Coziahr Heating & Air Conditioning a top, Mom and Pop operation

Published in The Daily Nonpareil on January 5, 2014
Story written by Tim Johnson/Staff Writer

Team Coziahr

Coziahr Heating & Air Conditioning, 1409 Third Ave., offers sales, installation and service of heating and air conditioning systems and components, as well as home energy assessments and radon testing.

And they do it all with two employees: owner Dave Coziahr and his wife, Luanne.

“We would be the epitome of a Mom and Pop heating and air conditioning business,” Dave Coziahr said. “Luanne goes with me on all my runs. We’re a team.”

Many customers begin their relationship with the business when they need a new system.

“We have access to all brands, but we primarily sell Luxaire,” Coziahr said.

“Our customers are interested in being comfortable and saving energy,” he said.

Saving energy on heating and cooling is more complicated than it sounds, Coziahr said.

“As an industry, we’re moving toward what’s called ‘home performance,’” he said.

This approach recognizes that energy efficiency depends on more than just the heating and cooling equipment itself, Coziahr said. It is affected by the duct system, insulation, windows, seals and more.

“We’ve got to look at the house as a system,” he said.

Just putting in a high-efficiency furnace won’t make your system efficient, Coziahr said.

“If the ductwork is not properly sealed or insulated, you can lose as much as 40 percent of your heat,” he said.

Then there’s home insulation, windows and other factors.

Coziahr, like utility companies, can do an energy assessment for a homeowner and help them determine what improvements could made and which ones would be the most cost-effective. He can measure the temperature, carbon monoxide and oxygen coming out of the furnace and test the temperature and air flow coming out of the registers to see how much heat and air pressure are being lost in the ducts.

Coziahr is a certified Home Energy Rating System rater certified Building Energy Assessment Professional and North American Technician Excellence-certified.

“With all of the certifications I hold, I probably have close to 150 hours (class time) of continuing education a year,” he said. “The heating and air conditioning industry is changing so rapidly I have to do that. If customers have the right kind of thermostat, you can control your furnace from your phone – and you can get messages if your furnace isn’t working right.”

Coziahr became a certified radon measurement specialist in 2013 and is in the process of becoming a certified radon mitigation specialist, he said. Radon, a colorless, odorless radioactive gas that occurs naturally, is a widespread problem in the Midwest.

“Every home should be tested – especially in Iowa and Nebraska,” he said.

If the level measures more than 4 picocuries per liter of air, the EPA recommends doing another test – preferably a long-term one. If the average of the two tests is higher than 4 pCi/L, the EPA recommends installing a
radon mitigation system.

Coziahr Heating & Air Conditioning was founded in 1936 by Coziahr’s grandfather, Walt Coziahr Sr.

“My father (Walter Coziahr) grew up in the business no different than me,” he said.

Walter Coziahr attended college and then served in the military. He returned in 1959 to work with his father in the family business. Walt Coziahr Sr. died later that year, leaving his son in charge of the business.

Dave Coziahr grew up in Council Bluffs and graduated from Thomas Jefferson High School. He earned a bachelor’s degree in construction engineering-mechanical in 1984 and went to work for his dad full time.

“This is all I’ve done my whole life,” he said. “My dad retired in 1999 and, at that point, that’s when I became the sole owner of the company.”

Luanne Coziahr grew up in Cedar Rapids and graduated from Kennedy High School. She earned a bachelor’s degree in plant pathology and seed and weed science at Iowa State.

Said Dave, “We met on the football field at Iowa State.”

“In the marching band,” added Luanne.

Keeping you comfortable since 1936.


1409 3rd Avenue
Council Bluffs, IA 51501

Mailing Address:
2644 Avenue D
Council Bluffs, IA 51501

Have Questions?
Call: (712) 323-5782
Text: (402) 660-4974


Emergency Services Available 24/7


Monday  7:00am to 5:00pm
Tuesday  7:00am to 5:00pm
Wednesday  7:00am to 5:00pm
Thursday  7:00am to 5:00pm
Friday  7:00am to 5:00pm

Evenings and Weekends
by appointment

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