Nature's Comfort Outdoor Boilers

RSI Boilers - Nature's Comfort Authorized Dealer

Outdoor Wood Boilers
Temperature Monitoring
Parts and Accessories
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NCB-175 Outdoor Wood Boiler


MSRP $5,980
Coal Model $600 extra

The NCB-175 is a little larger than the 120. It is a good model to go with if the 120 is just on the edge of it's capacity
Draft air enters from the back into the firebox under the grates to get a hot clean burn. As with all models that Nature's Comfort builds, it has an easy read stainless steel float gauge.
It is rated to be able to heat up to a 4000 sq ft house with good insulation or 3500 sq ft if also heating domestic hot water.
These ratings are with well seasoned hardwood and just a general reference.
In southern Wisconsin they should be reduced be about 33% with average wood.
Green wood would have further reduce capacity


  • 220,000 BTU
  • Heating Area: Up to 4,000 sqft
  • Unit Size: 67L x 50W x 85H
  • Weight: 1733 lbs
  • Water Jacket: 175 gal, 7 gauge (3/16)
  • Firebox: 13.5cu/ft (29.25" Cylinder 36"D),
  •  1/4" thick
  • Fuel Door: 27W x 25.5H
  • Blower: 148cfm

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Please Contact us for more info or with any questions
Philip Howard / RSI
109 Commercial St / PO box 341
Arlington, WI 53911