Hot Flush, Inc.

Hot Flush, Inc., a for-profit Subchapter S corporation based in New Hampton, Iowa, manufactures and sells fuel oil heat exchanger (FOHE) flushing systems and hot flusher equipment to the Department of the Air Force as a full-and-open prime contractor, with no subcontracting footprint and no SBA set-aside posture.

Hot Flush operates exclusively in specialized aerospace ground equipment manufacturing, producing fully automated hot flush cart systems and portable FOHE cleaning equipment used to remove contaminants from fuel oil systems on F-15, F-16, and other tactical aircraft. The company's product line centers on the HotFlush Model HF11 AF series, which operates on single-phase 240-volt electrical power and includes 28-micron screens, 10-micron test papers, 10-micron reservoir filters, operator manuals, maintenance documentation, and warranty coverage. Recent representative awards include a $37,148 sole-source purchase order from Air Force Materiel Command (awarded June 22, 2026, performance due August 31, 2026) for a fully automated HotFlush Model HF11 AF F15 system with delivery to Eglin Air Force Base; a $33,898 firm-fixed-price purchase order from the Air National Guard (awarded September 13, 2024) for a hot flusher and accessories to perform on- or off-aircraft FOHE flushing; and a $98,961 purchase order from Pacific Air Forces (awarded August 8, 2022) for FOHE flushers.

Customer concentration tracks heavily to Air Force commands and subordinate units. The Air National Guard anchors the footprint with four awards valued at $194 thousand combined; Pacific Air Forces, the generalized Air Force, U.S. Air Forces in Europe and Africa, and Air Combat Command round out the active set. These five customer segments account for 91% of the combined potential value across all awards. All ten named contracts in the recent portfolio are purchase orders under $100 thousand ceiling value, with most falling into the $32,000–$34,000 range. One 2022 Air National Guard award carries a small-business set-aside designation; the remaining eleven awards are full-and-open procurements. The source does not indicate participation on government-wide vehicles, BPAs, or IDIQs.

Activity is episodic rather than steady. The vendor recorded one award in 2020, five in 2022, one in 2023, three in 2024, and one in 2026, with a combined obligated value of $506 thousand across all twelve prime awards spanning the portfolio. No awards appear to reach ultimate completion in the next twenty-four months; the most recent completion date in the source is August 31, 2026.