Rinnai ES38( IN STOCK )38,400 BTU Direct Vent Heater
Rinnai ES38( IN STOCK )38,400 BTU Direct Vent Heater
Item# ES38
Option1:  Option3: 
Availability: Usually ships in 2-3 business days

Product Description

We do not ship this item via UPS or FedEx, due to excessive damage that will result, your best method is motor freight, your heater will be pampered!

Video on Rinnai

Please choose Estimate Rinnai Motor Freight for this item.

Unlike ordinary single-stage (on/off, hot/cold) gas appliances the Rinnai Energy Saver has the ability to modulate both its burner and blower to provide maximum efficiency and comfort.

The Energy Saver furnace incorporates an electronically driven seven-stage gas control system to help maintain an even and continuous heat output for very stable room temperature control and efficiencies in both gas and electrical consumption.

The Energy Saver is attractive, quiet, compact and has a cool to the touch cabinet. All of these features add up to make the Energy Saver an excellent companion for you, in your home.

Exceptional Energy Efficiency The Energy Saver extended life stainless steel heat exchanger transfers 84% of consumed gas to useful heat.

Easy Installation-The Energy Saver Rinnai Heater comes complete with an easy to install Horizontal Direct-Vent Double-Walled Venting kit. Simply drill a 3" hole through the wall, Insert Rinnai's special direct vent Double-Walled tube and adjust it to the wall thickness & mount the outside wall cap plate to the tube. Then connect the Rinnai Heater Direct-Vent Free-Standing High Efficiency Heater.

The Rinnai Direct Vent Heater is your best selection for clean comfortable Heating. Gas Heating is much cleaner than Kerosene heating which always has a slight odor.

Warranty: 2 Years Labor ~ 5 Years Parts ~ 10 Years Heat Exchanger. Rinnai stand behind there units with a terrific warrranty and consumer Technical toll free line.


HEAT INPUT (BTUs) Max. Min. Natural Gas 38,400 10,500 Propane 36,500 10,500

DIMENSIONS . Height26-3/8" Width 36-5/8" Depth 12-3/8"

MIN. CLEARANCE . Side 2" (51mm) Top 10" (250mm) Front 40" (1m)

GAS INLET 1/2" (13mm)


SUPPLY 120 Volts

60 Cycles

2.0 Amps

Draws 121 Watts


WEIGHT (Lbs.) 110 lbs. (49.9 kg)

Intelligent 7-stage Modulating Gas Valve and Blower

• Automatically adjusts the heat output and blower control, delivering a stable room temperature for maximum efficiency and comfort.

• Whisper quiet 7-stage fully modulating blower, no more going from on to off and hot and cold.

Advanced Safety Features: • Child Safety Lock.

• Electronic Ignition—no pilot light.

• Venting Systems are wind tunnel tested.

• Clean filter indicator.

• Each heater passes a rigorous battery of tests before it leaves Rinnai.

• On board Self-Diagnostics for easier maintenance.

The Only “Cool-to-the-Touch Cabinet” In America. Making it safe for any room.

Up to 84% Efficient Stainless Steel Heat Exchanger

• The EnergySaver's reputation lies in its ability to extract up to 84% AFUE efficiency through the use of a stainless steel heat exchanger, which adds many years of comfort. Just imagine, no heat loss from leaky ducts.

Integral Humidifier

• Adds humidity to your room for just the right comfort level.

Installation Overview

Local, state, provincial and federal codes must be adhered to .

ES38 - Rinnai


With the ES38 you’ll enjoy clean, comfortable and consistent heat all winter long.

At up to 38,400 BTU’s, the ES38 is perfect for larger areas that require heat. And with no need for duct work, it offers flexible and easy installation options.

  • Modern design
  • Available in beige or white
  • FOT-151 wall termination kit included (4 ½” - 9 ½”)
  • Self-diagnostics with error code indicator
  • Sealed combustion
  • “Cool to the Touch” cabinet
  • Child safety lock
  • 7-Stage modulating gas valve
  • Whisper-quiet fan
  • Works with Natural Gas or Propane
  • 10-year heat exchanger limited warranty for residential installations (5 years on parts, 2 years on labor)

Dimensions: 36 ⅝” W x 26 ⅜ ” H x 13” D
Weight: 91 lbs.
Approved Gas Types: Natural Gas or Propane
Minimum/Maximum Gas Rate (Input BTUs)
Natureal Gas: 10,500 – 38,400 NG  
Propane: 10,500 – 36,500 LP
AFUE Rating: 80.6% NG and 82.0% LP
Electrical: AC 120 Volts, 60 Hz, 121 Watts 
Noise Level: 37 – 47 dB
Gas Connection: ½” FNPT
Temperature Range (Min-Max): 60°-80° F in 2° increments

Installation Kit:Includes
A 48 inch stainless steel gas flex line, 2 Dual thread Flare Adapters for 1/2 inch or 3/8 inch, one 1/2 inch gas shut off valve, pipe joint compound....$34.99.
Just add to your order , select it on the option list.

Local, state, provincial and federal codes must be adhered to.

Please check your local code authorities because restrictions on installing ventfree gas appliances may exist

Please remember to choose fuel option

(Nat Gas or LP)

We also want your new Rinnai Heater to be protected from Brownouts, power surges and electrical storms so we are going to throw in a free surge protector!

We do not ship this item via UPS or FedEx, due to excessive damage that will result, your best method is motor freight, your heater will be pampered!

Please select Estimate Motor Freight as shipping option.

Toyostove Warranty is 1 Year Parts & Labor 3 Years on Heat Exchanger

Warranty performed by Authorized Toyostove Dealer.


MONDAY thru Friday 8AM TO 8PM



To our Canadian friends, we are conveniently located 2 miles from the 290 Youngman Expressway. Take Exit 5 north off the 290 to Maple Road exit,turn right on Maple & proceed 2 miles east. We are 876 Maple Road.
Need Help with Parts Call 716-688-4488

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Hector's Hardware 876 Maple Road Williamsville, NY 14221 phone 716-688-4488

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