Silent Comfort - Newmac ~ Quiet, Clean, High Efficiency Heating Solutions

  • Top mounted controls for easy viewing
  • Front and rear return line location
  • Coil section design provides maximum heat transfer to domestic coil with extended coil section for easy service or replacement
  • Rear flue with convenient vertical connection
  • The latest in high efficiency Riello and Beckett burner technology
  • Left or right hinge mounted boiler access door
  • Open glass inspection port
  • Sixteen 2" horizontal tubes for high efficiency and easy maintenance
  • Stainless steel 12 ga combustion chamber
  • Reduced clearances to rear combustibles
  • Wet base/wet back design
  • AFUE 81-86%
  • Internal mixing baffle on return line for optimum boiler water temperature
  • Safety shut off switch on boiler access door
  • Rated output of 179,000 to 300,000 btu/h
NBR-3001
MODEL RIELLO
BURNERS
B.T.U.H.
OUTPUT
B.T.U.H.
INPUT
(USPGH)
AFUE
%
NOZZLE PUMP
p.s.i.
INSERTIO
inches
TURBULATOR
SETTING
AIR DAMPER
SETTING
DESIGN GROSS
STACK F˚
NBR3-183 F-10 183,000 NBR3-183 85.4 Delavan 1.25 x 30 B 145 4-1/2" 1.5 1.8 375
NBR3-196 F-10 196,000 NBR3-196 85.1 Delavan 1.35 x 30 B 145 4-1/2" 2 1.9 400
NBR3-216 F-10 216,000 NBR3-216 84.4 Delavan 1.50 x 30 B 145 4-1/2" 2 2.2 430
NBR3-236 F-10 236,000 NBR3-236 83.1 Delavan 1.65 x 30 B 145 4-1/2" 2.5 2.4 460
NBR3-250 F-10 250,000 NBR3-250 82.5 Delavan 1.75 x 30 B 145 4-1/2" 2.5 2.5 470
NBR3-282 F-10 282,000 NBR3-282 81.6 Delavan 2.00 x 30 B 145 4-1/2" 3.5 2.7 520
NBR3-300 F-10 300,000 NBR3-300 80.8 Delavan 2.25 x 30 B 135 4-1/2" 4 3.3 575
Model Nomenclature: NBR3 denotes NBR-3001

MODEL BECKETT
BURNERS
B.T.U.H.
OUTPUT
B.T.U.H.
INPUT
(USPGH)
AFUE
%
NOZZLE* PUMP
p.s.i.
INSERTION
inches
HEAD
SETTING
AIR
SHUTTER/BAND
SETTING
DESIGN GROSS
STACK F˚
NBR3-179 CF 375 179,000 206,312 (1.48) 84.8 Hago 1.25 x 45 B 140 2" 1 3.5 / 0 405
NBR3-199 CF 375 199,000 230,010 (1.65) 84 Hago 1.35 x 45 B 150 2 " 1 3.5 / 0 435
NBR3-212 CF 375 212,000 246,738 (1.77) 83.1 Hago 1.50 x 45 B 140 2 " 1 5.5 / 0 450
NBR3-244 CF 375 244,000 288,558 (2.07) 82.6 Hago 1.75 x 45 B 140 2 " 1 6.0 / 0 500
NBR3-276 CF 375 276,000 330,370 (2.37) 81.6 Hago 2.00 x 45 B 140 2 " 1 8.0 / 0 550
NBR3-285 CF 375 285,000 341,530 (2.454) 80.8 Hago 2.00 x 45 P 150 2 " 2 7.5 / 0 575
Model Nomenclature: NBR3 denotes NBR-3001 *Also approved with Danfoss and Delevan nozzles

Warranty - Newmac offers a 20 year limited warranty on the pressure vessel.

FOOTPRINT

Footprint
Model
NBR-3001
A Length 37"
B Width 26"
C Height 36"
D Overall Length including
Flue Pipe 47"
G Flue Pipe Diameter 7"
N NPT Return/Drain Pipe Tapping 2"
V NPT Supply Pipe Tapping 2"
W NPT Aquastat Tapping 3/4"
X NPT Tridicator Tapping 1/2"
Y NPT Low Water Cut-Off Tapping 3/4"
Z NPT Relief Valve Tapping 3/4"
Volume (US gallons) 38
Weight (lbs) 600