Technical Specifications

Temperature Rise (°F)
Model Number 30° 40° 45° 50° 60° 70° 80° 90° 100°
RUCBH199DVLN Water Flow (GPM) 9.9 8.6 7.7 7.0 5.8 4.9 4.3 3.8 3.2
RUCBH180DVLN Water Flow (GPM) 9.0 8.3 7.0 6.5 5.4 4.6 4.0 3.6 3.2
Above estimates are for sizing purposes only.
Maximum Vent Length for Direct Vent (2 Pipe) Venting Materials Allowed: Schedule 40 PVC,
CPVC, PP
Number of
Water Heaters
Common Vented
PIPE SIZE
2" 3" 4"
1 50' 100' N/A
2 N/A 50' 83'
Dimensions
NOTE: Minimum vent length 7' for 2" and 3" venting.
Condensate
Neutralizer
Manifold Accessory Vent Screens Service Valves
CH Pressure
Relief Valve
(CH Line 3/4" 30 psi)
Outdoor
Temperature Sensor
Bracket and
Anchors
SP12151 – (Optional)*
Safely dispose
of condensate RTG20318 – (Optional)
SP20895 – 2" (Included)
SP20896 – 3" (Included)
RTG20220AB –
(Sold Separately) (Included) (Included) (Included)
Parts & Accessories
*Check your local plumbing codes
Height
28.7"
Width 17.3"
Depth
14.8"
4.0"
11.5"
4.6"
Top View
13.6"
10.2"
6.8"
3.2"
2.6"
5.4"2.4"
6.1"
Bottom View
Equivalent Elbow Lengths
in Ft. of Straight Pipe
2" 3"
90° 8' 5'
45° 4' 2.5'
0
1
2
3
4
5
6
7
8
9
10
10 20 30 40 50 60 70 80 90 100
Water Heater Flow Rate Curves
Delta T(F)
Flow Rate (GPM)
Water Heater Flow Rate Curves
Venting
RUCBH199DVLN
RUCBH180DVLN
RUCBH Pressure Loss
Pressure Loss (PSI)
60
55
50
45
40
35
30
25
20
15
10
5
0
0 1 2 3 4 5 6 7 8 9 10 11 12
Flow Rate (GPM)
Ruud Residential Gas
Combi Boilers
Ruud Water Heating • 1115 Northmeadow Parkway, Suite 100, Roswell, Georgia 30076 • www.ruud.com
PRINTED IN U.S.A. 12/18 WP FORM NO. TKR-RUCBH-A
In keeping with its policy of continuous progress and product improvement, Ruud reserves the right to make changes without notice.