★ ★ ★ ★ ★
"Very polite man and got furnace ready for winter"
— Edith V.
(Google Review)
★ ★ ★ ★ ★
"Have used this company for many years, always excellent service."
— Charlene F.
(Google Review)
★ ★ ★ ★ ★
"Always great services. Highly recommend"
— Robert B.
(Google Review)
★ ★ ★ ★ ★
"Just had our 6 months maintenance on our furnace. Technician Ked is courteous and very thorough and always takes good care of us."
— Jeff K.
(Google Review)
★ ★ ★ ★ ★
"Rick Hartman of Hartman Brothers is a class act. He went above and beyond to make sure everything was as it should be... We would definitely recommend Hartman Brothers to everyone. Great customer service and an honest reputable business!"
— Sharon Nuerge
(Facebook Review)
★ ★ ★ ★ ★
"Hartman Brother Heating & Air is the BEST!!!! When I have an issue they immediately come to help! There employees are very friendly, kind and courtious of your home. They are well trained and have the knowledge to fix the problems in a timely manner! Way to go Hartman Brothers!!!"
— Julie Chesney
(Google Review)
★ ★ ★ ★ ★
"Professional from start to finish. Arrived on time. Installation went smoothly. Faster than expected. Very helpful from the start. Answered all questions. Communication was excellent."
— Michael T.
(Google Review)
★ ★ ★ ★ ★
"Very happy and COOL now. Caleb was super nice and seemed very knowledgeable!!! We still have a problem, but he got us up and running for the weekend after a long week of 90 degrees in our house. Hoping they send Caleb back on Monday to finish the job."
— Deb
(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.
