Case Studies


Study 1 - DOW Coring


RTV Silicone Plant

ConDex System utilized to heat boiler make up water from 50°F up to 180°F with recovered energy from boiler exhaust. System recovers 6,800,000 BTU/hr on average with peak recoveries of over 8,000,000 BTU/hr.

  • Annual average fuel savings: $606,000.00
  • Annual CO2 emission reduction: 4,010 Tons
  • Annual NOx emission reduction: 2.63 Tons
  • 3,120,000 gallons/year of water recovered
  • Payback: 8 months



Study 2 - Toyota Motor Manufacturing Corporation


Automotive Assembly Plant

ConDex System recovers waste heat from three boilers and reapplies the energy to heat incoming boiler water from 107°F to 177°F. System recovers 2,744,000 BTU/hr on average with peak recoveries of over 3,900,000 BTU/hr.

  • Annual average fuel savings: $205,000.00
  • Annual CO2 emission reduction: 1,127 Tons
  • Annual NOx emission reduction: 0.74 Tons
  • Payback: Less than 1.5 years - Installed



Study 3 - London District Energy


Central Steam Plant for City

ConDex condensing economizer system utilized to recover waste energy from boiler and gas turbine exhaust. Unique "Dual-stage" heat recovery unit heats boiler make up water from 40°F up to 190°F and also heats loop water up to 210°F for the absorbtion chiller process. System recovers 10,000,000 BTU/hr on average and peak recoveries of over 11,000,000 BTU/hr.

  • Annual average fuel savings: $892,000.00
  • Annual CO2 emission reduction: 5,897 Tons
  • Annual NOx emission reduction: 3.87Tons
  • Payback: Less than 1 year - Installed



Study 4 - Bunge North America


ConDex system recovers waste energy from two boilers with existing economizers and preheats 180 GPM of boiler make up water from 55°F up to 180°F. This system recovers 11,200,00 BTU/hr on average with peaks of over 15,000,000 BTU/hr.

  • Annual average fuel cost savings: $1,025,000.00
  • Annual CO2 emission reductions: 6,510 Tons
  • Annual NOx emission reductions: 4.28 Tons
  • 7,791,000 gallons per year water recovered
  • Payback: Less than 6 months - Installed



Study 5 - Pacific Gas & Electric


Central Steam Plant

ConDex system utilized to heat boiler make up water from 55°F up to 187°F with recovered energy from multiple boilers exhaust gas, after economizers. System recovers 7,800,000 BTU/hr on average, with peaks of over 10,000,000 BTU/hr.

  • Annual average fuel cost savings: $696,000.00
  • Annual CO2 emission reductions: 4,592 Tons
  • Annual NOx emission reductions: 3.0 Tons
  • Payback: Less than 1 year



Study 6 - University of Guelph


ConDex system recovers waste heat from boiler exhaust and provides heat for campus district heating loop and boiler make up water. The ConDex system heats the district-heating loop up to 190°F and heats boiler make up water from 60°F to 195°F. The system recovers and reapplies over 6,000,000 BTU/hr.

  • Annual average fuel cost savings: $535,000.00
  • Annual CO2 emission reductions: 3,432 Tons
  • Annual NOx emission reductions: 2.25 Tons
  • Payback: Less than 1 year



Study 7 - William Osler Hospital


Dual staged ConDex system separately heats both boiler make up water and domestic hot water for hospital. The make up water is heated from 45°F up to 190°F and the domestic water is heated from 45°F up to 140°F. System revocers 5,160,000 BUT/hr on average with peaks of over 7,000,000 BTU/hr.

  • Annual average fuel cost savings: $480,000.00
  • Annual CO2 emission reductions: 3,209 Tons
  • Annual NOx emission reductions: 2.11 Tons
  • Payback: Less than 8 months