★ ★ ★ ★ ★
"Extremely pleased with their work! When I say I'm a picky customer, I really mean it (I'm a Training Manager for an HVAC manufacturer). These guys showed up precisely on time, were extremely courteous and professional, and did an outstanding job on my system. They were very careful moving the equipment to my mechanical room (not an easy task), did a very neat job on the install, and cleaned up so that everything was spotless when they left. I even gave them an opportunity to do a "shortcut" on my install, but they refused and said "that's not the way we do it." It was easy to tell that these techs took PRIDE in the work they were doing. I can't even begin to tell you how much I would recommend this small business from New Haven, IN to do any HVAC work. If you want a courteous, professional install at a reasonable price, call Hartman Bros!"
— Jay Hammond
(Google Review)
★ ★ ★ ★ ★
"Hartman Bros does a good job They installed my Lenox system and maintain it every year. They have always been responsive and professional. I will use them for my next system."
— Judy Gleason
(Google Review)
★ ★ ★ ★ ★
"Ked did a good job on both the furnace inspection and the Aprilaire humidifier installation. Knowledgeable and courteous."
— Bob
(Google Review)
★ ★ ★ ★ ★
"Service was on time and the service agent was personable and knowledgeable. I have used this company for over 15 years and would recommend them to everyone."
— Donald Marvar
(Google Review)
★ ★ ★ ★ ★
"Love these people! We bought a brand new furnace and ac a year ago. For some crazy reason something happened to the ac Sunday when it was 91 degrees . I had a service guy here Sunday and Monday... Vicky was fabulous through it all and the guys were wonderful. They ended up working after hours and got it all fixed... Thank you from the bottom of my heart and my puppies. We're cool again!!"
— Fonda M Jones-Soards
(Facebook 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)
★ ★ ★ ★ ★
"Very happy with service. From my original phone call to the technician arriving, all were professional, helpful and friendly. Reasonable prices. I will definitely use again."
— Jackie Franze
(Google Review)
★ ★ ★ ★ ★
"Great Heating and Air Company to work with who are always professional, courteous, fairly priced and even help in a timely manner when things break at the most inconvenient time."
— Melissa Philebaum
(Google Review)
The return air ducts are a key component of your HVAC system's air distribution network, but it's easy to overlook their importance since they don't send out heated or cooled air. To help you understand the vital role they play in maintaining your comfort and keeping the HVAC system working properly, let's take a closer look at what the return ducts actually do.
The benefit of a central air system is that it allows your entire home's temperature to be controlled from a single thermostat, with a single HVAC installation. But it also comes with a serious drawback: the ducts that deliver air to your living areas can develop leaks or tears that bleed off conditioned air before you can make use of it. When your ducts pass through crawl spaces and other passages outside of your living areas, this can lead to 
Indiana homeowners depend on their HVAC systems to stay warm and comfortable through the heating months. Considering that home heating accounts for 45 to 55 percent of the typical energy budget, there is also financial incentive to maintain a well-operating HVAC system with a seasonal inspection.
