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The Right Choice for Pool and Spa Heating
The Right Choice for Pool and Spa Heating
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The Right Choice for
Pool & Spa Heating
• Fastest Heat Up Time in the Industry
• Commercial Grade Construction
• Comfort In Mind and Body
Conventional*
Vents into conventional
vertical flue or vent
breaching using Type B
double wall vent.
E-Rite
TM
Side Wall*
Draws fresh combustion air
horizontally through outside
wall, and vents by-products
horizontally up to 20 equivalent
feet through outside wall using
Category IV type vent.
Outdoor
Standard from factory.
Use when indoor
space is insufficient
or if outdoor location
provides better access.
Relax and Enjoy
Lochinvar quality is backed with
a comprehensive 3/2 limited
warranty, providing 3 full years of
protection on the heat exchanger and 2 full years
on parts. Enjoy your pool or spa investment and
relax knowing that it’s heated by Lochinvar!
Installation is Made Easy
The Lochinvar EnergyRite2offers
multiple venting options that can
save time and money during
installation - indoors or outdoors.
With the flexibility of venting
either horizontally or vertically,
installations become a snap.
* Indicates factory vent kit required
Protecting the Environment – Now
and for Future Generations
The Lochinvar EnergyRite2is one of the most
environmentally friendly pool heaters on the market
today. With NOx emissions less than 20 ppm, it
exceeds the stringent low NOx emmisions standards
of Texas and of California’s South Coast Air Quality
Management Districts. The EnergyRite
2
not only
complies with the current emmisions standard –
it also meets the more restrictive NOx limitations
proposed for the future.
Quality Built-In
Built to commercial grade standards, EnergyRite2pool heaters
are better designed and better built. The rust
free water surfaces are completely lined with
a molecularly molded porcelain glass mixture,
extending the performance of your pool
heater. Its gasket free, copper finned tube
heat exchanger is the only one in its class - eliminating
leaks and failures common with similar models, while
providing years of efficient operation. And every EnergyRite
2
pool heater is quality checked throughout the manufacturing
process, giving you a pool heater built to a higher standard.
Faster Heat Up Time, Plus Higher
Efficiency Equates to Lower Operating Costs
With efficiencies of up to 88%, the EnergyRite2will make
an immediate impact by lowering your monthly fuel bill!
With the EnergyRite
2
, 88 cents from each fuel dollar is used
for what is intended – heating water. EnergyRite
2
heats the
pool water faster with energy saving performance.
Venting Solutions
Venting Solutions
The Right Choice for
Pool & Spa Heating
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DirectAire®Vertical
w/Rooftop Inlet*
Draws fresh combustion
air vertically through roof,
and vents combustion
by-products through
conventional vertical flue.
Powered Side Wall*
Draws fresh combustion air
from inside the room, and
vents by-products horizontally
up to 75 equivalent feet
through outside wall using
powered vent cap.
DirectAire
®
Vertical
w/Sidewall Inlet*
Draws fresh combustion air
horizontally through outside
wall, and vents combustion
by-products through a
vertical flue.
Power DirectAire
®
Horizontal*
Draws fresh combustion air
horizontally through outside wall,
and vents by-products
horizontally up to 75 equivalent
feet through outside wall using
powered vent cap.
"Fail Safe" Ignition System
Utilizes hot surface ignition and "Smart Valve" controls for comfort assurance. Hot surface
ignition is more reliable than spark or pilot ignition, guaranteeing a heated pool/spa
when you need it. And the "Smart Valve" controls optimize performance and efficiency
by ensuring the proper mixture of fuel and air for a "Fail Safe" Ignition System.
"Safety-Seal"
Combustion
Chamber
Completely sealed to keep out
wind and ensure safe operation, it
also helps to keep out wasp nests,
spiders and other pests. And the outer jacket
is made of heavy duty galvanized, pre-painted
steel – stronger than other heaters in its class!
Heavy Duty, Gasketless
Heat Exchanger
Lochinvar's high-efficiency, copper finned
tube, gasketless heat exchanger design enhances reliability, durability
and performance, while eliminating the leaks and failures common
with O-rings and gaskets. And all EnergyRite² heat exchangers are
built to the same ASME* construction standard as large commercial
grade pool heaters.
(*ASME certification is available as an option.)
Simple,
Convenient
Connections
Pipe directly to
the heater with PVC
or CPVC materials
lowering your
installation costs.
The flanged connections
can be easily adapted
for either 1-1/2" or 2" pipe,
threaded or slip-fit connections.
Remote Control Ready
All EnergyRite² models come equipped
with a convenient 24-volt terminal
strip for fast and easy
connection to optional
remote controls,
purchased separately.
Environmentally
Friendly
High efficiency stainless
steel burners ensure precise
mixture of gas and air
for clean combustion and
a cleaner environment.
