A TPR valve is a safety device that is located on the water heater. The name stands for Temperature Pressure Relief. If temperatures and pressures inside of the water heater become too high, this small valve will open to allow steam and excessively hot water to be released from the water heater. This protects the water heater from damage, and protects the occupants from hazards a damaged water heater will bring.
In addition to having this valve, there should also be a way to direct where the water and steam release to. This is achieved with a Blow Off Pipe. A blow off pipe is simply a 3/4 inch pipe made of heat-resistant plumbing materials (such as copper or CPVC) that connects to the TPR valve and travels to a safe and visible location, either within 6 inches of the floor at the water heater, or to an exterior vent. By directing where this steam releases to, the occupants can identify that the TPR has tripped, and be able to shut off the water heater without coming into contact with scalding temperatures.
Oftentimes, the blow off pipe on the TPR valve may be noted to be reduced from the proper ¾ inch to a smaller size. A TPR valve should always have a clear, unobstructed path for steam to travel when needed. Reducing this pipe does not allow for the valve to discharge at it’s full velocity, increasing the risks of pressure buildup inside the water heater. This situation is also present when the blow off pipe is run in a way that does not allow water to flow freely through it, such as traveling upwards out of the valve.
Ensuring that the TPR valve is present and the blow off pipe is correctly installed will go a long way in keeping you and your family safe in your home.
William is a rare breed: a Florida native with deep roots in both the community and the construction industry. He began his career working alongside his father, Robert, in real estate renovations, gaining firsthand knowledge of homes from the inside out. In 2015, he brought that experience to Hope Home Inspections, where he continues to deliver comprehensive, reliable inspections with a commitment to honesty and detail.
William holds multiple advanced certifications that position him as one of the most qualified inspectors in the region. He is a Certified Master Inspector (CMI), Licensed Florida Home Inspector, Licensed Mold Assessor, Licensed Drone Operator, and Licensed WDO Inspector. Additionally, he is a Certified Pest Control Operator, Certified Commercial Property Inspector, and Radon Measurement Specialist—allowing him to provide a full spectrum of residential and commercial inspection services.
When he’s not on the job, William spends his time enjoying the Florida lifestyle with family and friends. As a licensed boat captain, he can often be found on the water fishing or boating. He’s also a proud father to a healthy baby boy, who inspires him to maintain the highest standards in everything he does.
With over a decade of hands-on experience and a long list of credentials, William is a trusted expert for buyers, sellers, and real estate professionals all across Florida.