Customer Support - Please email or give us a call at (416) 389-6762; if we're online you can message us via the chat box below and we'll respond asap. Please note we are not HVAC technicians; we/you may need to refer to industry, installation, or product specialists. Alternatively, Unico, Inc. can provide design and/or more detailed technical support @ (800) 527-0896 or visit them online. For Large Residential & Commercial Projects, you can build your cart online, and/or contact Dave to request assistance. Thank you for visiting, and we look forward to serving you. 
Dave Hammond
Debrani Ghosh
VP Marketing