Sales & Customer Service
Office Hours: Mon-Fri - 5:00am-5:00pm PST
Sat-Sun - 10:00am-2:00pm PST
Toll Free: 1-877-998-WEST (9378) Email: sales@westsidewholesale.com Links:
Free Shipping On All Orders Over $99

Rheem Tankless Water Heaters

Westside Wholesale offers innovative water heating solutions from Rheem. This reliable manufacturer creates highly efficient appliances with a lot of new technological innovations paying particular attention to today’s home needs.

This manufacturer has all kinds of tankless water heaters from point of use applications to whole house systems. Rheem created water heating solution to fit any needs. These appliances provide a continuous supply of hot water and all models are concentrated on being energy efficient. Moreover, Rheem knows that some have little space for such appliances so engineers worked hard to create a space saving heater that can be installed anywhere.

Rheem tankless heaters product instant hot water while also reducing engery costs. Now, it is possible to load the laundry, turn on the dishwasher, and bathe simultaneously. Additional benefits include LED lights to indicate the active element and standby mode.

These products are acknowledged in the professional sphere as well. Rheem Tankless Water Heaters have been acknowledged as one of the Top Green Products in Building Products Top 100. This rating identifies new products that are used by building professionals. At Westside Wholesale we these products at unbelievable discounts.

31-45 of 60 products Sort by 

Rheem RTG20214D

Rheem RTG20214D

Rheem Tankless Water Heater Liquid Propane Commercial Conversion Program Chip for RTG-84XP

Our Price: $25.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG20040

Rheem RTG20040

Rheem Tankless Water Heater EZ Link Cable

Our Price: $19.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG-95DVLN

Rheem RTG-95DVLN

Rheem Tankless Water Heater, Natural Gas 199,000 BTU Max Direct Vent Whole House Residential/Commercial - Indoor, 9.5 GPM

Our Price: $1,099.95
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG20185

Rheem RTG20185

RRheem Tankless Water Heater 4" Vertical Termination Vent Kit for RTG-74PV & GT-199PV

Our Price: $174.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

+ FREE Shipping
Qty

Rheem RTG-84XLP

Rheem RTG-84XLP

Rheem Tankless Water Heater, Liquid Propane 199,000 BTU Max Direct Vent Whole House Residential/Commercial - Outdoor, 8.4 GPM

Our Price: $849.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

+ FREE Shipping
Qty

Rheem RTG20059

Rheem RTG20059

Rheem Tankless Water Heater Direct Vent Sweet Termination Kit - 9" to 13" Wall Thickness

Regular Price: $286.99
On Sale: $204.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

+ FREE Shipping
Qty

Rheem RTG20236A

Rheem RTG20236A

Rheem Tankless Water Heater Natural Gas Commercial Conversion Program Chip for RTG-95DVN

Regular Price: $32.38
On Sale: $26.98
as low as: $24.28

Bundle Items & SAVE!

Add 15 : $25.63 ea. (5% off)
24 : $25.09 ea. (7% off)
32+ : $24.28 ea. (10% off)
Qty

Rheem RTG20006DN-1

Rheem RTG20006DN-1

Rheem Tankless Water Heater High Altitude Chip for RTG-74PVN - Natural Gas (6561-9840 Ft.)

Regular Price: $27.99
On Sale: $19.95
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG20006DL-1

Rheem RTG20006DL-1

Rheem Tankless Water Heater High Altitude Chip for RTG-74PVP - Liquid Propane (6561-9840 Ft.)

Our Price: $20.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG20060

Rheem RTG20060

Rheem Tankless Water Heater Direct Vent Sweet Termination Kit - 13" to 17" Wall Thickness

Regular Price: $300.99
On Sale: $214.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

+ FREE Shipping
Qty

Rheem RTG-20149C

Rheem RTG-20149C

Rheem Tankless Water Heater 3" Single 90 Degree Elbow for Wall Venting

Regular Price: $45.58
On Sale: $37.98
as low as: $34.18

Bundle Items & SAVE!

Add 11 : $36.08 ea. (5% off)
17 : $35.32 ea. (7% off)
23+ : $34.18 ea. (10% off)
Qty

Rheem MIC-K-16

Rheem MIC-K-16

Rheem Tankless Water Heater 16 Ft. Communication Cable

Regular Price: $23.04
On Sale: $19.20
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG2006EK

Rheem RTG2006EK

Rheem Tankless Water Heater High Altitude Chip for RTG-74XN - Natural Gas (3281-6560 Ft.)

Our Price: $21.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG20214B

Rheem RTG20214B

Rheem Tankless Water Heater Liquid Propane Commercial Conversion Program Chip for RTG-95DVP

Our Price: $25.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

Order $2000 in Pallet Items and
Save an Extra 5% off your Pallet!

Qty

Rheem RTG20214A

Rheem RTG20214A

Rheem Tankless Water Heater Natural Gas Commercial Conversion Kit for RTG-95DV

Our Price: $29.99
as low as: $26.99

Bundle Items & SAVE!

Add 14 : $28.49 ea. (5% off)
22 : $27.89 ea. (7% off)
29+ : $26.99 ea. (10% off)
Qty
31-45 of 60 products Sort by 

How to Select

How to Select a Tankless Water Heater

The most important factor when deciding which tankless water heater to purchase is based on the number of fixtures you need to get heated water to and the amount of water to heat. It is not uncommon for a homeowner to purchase the tankless unit that seems correct for their application to find that they miscalculated. We always recommend purchasing a tankless unit with redundancy in output; therefore you will never have an issue with lack of hot water.  Most ratings from the manufacturer do not take into account your unique plumbing situation, so consulting a professional is recommended.

Before you pick out your tankless heating unit, you will want to check the following:

  1. Power Type: Electrical, Natural Gas, Liquid Propane. Depending on your house utility configuration, you can connect a tankless unit to any of the following power sources, however, you must consider that an electrical tankless unit will not work in Natural gas applications or Propane, and vice versa.
  2. For Electric Tankless Heating Units, your amperage and voltage are very important. Your breaker size may be too small, or may need to be upgraded to accommodate the new heater. If this is the case, upgrade to a breaker that will have some redundancy in power rating.
    (For example, if your tankless heating unit requires a 40 Amp breaker, we recommend installing a 50 Amp just in case.)
  3. How far your tankless heating unit will be installed from your fixtures. If your heater is too far from your shower, or faucets, they will either get a reduced flow of water, or a lack of heat. This is caused by the added traveling distance the water must travel through your pipes.  If this is a concern for you, consult our staff for expert advice, or consult the installer for recommendations.
  4. Whole house or Point of Use. Point of use tankless units only operates with a single fixture at the point of use. Some point of use models can work with extension kits to expand usage to multiple fixtures. Whereas whole house tankless units are designed for larger volumes and will provide heated water to all fixtures in your household. Once again, it is important to take redundancy into account with Whole house heaters to make sure each fixture has steady, warm flow.

For additional assistance, or for expert advice, contact our Customer Service Department through Live Chat or by calling 1-877-998-9378.