HVAC SYSTEM DESIGN

BY LICENSED ENGINEERS

SERVING RALEIGH-DURHAM
AND THE GREATER TRIAD AREA
[GREENSBORO WINSTON-SALEM & HIGH POINT]

MEET THE ENGINEERS

William Timberlake

Licensed Engineer in NC & VA specializing in residential heating and cooling systems. Bill focuses on proper equipment sizing and duct system design to ensure comfort and code compliance. His detailed inspections and calculations, based on on-site surveys, deliver accurate, standards-based results.

mOLLY TALMADGE

Licensed Mechanical Engineer in NC & VA with a focus on residential HVAC system design. A U.S. Naval Academy graduate and 10-year Navy Civil Engineer Corps veteran, Molly brings precision and code compliance to every project. As a Wrightsoft instructor, she combines field experience with technical training to deliver accurate, standards-based solutions.


WHAT IS A LOAD CALCULATION?

Determines the heating and cooling needs of a home to ensure proper sizing of HVAC Equipment & Ductwork

load calculation

Manual J - Heating & Cooling Load Calculations

unit sizing

Manual S - Selecting the right size equipment



DUCT DESIGN

Manual D - Designing a correct Duct System that delivers the right air flow to every room

ENGINEERED FOR YOUR HOME

 

Verify if the heating and cooling system is the right size needed

 

Why it's best to have the heating & cooling system designed right the first time

 

Requires Manual J, S & D for NEW HOME BUILDS

Requires Manual J & S for EXISITING HOMES

 

Find answers to common questions about humidity, hot/ and cold rooms, air quality, energy bills & much more!

North Carolina PE #037107

Virginia PE #0402029260
CALL US @

919-655-5828 
EMAIL US @

BILL.TIMBERLAKE.PE@GMAIL.COM

mOLLY.TALMADGE.PE@GMAIL.COM

© Copyright WTTRE 2025
WILLIAM T. TIMBERLAKE RESIDENTIAL ENGINEERING