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B

C

INDOOR

DRAFTHOOD

31-13/16"

7-3/4"

GAS

CONNECTION

J

A

20-1/2"

(22-1/2" ASME)

26-1/2"

ELECTRICAL

CONNECTION

34"

STACKLESS

OUTDOOR TOP

28"

4-3/8"

(3-3/8" ASME)

8-7/8"

(6-5/8" ASME)

Designation for a Digital heater using propane gas is “EP”; a Digital heater using natural gas is “EN”.
Prefix “P” is for plastic (polymer) headers; “C” is for cast iron (ASME) headers.
Suffix “X” is for cupro-nickel tubing; “C” is for copper tubing
Example: 

P-R407A-EN-X

= Plastic headers, 407 model size, digital, natural gas, cupro-nickel  

For elevations above 5000 feet consult the factory.
Manufactured under Patent No. 3,623,458.

Technical Data

Digital Low NOx Gas Heaters 

Heater

Model

BTUH

Input
(000)

(A)

Cabinet

Width

(B)

Flue

Diameter

(C)

Indoor

Drafthood

(J)

Minimum

Gas

Conn.

Water

Conn.

Shipping Weights (lbs)

w/ Polymer

Headers

and Stackless

Top

w/ cast iron

Headers

and Stackless

Top

Indoor

Drafthood

R207A

199.5

20”

6”

55-5/8”

12”

3/4”

2”

174

193

12

R267A

266.0

23”

7”

56”

11-1/8”

3/4”

2”

197

216

15

R337A

332.5

26”

8”

57”

10-3/4”

3/4”

2”

219

238

17

R407A

399.0

29”

9”

58-1/2”

12-1/2”

3/4”

2”

237

256

20

Amp Draw

120 volt 240 volt

6

3

HEATER

CAN BE INST

ALLED DIRECTL

Y

ON A COMBUSTIBLE 

SURFACE!

Swimming Pool and Spa

Heating Products

The Pool and Spa Heating Experts

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