
About Us
For over 20 years, Douglas Heating Supply has been a trusted name in heating and cooling solutions. We provide top-quality HVAC products, expert repairs, professional installations, and comprehensive maintenance services for both residential and commercial customers.
Our CARE CLUB maintenance plans help keep your furnace, air conditioner, and heat pump running efficiently year-round, preventing costly breakdowns and extending the life of your system.
For you to live comfortable, always, is our priority—today and for years to come!
Meet The Team

Jeff Henckel
GENERAL MANAGER
Leading our team is Jeff, whose expertise and dedication ensure we
uphold our promise:
Live Comfortable. Always.

Diane Rasmussen
BOOKKEEPER
Behind every successful business is a strong financial foundation, and Diane, plays a key role in keeping our operations running smoothly.

With years of hands-on experience in installation and servicing, Josh ensures every system is set up for optimal performance, efficiency, and long-term reliability.
Josh Sills
LEAD INSTALLER

With a passion for problem-solving and top-tier customer service, he makes sure to keep your home or business comfortable all year round.
Joe Herbert
TECHNICIAN
At Douglas Heating Supply, we’re more than just experts in heating and cooling—
we’re the friendly faces behind your home’s comfort. So next time you need a repair, a new installation,
or just some honest advice, you know who to call.
Come say hi—we promise, we’re pretty cool. (Or warm, depending on what you need!)
FAQ
Do you offer installation services?
Yes, we install and service air conditioners to keep your home or business comfortable year-round.
Where do you provide services?
We service Kalamazoo, Portage, Battle Creek, Plainwell, Richland, and surrounding areas, ensuring top-quality HVAC solutions for homes and businesses.
Do you offer emergency repair services?
Yes, we provide urgent repair services to get your heating or cooling system back up and running.
Do you offer warranties on your products and services?
Yes, our products come with manufacturer warranties, and we provide service warranties for our installations.
Do you offer maintenance plans?
Yes, we have maintenance plans to keep your system running efficiently and extend its lifespan.
How do I know if my air conditioner needs servicing?
Signs include weak airflow, unusual noises, bad odors, or higher energy bills. Regular servicing helps prevent breakdowns.