SHI Cheat Sheet 2026

The 30 highest-yield SHI facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. How do SHI professionals maintain digital competency? → Through ongoing training and staying current with technological advances
2. What maintenance should be done annually? → Check key system components and fluid
3. What is the primary factor evaluated during a solar site assessment to determine energy production potential? → Solar radiation availability (insolation)
4. Which hazard is common during installation of solar thermal systems? → Falls and thermal burns
5. What is the first step in risk assessment for Solar Heating Installer Certification professionals? → Identifying potential hazards and vulnerabilities in the specific context
6. What type of collector is best for high-temperature applications? → Evacuated tube collector
7. What should be done after completing system installation? → Commission and test the system
8. What distinguishes a peer-reviewed study from other publications? → Independent experts evaluated the methodology and conclusions before publication
9. Why is periodic inspection important in solar thermal systems? → To identify and address system issues early
10. What is a common symptom of a malfunctioning controller? → No system response or incorrect data
11. What is the benefit of standardized digital reporting in Solar Heating Installer Certification practice? → It ensures consistency, enables comparison, and facilitates compliance
12. Which factor most significantly degrades solar thermal collector performance on an otherwise sunny, clear day? → Partial shading from a nearby obstruction
13. Which of the following factors does NOT typically affect the available solar resource at an installation site? → Magnetic declination of the site
14. What is a risk register used for in Solar Heating Installer Certification practice? → Tracking identified risks with their status, controls, and owners
15. How does increasing collector tilt angle above the local latitude value typically affect seasonal performance of a solar thermal system? → Improves winter performance while reducing summer performance
16. What role does documentation play in Solar Heating Installer Certification client communications? → It creates clear records of discussions, decisions, and agreements
17. Which tool is commonly used to identify and quantify shading obstructions during a solar site assessment? → Solar Pathfinder
18. What component circulates fluid in an active solar thermal system? → Pump
19. Why is a performance test conducted? → To confirm system efficiency and functionality
20. Which code typically applies to plumbing aspects of solar installations? → IPC
21. How should an SHI professional approach a novel situation not covered by standard procedures? → Apply foundational principles, assess risks, consult resources, and document decisions
22. What is a corrective action in Solar Heating Installer Certification quality systems? → A systematic response to eliminate causes of nonconformity and prevent recurrence
23. What is the primary purpose of a shading analysis during a solar site assessment? → To identify obstructions that will reduce collector performance throughout the year
24. What is the purpose of flushing the system? → To clear buildup and sediment
25. What is 'solar insolation' as used in solar thermal site assessments? → The amount of solar radiation energy received on a surface over a period of time
26. How often should risk assessments be reviewed in SHI practice? → At regular intervals and whenever significant changes occur
27. What does a 'peak sun hour' represent in solar resource evaluation? → The total daily solar insolation equivalent to 1,000 W/m² for one hour
28. How do SHI professionals integrate compliance into daily practice? → By embedding compliance requirements into standard operating procedures
29. What is the benefit of interdisciplinary collaboration in Solar Heating Installer Certification practice? → It brings diverse expertise and perspectives that improve outcomes
30. How should an SHI professional respond to discovering a compliance violation? → Report promptly, investigate root cause, and implement corrective actions