water heaters? This issue can sometimes be overlooked. Let’s look at the specifics. Code Requirements Section 607.3 of the 2012 International Plumbing Code (IPC) provides the requirements for controlling pressure caused by thermal expansion. The requirements contained … Continue reading Are Thermal Expansion Tanks Needed With Tankless Water Heaters?