Boiling on surfaces of fuel assembly components such as the fuel cladding and burnable absorber rods can lead to deposition of corrosion products (crud) which can have many negative consequences. These include increased corrosion, deposition of boron leading to power shifts, and the build-up of ex-core radiation fields from transport of the activated corrosion products. To gain a better understand of crud deposition and its effects, the Westinghouse Annular Thermal Crud Hydraulic (WATCH) Loop has been used to grow simulated Boiling Water Reactor (BWR) deposits. While the loop has successfully simulated BWR core inlet conditions, the need for rapid testing of longer nuclear core components led Westinghouse to upgrade the loop to enable thermal hydraulic testing of full-height fuel assembly components with high accuracy. The loop was also upgraded to cover a wider range of temperatures and pressures, allowing testing under Pressurized Water Reactor (PWR) conditions. Detection of boiling on component surfaces has been one of the key requirements of the testing in this loop. We have developed pressure noise correlation techniques for boiling detection in the WATCH loop and have also applied them in a sister testing facility at the Churchill laboratory, the WALT loop. This paper reports on application of the pressure noise correlation technique for boiling detection, and loop designs that facilitate detection of boiling using pressure noise correlation.