As ventilation specialists, we Design, Install & Service all major brand name Heat Recovery Ventilator's & Fans.
Accessing the “whole house as a system” is where we begin. Hopefully, this website, will help you with informed decisions about your Indoor Air Quality needs.
 | Central Ventilation Systems is owned and operated by Lee J. Holden in Thunder Bay. Since 1998, several hundred local and area homes have been retrofited with high quality, heat recovery ventilators - complete with ducting - with a standard that meets modern building codes. |
Click HERE to download the ecoENERGY Retrofit grant application (Adobe PDF).
We offer 'gas-2' & 'oil-2' certified technicians to replace, repair or service gas, propane or oil heating units, up to 400,000 btu's.
Our philosophy includes an attitude of what is best for the building, bearing in mind the client’s budget. The system we design & install will remain in the building long after our client has moved on.
We address indoor air quality concerns when the following symptoms are being experienced, usually as a result of poor ventilation.
 | Excess moisture on windows: Foul smelling indoor air. The home may lack controlled air exchange. The minimum recommended is 15 cubic feet per minute of fresh air per occupant as recommended by ASHRAE www.ashrae.com |
 | Blackened corners: This is an indicator of poor insulation, high humidity, mold development and possible lack of ventilation/air circulation. |
 | More re-occuring and frequent respiratory ailments: This can be a result of contaminated or dusty air with lack of quality filtration and/or lack of properly controlled ventilation. |
Put our experience in residential energy improvements to work for you.
Speak to Lee today at 1-807-626-8022 and deal with a certified ventilation designer/installer & heating technician.
Whole House Ventilation, Heating and Retrofit quotations are available upon request.
Easily complete our website questionnaire to better inform us about your concerns. We will arrange for a personal evaluation/consultation and give you an estimate.
Ask us if you qualify for the
Attention New Home construction - we do design reviews.
