Gas Tankless Water Heaters

Browse gas tankless water heaters at wholesale prices from the leaders in tankless water heating from Bosch and Rheem. With monthly gas tankless costs as much as 20% less expensive than tradtional water heaters, now is the time to upgrade or replace your traditional water heater. Gas tankless water heaters are available in (2) two options.

1. Natural Gas Tankless Water Heaters

Natural gas tankless water heaters may be a better alternative as some electric tankless water heaters will need a power upgrade.

2. Propane Gas Tankless Water Heaters

Propane Gas tankless water heaters are a viable alternative in areas where natural gas is not available.

In order to ensure enough hot water for multiple household tasks such as taking a shower and running a dishwasher, make sure you have a whole house gas tankless water heater.

Gas Tankless Water Heater Benefits

  • High electric rates, a gas tankless water heater is an alternative to electric
  • Higher flow rate in gallon per minute compared to electric
  • Easy installation
Gas Tankless Water Heater Ventilation

All indoor tankless gas water heaters must be vented to the outdoors. It’s critically important to determine if your current ventilation is compatible.

Browse gas tankless water heater prices, read reviews, and get rewarded through our buyer rewards programs. Find your solution and start saving!
1-15 of 41 products Sort by 
  1. 1
  2. 2
  3. 3

Rheem RTGH-95DVLN

Rheem RTGH-95DVLN

Rheem Gas Tankless Water Heater, Condensing, Direct Vent

Regular Price: $1,651.99
On Sale: $1,179.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm C 1210 ESC NG

Bosch Therm C 1210 ESC NG

Bosch Tankless Gas Water Heater, Commercial Indoor Condensing, 225,000 BTU Max, 12.1 GPM

Our Price: $1,899.99
+ FREE Shipping
Qty

Rheem RTGH-84DVLN

Rheem RTGH-84DVLN

Rheem Tankless Water Heater, Natural Gas 157,000 BTU Max High Efficiency Condensing Direct Vent - Indoor, 8.4 GPM

Regular Price: $1,490.99
On Sale: $1,064.99
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-84XLN

Rheem RTG-84XLN

Rheem Tankless Water Heater, Natural Gas 180,000 BTU Max Direct Vent Whole House - Outdoor, 8.4 GPM

Regular Price: $1,098.99
On Sale: $784.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Greentherm C 1050 ES NG

Bosch Greentherm C 1050 ES NG

Bosch Natural Gas Tankless Water Heater, 199,000 BTU,10.5 GPM

Regular Price: $2,099.99
On Sale: $1,499.99
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-64DVLN

Rheem RTG-64DVLN

Rheem Tankless Gas Water Heater, 150,000 BTU, 6.4 GPM

Regular Price: $909.99
On Sale: $649.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm 330 PN LP

Bosch Therm 330 PN LP

Bosch Propane Tankless Water Heater, 75,000 BTUs, NonCondensing Whole House, Indoor, 3.3 GPM

Our Price: $402.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm 520 PN LP

Bosch Therm 520 PN LP

Bosch Tankless Water Heater, Liquid Propane 117,000 BTU Max Piezo Ignition Non-Condensing Whole House - Indoor. 5.2 GPM

Our Price: $674.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm C 1210 ES LP

Bosch Therm C 1210 ES LP

Bosch Liquid Propane Tankless Water Heater, 199,000 BTUs, Condensing Whole House, Indoor, 12.1 GPM

Our Price: $1,799.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm C 1210 ES NG

Bosch Therm C 1210 ES NG

Bosch Gas Tankless Water Heater, 225,000 BTU, 12.1 GPM

Regular Price: $2,624.99
On Sale: $1,874.99
+ FREE Shipping
Qty

Bosch Therm 520 PN NG

Bosch Therm 520 PN NG

Bosch Natural Gas Tankless Water Heater, 117,000 BTUs, Non-Condensing Whole House Indoor, 5.2 GPM

Our Price: $699.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm C 1210 ESC LP

Bosch Therm C 1210 ESC LP

Bosch Propane Tankless Water Heater, Commercial, 225,000 BTUs, 12.1 GPM

Our Price: $1,899.99
+ FREE Shipping
Qty

Rheem RTG-64DVLP

Rheem RTG-64DVLP

Rheem Tankless Water Heater, Liquid Propane 150,000 BTU Max Direct Vent Whole House - Indoor, 6.4 GPM

Regular Price: $909.99
On Sale: $649.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm 330 PN NG

Bosch Therm 330 PN NG

Bosch Natural Gas Tankless Water Heater, 75,000 BTU, Non Condensing Whole House, Indoor, 3.3 GPM

Regular Price: $578.99
On Sale: $413.20
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty

Bosch Therm 520 HN NG

Bosch Therm 520 HN NG

Bosch Natural Gas Tankless Water Heater, 117,000 BTU, 5.2 GPM

Our Price: $714.99
Qualifies for Pallet Pricing!

Purchase Pallet Items & Save!

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

+ FREE Shipping
Qty
1-15 of 41 products Sort by 
  1. 1
  2. 2
  3. 3

How to Select

How to shop for Gas Tankless Water Heaters

When shopping for gas tankless water heaters, a visit to Westside Wholesale can make the process much simpler and will ensure that you will obtain the best water heater for your needs. A heating system that heats water on demand will be the most economic, efficient and environmentally sound choice for most people. Traditional water heating systems can consume surplus energy due to the need to store hot water whereas the on demand system means your only pay for water when you want to use it.

To get the most appropriate water heater for your needs, a few considerations should be made. Westside Wholesale’s experts are here to help you select the best gas tankless water heater for your needs, but it is also important that you do some research on your own as well.

These are all important factors to be mindful of when shopping for a new tankless water heater:

  • Expectations. To get the best from a tankless water heater it is a good idea to understand why these models are useful and whether they are appropriate for you. Tankless heating has several advantages over other methods. These include on demand water, energy saving and also space saving. The latest technology used is tankless water heating combines all these benefits.
  • Installation options. Gas tankless water heaters come with a variety of options, almost all combine electricity with gas. However electricity will only operate the sensors and switches in the unit. Gas installation gives the advantage of lower pricing options and also the speed and convenience of the energy source.
  • Model. Before choosing a model of tankless water heater some important data is required. It is vital to know the local groundwater temperature as this determines how hard the heater must work to raise the water temperature. Also the capacity of the heater should be considered. An on demand system must be able to supply several devices simultaneously.

Finally whichever system is chosen it is important to be comfortable with the safety functions. All manufacturers who supply Westside Wholesale meet the rigorous safety qualifications. Heaters come complete will automatic sensors to detect carbon monoxide and also automatic shutdown is possible.

Westside Wholesale only stock gas tankless water heaters from select manufacturers. Bosch and Rheem are trusted names and have many years of experience in the market, which is why we are happy to carry products from each brand.

Westside Wholesale will be happy to help you select a gas tankless water heater and experts are always available to answer questions.