Sources
Why do oversized boilers short-cycle?
- ACCA, Manual S Residential Equipment Selection (product page)
https://www.acca.org/standards/technical-manuals/manual-s - Wes Davis (ACCA Technical Services), Building Safety Journal, January–February 2009: Table 1, boilers 100–140% of total heating load, section 2-2
https://media.iccsafe.org/news/eNews/2009v6n8/hvac.pdf - CIBSE Journal, "Oversizing matters: effect of boiler oversizing on efficiency" (April 2022)
https://www.cibsejournal.com/technical/oversizing-matters-effect-of-boiler-oversizing-on-efficiency/ - PNNL Building America Solution Center, Condensing Boilers
https://basc.pnnl.gov/resource-guides/condensing-boilers - U.S. Boiler Company, "Buffer Tanks: When to Use Them with Condensing Boilers" (February 12, 2024)
https://www.usboiler.net/buffer-tanks-when-to-use-them-with-condensing-boilers-and-why-they-are-beneficial.html - Energy Vanguard, "6 Ways Your Oversized HVAC System Makes Things Worse" (Allison Bailes, February 24, 2026)
https://www.energyvanguard.com/blog/6-ways-your-oversized-hvac-system-makes-things-worse/