Facebook

HVAC Blog

Home > HVAC Blog

What to Know About C-Wire If you’re upgrading your HVAC thermostat, it’s a good thing to find out in advance if your existing system provides a c-wire. Today’s smart thermostats provide a great deal more options and convenience such as wifi connectivity and a bigger, brighter, multi-functional control screen. These improvements typically draw more electricity than the existing thermostat you’re replacing. The c-wire (“c” stands for “common”) is an important extra electrical wire that enables continuous 24-volt power to operate newer smart thermostats. If you don’t have one installed with your existing model, you’ll probably need to have it installed in order to adequately power the new unit.

Read More »

Smart Thermostats , c-wire , thermostat issues , thermostat problems

Satisfied Clients

Our Number One Goal

Flurish


★ ★ ★ ★ ★

"We replaced a heat pump hvac system, got pricing from 4 hvac contractors. Lots of choices and levels but Hartman was head and shoulders above the others in cost and quality. They have experienced Technicians and great Owners, we highly recommend them!"

Greg Eley
(Google Review)

★ ★ ★ ★ ★

"My experience was excellent. The furnace runs very quietly and before when it would come on and I was sleeping it came on so loud it would wake me up. I'm so pleased with Hartman Brothers. My AC stopped working I thought it had something to do with my thermostat but Hartman's checked things out and found out someone turned the power off in the garage."

Carol Perkins
(Google Review)

★ ★ ★ ★ ★

"Great group of very intelligent people working for Hartman. They all do a wonderful job keeping everything running. Thank you"

Nancy S.
(Google Review)

★ ★ ★ ★ ★

"Josh was very pleasant. He explained what happened with my Furnace in the cold weather and why it happened. He had the Furnace working again quickly."

Lisa B.
(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)

★ ★ ★ ★ ★

"Hartman Brothers are quick and on time with everything working great. They keep my furnace working very well!"

Herbert G.
(Google Review)

★ ★ ★ ★ ★

"Hartman Brothers Heating & Air have once again outdone themselves. Their expertise in servicing my HVAC was remarkable. Their skill and professionalism were clear in their workmanship. They arrived punctually, armed with an extensive knowledge base that was clearly reflected in their approach. The outcome? All my units are operating like well-oiled machines. I highly recommend their services for anyone in need of superior quality work."

Heather Shively
(Google Review)

★ ★ ★ ★ ★

"Hartman Bros representatives are wonderful! Caleb is super great at answering all my questions and explaining everything so I feel very much at ease. I definitely recommend Hartman Bros for heating and AC installation and servicing. Their employees are super polite and very helpful and pleasant! Great job as always!"

Renee C.
(Google Review)

Contact Us

Call Today to Schedule with Us