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I. General Information
A.
Terminology In This Manual
Boiler:
Refers to the Nature’s Comfort boiler.
Furnace:
Refers to the existing indoor gas or oil fired unit which heats the air or radiant water
heat for the home.
B.
Clearance to Combustibles Required
Top, Front, Rear and Sides:
36”
Flooring:
Non-Combustible
C.
Boiler Dimensions & Specifications
Type of fuel:
Only hard, cordwood that is cut & split, seasoned for 1-2 years.
Location:
Outdoor use only.
Electrical Rating:
115 VAC, 5A (15A max when convenience outlet is used), 60 HZ
Min. Circuit Breaker:
15 Amp
Draft Blower:
146 CFM, 115 VAC
Water Pump:
115 VAC, 2A max.
Chimney:
6” inside diameter
NCB-175
220,000 BTU, 175-gallon water tank, 4,000 sq ft.*
67L x 50W x 85H, 1733 pounds
NCB-250
300,000 BTU, 250-gallon water tank, 6,000 sq ft.*
85L x 50W x 85H, 2114 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
Model Description Width Depth Ash Pan
NCB-175
29” cylinder
28”
36”
39” X 11.75”X 4”
NCB-250
29” cylinder
28”
54”
39” X 11.75”X 4”
Steel thickness
Water Jacket
Firebox
NCB-175
7ga.
(approx. 3/16”)
3/8” or ¼”
**
NCB-250
7ga.
(approx. 3/16”)
3/8” or ¼”
**
**
Firebox thickness depends on option ordered by customer
Summary of Contents for NCB-175
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