3633 I Street, P. O. Box 14818; Phone: (215) 535-8900 Fax: (215) 535-9736; Hydronics Institute Tested- Page 2

Since 1949, homeowners have depended on us 
for quality, value and service

AVAILABLE FROM

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

SPECIFICATIONS

& DIMENSIONS

PERFORMANCE SPECIFICATIONS

GENERAL CONFIGURATION

DIMENSIONS (INCHES)

OTHER SPECIFICATIONS

Model

First Hour Rating (Gal/hr)            188

193

204

221

408

Cont. Draw Rating (Gal/hr)          162

162           162

162

325

Standby Heat Loss (F/hr)            1.0

0.9

0.8

0.8       

0.7

Min. Boiler Output (BTU/hr)      106,000

106,000

106,000      106,000

212,000

Boiler Water Flow (Gal/min)          8.0

8.0

8.0

8.0

10.6

Coil Head Loss (ft w.c.)               1.6

1.6

1.6

1.6

3.0

Model

MT040GBR  MT050GBR

MT065GBR  MT080GBR    MT120GBC

Coil Surface (sq. ft.)               14.2

14.2

14.2

14.2  

27.2

Tank Volume (Gal)                40

50

60

75

114

Net Weight (lbs)                   168

196

196

224

415

Filled Weight (lbs)                514

623

704

861

1370

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

Notes:
1) Ratings based upon the following conditions:

180ºF boiler supply, 58ºF cold water in,135ºF
domestic water out.

2) The ratings shown were obtained at the heat

source output rates and heat source flow rates
shown in the chart above. Other results will 
be obtained under different conditions.

3) I=B=R certification applies only to the ratings 

in the chart above.

Performance independently

certified by 

The Hydronics Institute

Hydronics Institute Tested
performance ratings

MT040GBR  MT050GBR   MT065GBR   MT080GBR   MT120GBC