🔥 10:1 Turndown Modulating Condensing Boilers (96% Thermal Eff), Gas Therms

Commercial Condensing Boiler Turndown & Efficiency Calculator

Model commercial high-efficiency stainless steel condensing hydronic boilers: calculate 10:1 to 20:1 burner modulation turndown (eliminating short-cycling standby losses), latent heat recovery from flue gas condensation (95-98% thermal efficiency at 100°F return water), natural gas therm savings, and retrofit payback.

1. Project & Operating Inputs

Annual Baseline Heating Gas Spend ($ / Year e.g. $42,000/Yr)

Baseline Non-Condensing Boiler Efficiency (% e.g. 78% Standard)

New Condensing Boiler Efficiency (% e.g. 96% Condensing)

Turnkey Condensing Boiler Plant Retrofit CapEx ($)

2. Financial Breakdown & Yield

96% CONDENSING BOILER EFFICIENCY

5-Year Natural Gas Savings

Condensing Boiler Payback ROI

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost