Rheem has been the leader in water heating for nearly 100 years, offering savings, comfort and the protection you need. Providing continuous hot water in a compact, space savings design, Rheem tankless water heaters are the perfect solution for any sized home. Rheem RTGH series can safely dispose of condensate with it's industry first built-in condensate neutralizer. With the built-in EcoNet®, you can manage your Rheem heating, cooling and hot water heating equipment.
Longer vent runs give you more versatility for installation. With the option to have up to a 150' run with 3" PVC, you can achieve your ideal installation.
Low Flow Activation
Ideal performance even in low demand situations, the Rheem RTGH has a minimum flow rate of 0.26 GPM and a minimum activation flow rate of 0.40 GPM that will ensure you will receive hot water when you need it.
Receive mobile alerts of water and gas usage as well as notifications and maintenance reminders for your tankless water heater.
Water Savings Setting
Save up to 1,100 gallons of water a year with the Water Savings Setting on the Rheem RTGH tankless water heater. Water flow is decreased through the pipes until the temperature reaches the heater's set temperature.
Built-In Condensate Neutralizer
An industry first, the Rheem RTGH comes with a built-in condensate neutralizer. Safely dispose of condensate without additional installation cost and time.
Exclusive! Water Savings Setting– upon activation, this setting can save homeowners up to 1,100 gallons of water per year by decreasing the flow of water through the pipes until the temperature reaches the heater’s set temperature
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
Exclusive! Hot Start Programming- Minimizes cold water bursts by staying in ready-fire state for back-to-back hot water needs
New! 2" Venting with band connections
New! Vent up to 150 ft with 3" PVC and 60 ft with 2" PVC
Built-in condensate neutralizer
1/2" Gas line compatibility up to 24 ft.
Exclusive! 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
Digital remote control now pre-wired and 10 ft. of thermostat wire included
Requires a 120-volt power cord (indoor models only)
EcoNet Enabled - all Tankless products from 2010 to present can connect to EcoNet mobile app via Tankless EcoNet Accessory Kit (REWRA630TWH)
For higher demand application, easily link multiple tankless units to operate as one system:
2 Units: EZ Link Cable
Up to 6 units: MIC-6 Control Board
Up to 20 units: MIC-185 plus MICS-180 manifold control assembly
Exclusive! Overheat Film Wrap- prevents dangerous temperatures and provides industry best side-to-side clearance of 1/2 inch
All of our freight shipments have a shipment guarantee! This means that if your water heater arrives later then the estimated delivery window shown on the product page we will credit you $100 upon delivery.
How long does shipping take?
Shipping times can vary from water heater to water heater, however most in stock shipments will arrive in 2-5 business days depending on how close the warehouse is to the shipping address. On each product page we give an estimated delivery window which will show roughly when a product will arrive, if you need a better estimate please call into (313) 626-6800 and one of our customer support representatives can assist you.
A select number of our products are available for expedited shipping. If we offer expedited shipping on a product it will show the option at checkout. Cost and times will depend on your location and availability of the water heater. Most expedited shipments will arrive in 1-3 business days. All expedited shipments are shipped LTL and are only estimated delivery times. For any guaranteed expedited shipments/overnight shipments please contact our customer support team for a quote.
Where do you ship from?
Our standard deliveries will ship from the closest warehouse to your shipping address. We have several warehouses in Michigan and can also ship out of any Rheem warehouses in the United States. Rheem has warehouses in Colorado, California, Florida, Texas, New Jersey, Alabama, and Illinois. Depending on availability and your location we will determine the best possible warehouse to ship from to ensure a timely delivery.
Do you deliver on weekends?
Deliveries, except for USPS, are not typically made on Saturdays or Sundays. This means any commercial water heater will not be shipped over the weekend.
Where do you ship?
We ship to the continental united states. Some products can be shipped to Alaska and Hawaii, but please contact us first to determine additional shipping cost and estimated delivery time.
Certain products are not available in Texas and California. If a product is excluded from certain states it will be noted in the product description. These products are not allowed in these states, so there are no exceptions to these exclusions.
Residential water heaters are not available for shipment. Please arrange for local pickup if needed.
Can I pick up my order?
Most orders are available for pickup at any of our warehouses in Detroit, Michigan. If you would like to pick up your order please select that option at checkout. Local pickups may be subject to a pickup fee. If your order is not being shipped from the manufacturer it is typically available the same day you place the order.
Can I track my shipment?
Once your order ships, you will receive a Ship Confirmation email, and have an option to receive email updates on the delivery status of your order. You will also receive a tracking number from the designated carrier for your shipment. If you do not receive this tracking number please contact us, and we will provide it to you.
If you're purchasing an item being dropshipped you will not receive tracking information until the product has been shipped from the manufacturer.
How will my shipment arrive?
Smaller parts and accessories will arrive to your porch or mailbox. Please note that tankless water heaters may require a signature upon delivery.
For large items that cannot be shipped via standard UPS or FedEx services, we work with delivery companies to get your items to you. These partners deliver to your curb at the end of your driveway, and you are responsible for moving the items from there. Please note, if you live down a road or driveway that the delivery truck cannot access without causing damage to the truck we may need to make special arrangement for delivery, so please let us know. These carriers will call to schedule delivery so you can be home to inspect your items and accept delivery.
We recommend opening the boxes and inspecting the products for any signs of damage, such as broken parts or chips and cracks in the finish. While we do our best to make sure items are packaged safely and securely to prevent damage, we recognize that fragile products will occasionally break in transit to your doorstep. If you see any signs of damage, firmly refuse the damaged items and keep any that are in good condition. Do not let the driver leave without inspecting. If driver refuses to stay during inspection, sign "Subject to Inspection" on the delivery receipt and call us immediately to report damages.