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Or contact Wood Heating Solutions at:


The Hyprotherm FLRH-85
is rated at 95,243 BTU
with a 85 gallon water tank.
Heats up to 2,300 sq ft.


The Hyprotherm FLRH-100
is rated at 112,050 BTU
with a 100 gallon water tank.
Heats up to 2,800 sq ft.


The Hyprotherm FLRH-185
is rated at 207,293 BTU
with a 185 gallon water tank.
Heats up to 5,182 sq ft.


The Hyprotherm FLRH-265
is rated at 296,933 BTU
with a 266 gallon water tank.
Heats up to 7,400 sq ft.


The Hyprotherm FLRH-300
is rated at 336,150 BTU
with a 301 gallon water tank.
Heats up to 8,400 sq ft.


The Hyprotherm FLRH-350
is rated at 392,175 BTU
with a 350 gallon water tank.
Heats up to 9,800 sq ft.


The Hyprotherm FLRH-400
is rated at 451,562 BTU
with a 403 gallon water tank.
Heats up to 11,288 sq ft.

The Hyprotherm outdoor wood boiler is a front loading furnace with more water capacity and a larger firebox then any other furnace in its class.

These wood furnaces feature fireboxes that are 3/8” thick. The water jacket bottom is also 3/8” thick with the sides and top being 3/16”. All of these front loading furnaces come with large 24” x 24” fuel fill doors and removable ash pans to make ash removal simple. They have a flat cast grate and each furnace is pre wired with only one connection to a power supply necessary, making them basically plug and play. Each comes with; lock down vault assembly door latch, two 1” supply and two 1” return nipples. Also includes a water level sight gauge and a digital thermostat to control the combustion blower.

These models are for commercial use only and can be fitted with a shaker grate system upgrade. Call to find out more details today.

The standard insulation on our furnaces is:

2″ of Morgan Super Wool with an R value of 56.8 on the tops and fronts and 3″ of Knauf ET Blanket + 1/4″ of Solar Guard for a combined R value of 23.1 on the rest of the furnace

The cold weather package is R-88.23 on tops and fronts and 68.4 on the rest of the furnace and is available for an additional $325.00

You can find out more insulation information including video demonstrations by going to the insulation page.

Hydronic Installation Manual