Comfort with
Digital Accuracy
The user friendly design
allows fingertip access
of temperature settings.
Its programming menu
guarantees total comfort while providing the
ability to switch from pool to spa control.
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Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000
www.Lochinvar.com
ER2-02
PIP-10M-3/05-Printed in U.S.A
Standard Features
• 88% Thermal Efficiency
• Digital Temperature Control
• Gasketless Heat Exchanger
• CPVC or PVC Ready
• “Fail Safe” Ignition System
• Remote Control Ready
• Power Induced Blower
• Sealed Combustion Chamber
• Stainless Steel Burners
• Loch-Heat
TM
Ceramic Tile
• 24v Terminal Strip
• Built-in Air and Water
Pressure Switches
• Glass-Lined, Cast Iron Header
with Built-in Bypass
• Low NOx Emissions Meet the
Most Stringent Standards
• Outdoor Venting
• 3 Year Limited Warranty on
Heat Exchanger
• 2 Year Limited Warranty on Parts
(see warranties for details)
EnergyRite22Dimensions
FOR EASE IN ORDERING
By Model Number
This is an EnergyRite
2
Natural Gas Pool Heater
with 300,000 Btu/hr input.
E R N 301
EnergyRite
2
Series
Fuel
Type
Btu/hr
Input
*Note: Change “N” to “L” for LP Gas Models. No deration for LP on outdoor
applications. Output based on 88% thermal efficiency. Water connections 2" NPT.
MODEL Btu/hr Btu/hr SHIPPING
NUMBER INPUT OUTPUT INTAKE VENT WEIGHT
ERN151 150,000 132,000 4" 5" 235
ERN201 199,999 175,999 4" 5" 255
ERN251 250,000 220,000 4" 5" 275
ERN301 300,000 264,000 5" 5" 290
ERN401 399,999 351,999 5" 6" 315
MODEL GAS
NUMBER A B D E CONN.
ERN151 24-3/4" 23" 12-1/2" 6" 3/4"
ERN201 24-3/4" 26-1/2" 14-3/4" 6" 3/4"
ERN251 24-3/4" 30-1/4" 17" 6" 3/4"
ERN301 24-3/4" 33-3/4" 18-1/2" 6-1/2" 3/4"
ERN401 24-3/4" 41" 22-1/4" 7" 3/4"
Optional Equipment
• Cupro-Nickel Heat Exchanger
• Alarm Bell
• ASME Certification
• Combustion Floor Shield
• ASME Relief Valve
• Indoor Venting Solutions
POOL HEATER SIZING CHART
Desired Temperature Rise
Model 10°F 15°F 20°F 25°F 30°F
Number Pool Surface Area in Sq. Ft.
ERN151 1257 838 629 503 419
ERN201 1676 1117 838 670 559
ERN251 2095 1397 1048 838 698
ERN301 2514 1676 1257 1006 838
ERN401 3352 2235 1676 1341 1117
NOTE: Sizing is based on a 3-1/2 MPH average wind velocity for elevations
up to 2,000 feet above sea level. For each 1,000 feet above 2,000 feet
elevation, add 4% to the surface area of the pool.
SPA & HOT TUB SIZING CHART
Spa/Tub Size in US Gallons
Model 200 300 400 500 600 700 800 900 1000
Number
Time (Minutes) required to raise temperature
ERN151 23 34 45 57 68 80 91 102 114
ERN201 17 26 34 43 51 60 68 77 85
ERN251 14 20 27 34 41 48 55 61 68
ERN301 11 17 23 28 34 40 45 51 57
ERN401 9 13 17 21 26 30 34 38 43
NOTE: Sizing is based on a 30°F temperature rise. To adjust for other
temperature rises divide the time listed in the table by the temperature ratio.
Example: for a 15°F temperature rise divide by 2 (30/15=2).
Swimming Pool Sizing
• Determine your pool's surface area in square feet.
• Determine the desired temperature rise by subtracting
the average air temperature from the desired pool
temperature.
• In the table below locate the surface area equal to,
or just greater than, your pool's surface area at the
desired temperature rise.
• Read to the left for the appropriate EnergyRite²
model number.
Spa and Hot Tub Sizing
• Determine your Spa/Hot tub's capacity in U.S. gallons
by multiplying the surface area (in square feet) by the
average depth (in feet), then by a conversion factor of
7-1/2. (1 ft³ = 7-1/2 gallons)
• The table lists the time required (in minutes) to raise the
temperature of different size spa/hot tub's 30°F.
• In the table below locate the gallon capacity equal to
or just greater than your spa/hot tub's size in gallons.
• Select the desired heat up time.
• Read to the left for the appropriate EnergyRite²
model number.
EnergyRite22Pool and Spa Sizing Guides
Optional
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