Welcome to Nature's Comfort!
TOP NEWS: Now available! The SM-H60 solar water heater!

Heat most or all of your domestic hot water through the summer and reduce fuel usage during winter by adding a SunMor SM-H60 to your boiler FOR ONLY $1995!*
(*boiler not included)
We have a wide range of outdoor solid fuel hydronic furnaces to meet your needs!
High Efficiency Downdraft
Gasification Wood Boilers
GT-6000 - $8,980
250,000 BTU, 250-gallon water tank, 6,000 sq ft.*
45" x 78" x 83" tall, 3,000 pounds
Firebox Sizes Cubic Feet Height Width Depth
GT-6000 15.8 28" 28" 36"
Steel thickness Water Jacket Firebox
GT-6000 7ga. (approx. 3/16") ¼"
Updraft Wood Boilers
(available for COAL also for an additional cost)
NCB-120 - $5,280 ON SALE $4,980
160,000 BTU, 120-gallon water tank, 3,000 sq ft.*
42" x 63" x 86" tall, 1652 pounds
NCB-175 - $5,780
220,000 BTU, 175-gallon water tank, 4,000 sq ft.*
46 1/2" x 60" x 90" tall, 1817 pounds
NCB-250 - $6,780
300,000 BTU, 250-gallon water tank, 6,000 sq ft.*
46 1/2" x 78" x 90" tall, 2260 pounds
NCB-325G - $8,480
460,000 BTU, 325-gallon water tank, 10,000 sq ft.*
49 1/2" x 85" x 92" tall, 2400 pounds
NCB-575 - $18,980
840,000 BTU, 600-gallon water tank, 20,000 sq ft.*
88-1/2" x 105" x 112" tall, 6100 pounds
*Will heat up to (x)sq ft (This must include all heated areas of home as well as basement.) with proper installation, properly insulated building and when properly seasoned hardwood is used (20% moisture content). Deduct a minimum of 500 sq ft if heating domestic hot water.
Firebox Sizes
Cubic Feet Description Size Opening Ash Pan
NCB-120 15.0cu/ft oval 25.5"W x 31"H x 36"D 21.75"W x 22"H 39" X 11.75"X 4"
NCB-175 13.5cu/ft 29" cylinder 29.25" x 36"D 25.75"W x 17.75"H 39" X 11.75"X 4"
NCB-250 20.5cu/ft 29" cylinder 29.25" x 54"D 25.75"W x 17.75"H 39" X 11.75"X 4"
NCB-325G 28.5cu/ft oval 30"Wx36"H x 54"D 27"W x 25.5"H 39" X 11.75"X 4"
NCB-575 89.0cu/ft 60" cylinder 60" x 60"D 52"W x 30"H 68" X 34.375"X 8"
Steel thickness Water Jacket Firebox
NCB-120 10ga. (approx. 1/8") ¼"
NCB-175 7ga. (approx. 3/16") 3/8" or ¼"**
NCB-250 7ga. (approx. 3/16") 3/8" or ¼"**
NCB-325G 7ga. (approx. 3/16") ¼"
NCB-575 ¼" 3/8"
**Firebox thickness depends on option ordered by customer