
Open 24 Hours
Emergency Service
Financing Available
With Approved Credit
Meet The Owners

Richard Yarolin
Rich is founder & co-owner of Thermodynamix which he founded 20 years ago under the original name: Westchester Air Systems. He has been in this industry for over 40 years. He is very passionate about space and space travel. On his days off Rich enjoys traveling, boating, fishing, and doing different activities with his family.

Michael Yarolin
Mike is co-owner of Thermodynamix. He is second-generation in the trade with over 20 years of experience in the HVAC industry. His favorite sports teams are the Yankees and the Minnesota Vikings. When he is not at the office Mike likes to go hiking, rock climbing, weight training and spend time with his family.
At Thermodynamix we are committed to Your Family's Comfort
We specialize in servicing, maintaining, replacing, and installing complete heating and cooling systems. We serve all of Westchester, Putnam Valley, Rockland County and Connecticut areas. Our entire staff is dedicated to providing top-quality service at an affordable price.
Our customer’s 100% satisfaction is our #1 goal! Thermodynamix LLC HVAC is your go-to provider for residential and commercial heating and cooling systems. Our technicians are constantly being trained in the latest heating and cooling brands available. Our entire staff is dedicated to providing you with the highest level of service to make your experience with us hassle-free and enjoyable.
Our mission is to be the premier HVAC company in our market, providing honest and fair services at an affordable price.
Meet Our Service Technicians
Jimmy started in the refrigeration industry in 1982. Eventually he moved to in Rhode Island where he worked in A/C, heating, and refrigeration for 10 years. After returning to NY, Jimmy continued working in HVAC for Danson and T.M. Faiella Heating and Cooling for over 20 years until they were acquired by Thermodynamix. Jimmy has over 35 years of experience as a service technician.
Jimmy - Service Technician
Gerardo has four years of HVAC experience as a service technician and installer. He is a very detail oriented and hardworking problem solver with great teamwork and leadership skills. On his free time, he likes to find new restaurants to try, travel, being on the water and supporting his favorite sports teams the Yankees, Rangers, NY Redbulls and Giants.
Gerardo - Service Technician
Chris has 24 years of experience being an HVAC service technician. He is frequently mentioned in customer reviews for being responsive, knowledgeable, and courteous. On his down time, he enjoys playing golf, spending time with his family and watching his favorite football team the Cowboys on TV. Chris also serves his community, for 29 years, as a 3rd generation volunteer fire fighter.
Chris - Service Technician
Meet Our Comfort Advisors

Tony
comfort advisor
Tony recently joined Thermodynamix with over 6 years of HVAC experience. He takes great pride in his approach to getting very familiar with the customer's needs and what their goals are as to present the proper HVAC equipment solution to keep their family comfortable throughout the seasons. On his off time, he enjoys spending time with his family traveling to explore new hiking & kayaking destinations making time for carpentry projects and indulges in all types of music, art and outdoor activities.
Meet The Office

Danny
service manager
Danny has been in the industry for about 14 years. He is newly transitioned from service/installer to service manager. His role is managing the service techs as well as ordering material for job sites. His hobbies outside of work are playing sports such as softball, dodgeball, and flag football. He loves hanging out with family and friends.

Gina
Office manager
Gina is responsible for accounts receivable/payable and human resources. She started her journey with Thermodynamix when she joined Rich's first company, Westchester Air Systems, in 2006. She managed the company’s finances and nurtured its growth into Thermodynamix. Overall, Gina has been in the HVAC industry for over 17 years. Gina has been an experienced bookkeeper since 1994. When she is not working, she likes to cook and spend time with her family, shop 'til she drops, travel, and experience the world.

Danielle
Maintenance coordiNATOR
Danielle is the head receptionist in the office & our best Customer Service Representative. She is the main contact for scheduling service and creating a maintenance plan for your equipment. If you have any questions regarding what a maintenance plan includes or if you are interested starting a preventative maintenance plan with us, she is your go to girl!

Lisette
Customer service representative
Lisette is one of our customer service representatives that handles scheduling estimates, service calls and installations. She has been in the customer service realm of work for over 10 years. If there were three things she could do all day it would be to cook, do makeup and play with her dog, Judah!
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