HYDROFLEX60 Pellet Boiler

Green heating at it’s best

HydroFlex60 Green heating at it’s best, the HydroFlex60 provides up to 60,000 BTUs to your primary central heating system. Whether you currently have a hot air or a hot water system, the HydroFlex60 will save on heating costs. With it’s proven pellet burning system, triple pass heat exchanger and wireless thermostat, the HydroFlex60 will provide a warm, comfortable feeling in your home and wallet.

Growing Market
At Harman, we know you are looking for a cost effective way to heat your home while being considerate to the environment. The Harman HydroFlex60 is the answer, providing a quick and easy way to go green. HydroFlex owners notice remarkably lower energy bills since the HydroFlex uses pellets to heat water and the entire home.

Easy to Install
The HydroFlex has a small footprint which allows installation in tight areas. This unit can connect easily to any existing hot air or hot water system duct work/pipes or remotely connect to the primary unit in another area of the home. The wireless thermostat interfaces with primary unit and the HydroFlex, keeping your home at your desired temperature. This feature also gives you the flexibility to use the fuel that is most cost effective at any given time. If the fuel used in your primary system becomes less expensive, you can simply set its thermostat higher and decrease the HydroFlex setting. If pellets remain cost effective, you can keep the HydroFlex temperature at the desired setting and decrease the primary system for back up.

Responsible Heat
Pellet heat is carbon neutral. This means that heating with renewable fuels reduces the homes’ carbon footprint and makes a positive impact on our atmosphere. The high efficiency HydroFlex is an excellent source of environmentally responsible heat.


  • Patented Pellet Pro Feeder
  • Patented Pellet Pro Burn Pot
  • 120 VAC
  • 90% + Efficiency
  • Small Footprint
  • Faster ignition & recovery for quick response to heat needs.
  • 14 spiral baffled stainless heat exchanger tubes increase efficiency.
  • Electronic Temperature Control
  • Front door with window for easy ash removal, burnpot access and fire viewing.
  • Outside Air Temperature Sensor
  • Dual boiler water temperature and presssure gauge
  • Pressure Relief Valve
  • Refractory-lined firebox
  • Fiberglass insulation surrounding the entire unit
  • 3 inch pellet exhaust
  • 3/4 inch water lines


  • Wireless Thermostat
  • Direct Vent Wall Passthrough
  • Bulk Hopper (1400+ lb hopper capacity)
  • Outside Air
  • Battery Back Up



Fuel    Bio-Mass Pellets
BTU Range    0-60000
Heating Capacity    2000+ Square Feet
Hopper Capacity    160 Pounds
Flue Size    3"
Outside Air Size    2-3/8"
Weight    525 Pounds
Depth    33-1/4"
Minimum Floor Protection    36.875" x 17.125"
Height    57"
Width    21-1/4"
Feed Rate    0 to 7 pounds per hour


Clearances & Dimensions

Fuel: Bio-Mass Pellets
BTU Range: 0-60000
Heating Capacity: 2000+ Square Feet
Hopper Capacity: 160 Pounds
Flue Size: 3"
Outside Air Size: 2-3/8"
Weight: 525 Pounds
Depth: 33-1/4"
Minimum Floor Protection: 36.875" x 17.125"
Height: 57"
Width: 21-1/4"
Feed Rate: 0 to 7 pounds per hour

@ Kegerreis Stoves.