★ ★ ★ ★ ★
"Great work and very reasonable prices! Technicians were very careful and efficient in their work."
— John Edmonds
(Facebook 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)
★ ★ ★ ★ ★
"We purchased our home just a few days ago and the heat was not working, and we were in single digit temps in this area. Josh, our tech, came out and checked everything out and discovered it was a programming issue on the digital thermostat. He set it correctly and heat is now working. The level of service of Hartman is phenomenal! Vickie in the office deserves a big thank you as the house was at 45 when I called and she saw to it that we were worked into their busy service request schedule."
— Judith Botts
(Google Review)
★ ★ ★ ★ ★
"Always great service and great prices. Thank You Hartman Brothers."
— Keith Gay
(Facebook Review)
★ ★ ★ ★ ★
"We installed our new HV/AC and on demand water heater last year.
The result is money saved year around. No huge water heater taking up space.
And a great crew at Hartmans to service our unit in years to come. Great folks to do business with. Thank you!"
— Phil S.
(Google Review)
★ ★ ★ ★ ★
"Technician..courteous..informative..super experience! The best."
— John P.
(Google Review)
★ ★ ★ ★ ★
"We could not be happier with our service, estimate for a new system and most of all offering to but coolant in the system to give us AC until new system is installed."
— Lanna Benjamin
(Google Review)
★ ★ ★ ★ ★
"My hot water heater stopped working.
I called Hartman Brothers and had a Plumber out the same day. once the part came in from the manufacturer, the plumber was back out within a couple hours!
How wonderful it is to have hot water again!!!!"
— Holly H.
(Facebook 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.
