Indoor Direct Vent
Outdoor
High-efficiency condensing tankless gas water heaters
designed for endless hot water.
TechnologyEfficiency
• Up to .93 UEF with stainless steel condensing heat
exchanger
Easy Installation and Service
• 2" venting connections
• Vent up to 150 ft with 3" PVC and 60 ft with 2" PVC
• Built-in condensate neutralizer
• 1/2-inch Gas line compatibility up to 24 ft
1
• Maintenance Notice Setting – alerts homeowner, after
500 hours of use, to call for service check (optional)
• Self-diagnostic system for easy installation and service
• High-altitude capability – up to 8,400 ft elevation above
sea level
2
• Digital remote control pre-wired and 10
ft of thermostat wire included – shows
temperature setting and service codes
• Requires 120V power supply
Performance
• Industry Leading! Low Flow Activation – minimum flow
rate of .26 GPM and minimum activation flow rate of .40
GPM ensures the user will receive hot water even in low
demand situations
• Recirculation Pump Kit-Ready – providing faster hot
water at the tap and savings of up to 12,000 gallons
water/year
• Hot Start Programming – minimizes cold water bursts by
staying in ready-fire state for back-to-back hot water
needs
3
• EcoNet® Enabled – all gas tankless products from 2010 to
present can connect to EcoNet mobile app via Tankless
EcoNet Accessory Kit (REWRA630TWH)
• For higher demand applications, easily link multiple
tankless units to operate as one system
Environmentally Friendly
• Low Emissions – ultra low NOx burner meets SCAQMD
rule 1146.2 requirements
• Water Savings Setting – upon activation, this setting can
save up to 1,100 gallons water/year4 by reducing flow at
the tap until set temperature is achieved (optional)
Safety
• Guardian overheat lm wrap - prevents dangerous
temperatures and provides industry best side-to-side
clearance of 1/2-inch
• Industry Best! Freeze protection to -30°F
Warranty
• 12-Year heat exchanger – residential, 5-year heat
exchanger – commercial, 5-year parts and 1-year labor
See Warranty Certificate for complete information
I
G
S
E
N
D
C
D
E
E
R
I
See specications chart on back.
LEED Points = 2
1
Based on internal testing of 1/2" gas line with gas supply of 7" w.c. up to 24’; Installation conditions vary; Consult the Use and Care Manual, the National Fuel Gas Code (NFPA 54, ANSI Z223.1), and any other
local gas codes when installing an EcoSmart Tankless Water Heater. 2 Contact customer service for exact altitude rating for each model. 3 Pump kit designed for single unit applications only. 4 Savings based on
DOE test procedures.
9 ¾”18 ½”
Flow Rate (GPM)
Delta T (°F)
Water Heater Flow Rate Curves
9 ¾”
18 ½”
Specifications
DESCRIPTION
GAS
MODEL
INPUT
BTU/H TYPE
EcoSmart ESGH-95 High-Efficiency Series
ESGH-95-DVLN-2
ESGH-95-XLN-2
11,000-
Direct Vent
199,900
11,000-
Outdoor 4 85°F 140°F 0.26/0.40
199,900
EcoSmart ESGH-84 High-Efficiency Series
ESGH-84-DVLN-2
ESGH-84-XLN-2
11,000157,000
Direct Vent
11,000-
Outdoor 3 85°F 140°F 0.26/0.40
157,000
10
9
8
7
6
5
4
3
2
1
ESGH-95 Max. Flow
ESGH-84 Max. Flow
0
10 3020 40 50 60 70 8 0 90 100
Indoor
Indoor
NUMBER OF
BATHROOMS*
FEATURES ROUGHING IN DIMENSIONS ENERGY INFO
MAX.
TEMP
MIN. FLOW/
ACTIVATION
GPM
Maximum Vent Length (intake/outlet) Each:
MIN.
TEMP
4 85°F 140°F 0.26/0.40
3 85°F 140°F 0.26/0.40
4 ¼”
3 ¼”
2 ¾”
3 ½”
6 ¾”
Indoor Direct Vent
67°
45°
RISE
RISE
MAX.
MAX.
5.7
8.5
GPM
GPM
5.6
8.5
GPM
GPM
4.6
6.7
GPM
GPM
4.5
6.7
GPM
GPM
Number
of 90°
Elbows
0 or 1 60.0 ft 150.0 ft
2 58.5 ft 148.5 ft
3 57.0 ft 147.0 ft
4 55.5 ft 145.5 ft
5 54.0 ft 144.0 ft
6 52.5 ft 142.5 ft
(ULC-S636 pipe must be used for Canada.)
Maximum
Length of 2"
Straight Pipe
CONNECTION
MAX.
GPM
9.5 3/4" 3/4" 27-1/2" 18-1/2" 9-3/4"
9.5 3/4" 3/4" 27-1/2" 18-1/2" 9-3/4" N/A 82 lb .93
8.4 3/4" 3/4" 27-1/2" 18-1/2" 9-3/4"
8.4 3/4" 3/4" 27-1/2" 18-1/2" 9-3/4" N/A 82 lb .93
Maximum
Length of 3"
Straight Pipe
2 ¾”2 ½”
HEIGHT WIDTH DEPTH
4 ¼”
* Based on simultaneous showers using 2.5 GPM flow rate
pre-mixed with cold water line. Flow rates vary depending
on temperature of incoming cold water and water heater set
temperature. Refer to flow rate curves for accurate sizing.
Uniform Energy Factor based on Department of Energy (D.O.E.)
requirements.
All models are available in Natural Gas and Propane (LP). For
Propane replace the N with P when ordering.
SCAQMD 1146.2 compliant.
Factory set maximum temperature is 120° F. See Use and Care
Manual for setting.
Consult factory for information on sizing the application.
Vent Termination Kits are required for Direct Vent models.
Contact your distributor for details.
Proper gas pressure must be ensured to supply tankless gas
water heaters – up to 199,900 BTU/h for ESGH-95 models,
up to 157,000 BTU/h for ESGH-84 models. (Consult your gas
supplier)
3 ¼”
3 ½”
Outdoor
VENT
DIAM.
2" or 3"
PVC 2-Pipe
2" or 3"
PVC 2-Pipe
2 ¾”
6 ¾”
SHIP
WEIGHT
82 lb .93
82 lb .93
2 ¾”2 ½”
UNIFORM ENERGY
FACTOR (UEF)WATER GAS
Temperature Rise
Temperature Rise Table. Reflects flow
rate for different gas tankless models at
various temperature rises (in °F) shown
in gallons per minute. Estimates are for
ESGH-95 Series
ESGH-84 Series
MODEL
sizing purposes only.
EcoSmart • 400 Captain Neville Drive, Waterbury, CT 06705 • EcoSmartUS.com
35° 45° 50° 60° 67° 70° 80° 90° 100°
9.5 8.5 7.7 6.4 5.7 5.5 4.8 4.3 3.8
8.4 6.7 6.0 5.0 4.6 4.3 3.8 3.3 3.0
Information and product specifications contained in this document are subject to change without notice.
EX09001-72 REV 2018-04