★ ★ ★ ★ ★
"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)
★ ★ ★ ★ ★
"Caleb was the technician who came to check out our furnace. He immediately figured out the problem. I highly recommend him"
— Han H.
(Google Review)
★ ★ ★ ★ ★
"Really appreciate the way they worked us into their schedule when we needed them. I called them first thing in the morning and they were there before noon."
— Paul S.
(Google Review)
★ ★ ★ ★ ★
"Outstanding service from start to finish. I had an outside spigot dripping, I was afraid with the cold weather it would freeze up. Called and Roger was able to fit me in within a few hours. I have used Hartman Brothers for over 30 years for my heating and central air systems. Happy that I can call them for plumbing issues as well."
— Dawn T.
(Google Review)
★ ★ ★ ★ ★
"Caleb was very professional in how he handled the service. I like how messages were sent updating the arrival time."
— Lane
(Google Review)
★ ★ ★ ★ ★
"Great service, very professional! Technicians are very experienced."
— Aaron Rumple
(Facebook Review)
★ ★ ★ ★ ★
"Pay to have furnace and air conditioner inspected each year. The technicians are knowledgeable and thorough with explaining all checked out."
— Dennis L.
(Google Review)
★ ★ ★ ★ ★
"Great service ontime for my appt Gentleman was very friendly. He was very informative on what's going on with my unit. And I was happy with my experience with the company"
— Kendra Wetzel
(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.
