TL;DR: Boiler installation in Utah County runs $4,000–$10,000+ installed based on industry estimates, sized by BTU heat-loss calculation rather than the old unit’s label. Condensing boilers at 90%+ AFUE cut fuel use meaningfully over 80% units. Call Utah Service Pros at 801-874-8479.
How is a replacement boiler sized?
Correct sizing starts with a heat-loss calculation — square footage, insulation, windows, and Utah Valley’s winter design temperature — not by copying the outgoing boiler, which decades of insulation upgrades have usually left oversized. Oversized boilers short-cycle; right-sized ones run long, quiet, efficient burns.
Is a condensing boiler worth the premium?
Condensing units capture exhaust heat that standard boilers vent away, reaching 90–96% AFUE versus ~80–85% — a fuel saving that compounds every winter. They cost more up front and need a condensate drain and compatible venting, which the install quote covers. On a 15–20-year service life, most Utah County homes come out ahead.
What does installation include?
Removal of the old unit, the new boiler set and piped, expansion tank, circulators and zone valves as designed, combustion venting, city permit and inspection, and commissioning with the water chemistry checked — scale protection matters as much for boilers as for water heaters here. Explore radiant floor heating while the system is open, or start at the boiler hub.
Expert-reviewed by Utah Service Pros. Last updated June 2026.