If you own a hot water heating system, you know how important it is to keep everything running smoothly. That's where the Watts ETX-15 Expansion Tank comes in – it's like having a safety net for your plumbing system that prevents costly damage from pressure buildup.
When water heats up, it expands. In a closed-loop heating system, that expansion has nowhere to go, causing pressure to build up inside your pipes and water heater. Without proper pressure relief, this can lead to pipe bursts, valve failures, or even catastrophic water heater damage. The relief valve can only do so much before it becomes overwhelmed.
The Watts ETX-15 solves this problem elegantly. This 2.1-gallon expansion tank acts as a cushion, absorbing the excess water volume when your system heats up. As water expands, the tank compresses the air inside, preventing pressure from reaching dangerous levels. It's a passive system that works automatically without any electricity or maintenance required.
Crafted from durable steel with a 60 psi maximum working pressure rating, this expansion tank is designed to handle the demanding conditions of residential heating systems. The construction ensures it won't corrode or fail when you need it most, giving you reliable protection season after season.
Installing the Watts ETX-15 is one of those smart home maintenance tasks that pays for itself many times over. Whether you're protecting a new system or upgrading an older one, this tank provides the safety margin that can prevent thousands of dollars in water damage. It's the kind of preventative maintenance that gives you confidence that your heating system will continue working reliably for years to come.
