At Hydronic Systems, we know we are preaching to the choir about the responsibility our profession has in considering how our work impacts the environment.  Working to minimize our carbon footprint, reduce air emissions and protect the land and environment for future generations must always be top of mind.  At the same time, we all expect to be able to live, work and play in comfort.  With this in mind, the work of Stellar Construction, Inc. caught our eye.

Owned by Mark Carmouche and Mark McFarland, Stellar Construction designs and builds some of the finest luxury homes under their premier brand, “Chastel”.  We typically do not work in the residential market, but the commitment by Stellar Construction to bring the highest levels of function, comfort and energy efficiency that Oklahomans have ever seen enticed us to jump on board.

Located in the Greywing subdivision in south Oklahoma City, this 3,700 sq. ft. home is one of the first geothermal residences to be built in the state that utilizes a combination of geothermal heat pumps and radiant floor heating systems. This combination delivers the high levels of comfort their homebuyers expect as well as the highest levels of energy efficiency, according to Carmouche.


During the winter months, the homeowners and their guests will experience true comfort every day in this perfectly controlled environment courtesy of the 4,800-foot-system of piping that winds back and forth in the floors of the house and garage.  Hidden beneath the floor surface and connected to the geothermal system, the radiant tubing provides the heat for the home using the same continuous water supply that operates the other HVAC equipment.

“The radiant flooring adds an additional 10 to 15 percent of efficiency to the entire system in addition to the already 50 to 60 percent of efficiency the geothermal system provides.  All of this occurs while delivering the maximum level of comfort that our luxury homeowners expect.” says Carmouche.

Geothermal and Radiant Flooring System Hidden in Garage Closet

Geothermal and Radiant Flooring System Hidden in Garage Closet

Today’s society is a much more environmentally conscious one, but we still want all of the comforts provided in our modern lives.  In Fact, according to the Demand Institute, energy efficiency ranks number one among housing concerns.The radiant floor system and components used in the home are manufactured by REHAU, Taco, Nexus, and WaterFurnace.

The combination of geothermal and radiant heating stands up to both demands.  “Typically during the cooler months of the year, the temperature of a concrete or tile floor is 65 to 66 degrees. With radiant floor heat, the floor temperature is 79 to 80 degrees. The system is designed to automatically control the temperature of the floor to provide maximum comfort in the home.” explained Carmouche.

Rehau Radiant Heating System used as the Primary Heat Source

Rehau Radiant Heating System used as the Primary Heat Source

Hydronic Systems came into the picture because Carmouche knew exactly what he wanted to do but he needed someone to work with the manufacturers and realize the solution. “This is a complicated system, and I couldn’t have done it without Mark Boozer, Rick Simon and Daniel Mason. Their help and advice gave me a greater level of confidence that we could deliver on the finished product while at the same time break some new ground in the Oklahoma home building market,” says Carmouche.

WaterFurnace Geothermal Heat Pumps Located in the Attic.

WaterFurnace Geothermal Heat Pumps Located in the Attic.

“When Mark came to us and explained what he wanted to do, Rick and I got excited. Not only was it a new challenge but it was one where we saw the opportunity to be part of an industry leading, energy efficient solution for building owners,” said Mark Boozer, president of Hydronic Systems.

Boozer also remarked that there are a number of different applications for this system that accomplish both heating and cooling needs. “Stay tuned to Water Worx because next month we are going to tell you how our work with the engineers at PSA will keep the snow leopards cool at the zoo,” said Boozer in closing.

To learn more about the REHAU radiant floor heating and cooling system call Hydronic Systems at (405) 528-7867 in Oklahoma City, (918) 382-6978 in Tulsa or (479) 310-5404 in Fayetteville, AR. To inquire about a geothermal/radiant floor system in a home, call Stellar Construction, Inc. at (405) 317-5026.


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