Unlimited Comfort at your Service
Call for reliable AC replacement in Raleigh NC.
Call Us Today:  (919) 875-2114
Services Unlimited Heating and Air, Inc. has certified technicians to take care of your AC installation near Cary NC.
Unlimited Comfort at your Service
Unlimited Comfort at your Service
Call for reliable AC replacement in Raleigh NC.
Call Us Today:  (919) 875-2114
Services Unlimited Heating and Air, Inc. has certified technicians to take care of your AC installation near Cary NC.
Unlimited Comfort at your Service

Air Distribution System Design

Good Duct Design Increases Efficiency

This Air Distribution System Design: Good Duct Design Increases Efficiency (PDF) fact sheet explains how good duct design increases efficiency of air distribution systems for central heating and cooling. The air distribution system may reach an efficiency of 80 percent or more for little or no additional cost, resulting in homeowner savings of $50 to $200 or more each year in heating and cooling costs. The fact sheet describes duct design objectives, types of supply duct systems (such as trunk and branch, spider, radial and perimeter loop systems) as well as return duct systems (including multiple-room return and central return systems), duct materials and duct and register locations. It also provides duct design methods, design recommendations and key design elements.


U.S. Department of Energy - Energy Efficiency and Renewable Energy
trust our techs with your next Heat Pump repair in Durham NC
Contact Information
 
Address:  1241 Wicker Dr.
Raleigh NC 27604
Phone:  (919) 875-2114
Fax:  (919) 875-2115
Schedule Service
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Payment Options
 
For AC in Raleigh NC, we accept most major credit cards.
 
We accept check for Heat Pump repair service provided in Cary NC.
We accept cash for Cooling repair service provided in Durham NC.
 
We accept all major credit cards, cash, checks, and debit cards. We also have financing options. Contact us for details.
Financing Options
 
Business Hours
 
24 Hour Emergency Service Available
7 Days a Week  |  365 Days a Year
Monday:  7:30am - 5:00pm
Tuesday:  7:30am - 5:00pm
Wednesday:  7:30am - 5:00pm
Thursday:  7:30am - 5:00pm
Friday:  7:30am - 5:00pm
Saturday:  Emergency Service Only
Sunday:  Emergency Service Only
Monday - Friday:  7:30am - 5:00pm