★ ★ ★ ★ ★
"Always a tremendous experience with Hartman Brothers. I have used them for more than 25 years and gotten to know their people more like friends/family than vendors... because that's exactly how they treat their customers! Always a pleasure to deal with and their work is exceptional as a bonus. Would give them 6 Stars if it was an option."
— Scott Sproat
(Google Review)
★ ★ ★ ★ ★
"Professional and quick! Very pleased with how fast they arrived, and fixed the problem in quick order!"
— Dalton Hathaway
(Google Review)
★ ★ ★ ★ ★
"On Saturday, my water heater spewed lots of water in the utility portion of my garage. Unfortunately, my furnace was soaked. After my call to Hartman Bros., Darian arrived within the hour and dried out the furnace and re-started it. Hartman Bros. has been servicing my heating and cooling systems for over 30 years and have always been "johnny-on-the-spot" when I have had problems. I highly recommend them."
— Nancee L.
(Google Review)
★ ★ ★ ★ ★
"Hartman Brothers are quick and on time with everything working great. They keep my furnace working very well!"
— Herbert G.
(Google Review)
★ ★ ★ ★ ★
"All of the Hartman Bros employees are very polite, helpful, efficient and courteous. They always have answers to my questions. Im very happy with Hartman Bros. Caleb did an excellent job, is very polite, efficient and I highly recommend Hartman Bros!!"
— Renee Collins
(Google Review)
★ ★ ★ ★ ★
"Wonderful experience. The service technician was very polite and explained everything very clearly so glad I had them service my furnace."
— Mic Garcia
(Google Review)
★ ★ ★ ★ ★
"I have a hot water tank that's 24yr old. Brad came out to diagnose it and flush it out. Great Service! Great office staff. Great experience. I'll be calling them again!"
— Connie G.
(Google Review)
★ ★ ★ ★ ★
"I've had Hartman's install new Bryant H/Vac systems in 2 houses now and I've been pleased with the outcome at both houses. They are local, on time and reasonably priced. I've had a couple minor problems and Hartman Bros treated me fairly and took care of the issues. You don't buy 2 complete H/Vac systems from someone you don't trust or has treated you unfairly."
— Daniel Scheele
(Google Review)
Today's ductwork design principles correct thermal losses, pressure imbalances and other errors that waste energy. In the past, design and fabrication of ducts were done with the aim of minimizing costs. If you're looking to improve your home's efficiency and comfort, you should be aware of the principles of modern ductwork design below.
