Centennial Plumbing, Heating & Air Conditioning has over 20 years’ experience in the heating & cooling and plumbing business. We are versed in furnace repair and replacements. Our team of expert HVAC technicians can skillfully repair and replace your boiler too. Don’t get confused by the various monikers used to define the same thing. Hot water heaters and boilers are hydronic systems that use hot water to warm your house.