★ ★ ★ ★ ★
"Hartman Brothers are quick and on time with everything working great. They keep my furnace working very well!"
— Herbert G.
(Google Review)
★ ★ ★ ★ ★
"Our AC went out and they sent someone out within a few hours and the problem was fixed quickly. With our service membership we also got a discount so the repair price was reasonable. I was very impressed with how quickly and professionally they fixed the problem especially in the middle of summer when they must get a lot of AC calls. Will definitely continue to use Hartman Bros."
— Jane Christensen
(Google Review)
★ ★ ★ ★ ★
"Furnace wasn’t working on Friday morning after thanksgiving. Called Hartman Brothers. They were able to get here in the early afternoon. They diagnosed the problem and got it fixed quickly. Communication was excellent. Price was more than I expected, but understand that parts for 20+ year old furnace are not inexpensive."
— Brad S.
(Google Review)
★ ★ ★ ★ ★
"Serviceman on time, friendly, polite, professional. I will recommend Hartman Bros. To anyone who asks if I know good company for heating/ac. Very glad I chose them."
— Patricia Stine
(Google Review)
★ ★ ★ ★ ★
"Just signed up for a planned service agreement to keep my AC and Furnace tuned up. Great value and great service!"
— Stefan Hartman
(Facebook Review)
★ ★ ★ ★ ★
"Hartman Brothers are the best people to work with, always dependable! Caleb helped us set up a schedule on our thermostat and helped us hook up our phones to the thermostat also!"
— Jerry J.
(Google Review)
★ ★ ★ ★ ★
"I was very pleased with the quickness of them getting here and fixing my thermostat so I could turn on my heat. Professional and communication was great! Thank you!!"
— Lucinda E.
(Google Review)
★ ★ ★ ★ ★
"Hartman Brothers service technicians are always very prompt, professional and knowledgeable. Excellent products and service."
— Bill F.
(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.
