Performance
independently
certified by
The Hydronics
Institute
Abundant domestic hot water
2-inch CFC-free foam insulation
Appliance grade steel jacket
T&P relief valve included
Brass drain valve
Porcelain enamel coated smooth coil design
with low pressure drop
Porcelain enamel tank with three sacrificial
anode rods for maximum corrosion resistance
Honeywell adjustable aquastat
Fully tested for a maximum working pressure
of 150 psi
PERFORMANCE SPECIFICATIONS
SPECIFICATIONS
& DIMENSIONS
GENERAL CONFIGURATION
Hydronics Institute Tested
performance ratings
First Hour Rating (Gal/hr)
Cont. Draw Rating (Gal/hr)
Standby Heat Loss (F/hr)
Min. Boiler Output (BTU/hr)
Boiler Water Flow (Gal/min)
Coil Head Loss (ft w.c.)
Performance independently
certified by
The Hydronics Institute
MT040GBR MT050GBR MT065GBR MT080GBR MT120GBC
188 193 204 221 408
162 162 162 162 325
1.0 0.9 0.8 0.8 0.7
106,000 106,000 106,000 106,000 212,000
8.0 8.0 8.0 8.0 10.6
1.6 1.6 1.6 1.6 3.0
Notes:
1) Ratings based upon the following conditions:
2) The ratings shown were obtained at the heat
3) I=B=R certification applies only to the ratings
OTHER SPECIFICATIONS
MT040GBR MT050GBR MT065GBR MT080GBR MT120GBC
Coil Surface (sq. ft.)
Tank Volume (Gal)
Net Weight (lbs)
eight (lbs)
Filled W
14.2 14.2 14.2 14.2 27.2
40 50 60 75 114
168 196 196 224
514
Model
180ºF boiler supply, 58ºF cold water in,135ºF
domestic water out.
source output rates and heat source flow rates
shown in the chart above. Other results will
be obtained under different conditions.
in the chart above.
Model
623
704 861 1370
415
AVAILABLE FROM
DIMENSIONS (INCHES)
Model A B C D E F
MT040GBR 24 36 29-3/4 36-3/4 5-3/8 27-1/2
MT050GBR 26 36 29-3/4 36-3/4 5-3/8 27-1/2
MT065GBR 22 59-1/4 53-1/8 60 5-3/8 27-1/2
MT080GBR 24 59 52-7/8 59-3/4 5-3/8 27-1/2
MT120GBC 28-1/4 62-1/2 55-3/4 63-1/4 6-3/8 48-3/4
Since 1949, homeowners have depended on us
for quality, value and service
3633 I Street, P. O. Box 14818
Philadelphia, PA 19134
Phone: (215) 535-8900 Fax: (215) 535-9736
Visit us on the web: www.crownboiler.com
MT-8/06-RI-(20 M)
PN980517