Hydronic Components

Components to install and compliment hydronic and steam boilers. Boiler accessories include pressure and shut-off relief valves, low water cut-off, expansion tanks, circulator pumps, LP kits (for conversion from natural gas to propane), fittings, flanges and trim kits.

  • We have a wide selection of products from popular brands such as Bell & Gossett, Burnham, honeywell and Weil-Mclain. Some of our common valve types include thermostatic mixing valves, pilot gas valves, sweat union mixing valves and bypass valves 

  • Argo controls provide an easy way to interface between the thermostat and air handler. We carry control relays will control multiple zones of heating/cooling and provide priority switching for domestic hot water. 

  • Rather than taking the time to locate and purchase the pieces separately, the boiler trim kit gives you all the accessories needed for a boiler installation. Our trim kits from Bell & Gossett give you everything you need to ensure a smooth installation. 

  • Expansion tanks may be required as part of your system because of thermal expansion. When water is heated, it expands, when cooled, it contracts. As that water is heated, the pressure may go from 60 psi to as high as 150 psi. Any pressure over 80 psi is considered to be excessive and can cause damage to piping, fixtures and any appliances connected to the water system. Expansion tanks have rubber bladders inside and since air can be compressed, the rubber bladder inside the tank is filled with air. As the water gets heated it increases its volume and displaces into the thermal expansion tank. When the water pressure is relieved (i.e. through a faucet being opened) the air bladder pushes the water back out of the expansion tank, making it ready for another cycle. This greatly reduces the stress on the entire water system and everything connected to it.

  • Circulator pumps as used in hydronic systems are usually electrically powered centrifugal pumps. As used in homes, they are often small, sealed, and rated at a fraction of a horsepower, but in commercial applications they range in size up to many horsepower and the electric motor is usually separated from the pump body by some form of mechanical coupling. The sealed units used in home applications often have the motor rotor, pump impeller, and support bearings combined and sealed within the water circuit. We have a wide variety of terrific options from brands such as Bell & Gossett, Grundfos and Wilo.

  • All the fittings and flanges you need to aid in your install or repair. We carry products from popular brands such as Uponor, Weil McClain and Wilo.

  • Convert your system from natural gas to liquid propane with propane conversion kits, repair kits and maintenance kits from Burnham and Weil-McClain

  • Air & dirt separators are designed to eliminate air and separate debris associated with start-up and maintenance of any hydronic system. The design incorporates a skim valve, used to eliminate floating debris, a removable end cover for coalescing medium access, and an air vent to automatically release air from the separator.

  • We offer a broad range of McDonnell & Miller hydronic components. Some of these components include low water cutt offs, low pressure sensors, and electric, mechanical and universal water feeders,