Douglas Heating Supply Water Heaters

Douglas Heating Supply Co. is a full line wholesale distributor of water heaters, water heater parts,  heating equipment, HVAC parts and supplies.  We sell to licensed HVAC, Plumbing, and Electrical contractors exclusively.  Douglas Heating Supply Co. has been serving Kalamazoo, Mi and the surrounding areas with great service and price.  We proudly offer the Goodman, Payne and Miller brands as our main lines of heating and air conditioning equipment as well as many other prominent brands.  Our product offerings are complete for both residential and commercial applications.  Everything you will need for all types of installations is at our location. 

At Douglas Heating Supply Co., offering you the best product lines and the highest level of customer service is of primary importance.  Give us a call any time and explore all the products and services we have available for you today.  Better products and better customer service is a reality, and it’s just one phone call away!  Contact us today.  We look forward to serving you and your customers. 

Water heaters from Douglas Heating Supply Co. include natural gas, liquid propane and electric models with standard and high-capacity tanks. An electric water heater is equipped with screw-type immersion elements and an over-temperature protector with automatic shutoff valve. Upgrading to a tankless water heater can lead to savings because it is not constantly reheating water. You'll also find the water heater parts you need to maintain tank and tankless systems at Douglas Heating Supply Co in Kalamazoo, Mi!

We Supply Water Heater Parts for most makes and models, wholesale prices to the public!

  • Electric Point of Use Water Heaters
  • Electric Tankless Water Heaters
  • Electric Water Heater Controls
  • Electric Water Heaters
  • Gas Tankless Water Heaters
  • Gas Water Heater Controls
  • Gas Water Heaters
  • Water & Gas Connection Kits
  • Water Detectors
  • Water Heater Accessories
  • Water Heater Elements
  • Water Heater Pans
  • Water Heater Vents



Wholesale to the Public. Satisfaction Guaranteed!


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