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  3. RHEEM RTG20213-A

RHEEM RTG20213-A Manifold Controller Tankless Water Heaters 662766477337 MIC-6 31-93666

Rtg20213-a Rheem Mic-6 Manifold Controller Rtg20213a For Tankless Water Heaters 31-93666

( Brand: Rheem ), ( Manufacturer Part Number: RTG20213-A ), ( Type: Water Heater Controller ), ( Power Source: Corded Electric ), ( Color: Silver ), ( Compatible Model: Rtg-95, Rtg-84, And Rtg-64 Series Models Only ), ( UPC: 662766477337 )

Review RHEEM Manifold Controller Rtg20213a For Tankless Water Heaters

The Rheem RTG20213A Mic-6 Manifold Controller, model number 31-93666, is a crucial component for optimizing the performance and efficiency of your Rheem tankless water heater. This manifold controller is designed to work specifically with Rheem's RTG series of tankless water heaters.

The Mic-6 manifold controller is an advanced electronic device that automatically adjusts the water flow to the heat exchanger to maintain optimal temperature and efficiency. It utilizes six independent circuits or "zones," enabling you to supply hot water to multiple applications simultaneously. Each zone can be individually adjusted to meet the specific hot water demand of that application, ensuring an even distribution of water flow and temperature.

The controller features a user-friendly LCD display, which provides real-time information on temperature settings, water flow rates, and diagnostic codes. It also includes an integrated leak detection system, which alerts you to potential water leaks, providing an added layer of protection for your home.

The RTG20213A manifold controller is built with durability in mind, featuring a die-cast aluminum housing that resists corrosion and a high-temperature, UV-resistant polycarbonate cover. It is compatible with both natural gas and propane fuel sources and can handle a wide range of water flow rates.

Installation of the manifold controller is straightforward, with clear instructions provided in the user manual. It is designed to be easily integrated into your existing water heater system, allowing you to upgrade your tankless water heater's performance and efficiency with minimal disruption.

The Rheem RTG20213A Mic-6 Manifold Controller is an essential accessory for Rheem tankless water heater owners looking to maximize their system's potential. Its advanced features, including automatic flow adjustment, individual temperature control for each zone, and leak detection, make it an indispensable tool for maintaining a reliable and efficient hot water supply in your home.

Pros and Cons of Buying Rheem RTG20213A Mic-6 Manifold Controller for Tankless Water Heaters

1. Pros:

a. Enhanced Energy Efficiency: The RTG20213A mic-6 manifold controller is designed to optimize energy usage by maintaining the ideal water temperature for your tankless water heater. This results in energy savings and reduced utility bills over time.

b. Improved Temperature Consistency: The controller offers precise temperature control, ensuring a consistent water temperature for your household needs.

c. Compatibility: This manifold controller is compatible with various Rheem tankless water heater models, making it a versatile option for many homeowners.

d. Easy Installation: The RTG20213A manifold controller comes with a user-friendly design and straightforward installation process, making it an accessible option for DIY homeowners.

2. Cons:

a. Cost: The RTG20213A mic-6 manifold controller may have a higher upfront cost compared to basic temperature and pressure (T&P) relief valves. However, the long-term energy savings and improved functionality may justify the investment.

b. Limited Compatibility: While the controller is compatible with several Rheem tankless water heater models, it may not be suitable for other brands or models. Be sure to check the manufacturer's compatibility list before making a purchase.

c. Potential Complexity: Although the installation process is relatively straightforward, some users may find the manifold controller's features and settings more complex than a basic T&P relief valve.

3. Conclusion:

The Rheem RTG20213A mic-6 manifold controller offers several benefits for homeowners, including enhanced energy efficiency, improved temperature consistency, and ease of installation. However, it may have a higher upfront cost and limited compatibility with certain water heater models. Ultimately, the decision to purchase this manifold controller depends on your specific needs, budget, and the compatibility with your existing water heater system.

4. Recommendation:

If you're looking for a manifold controller that offers precise temperature control, energy savings, and compatibility with your Rheem tankless water heater, the RTG20213A mic-6 manifold controller is a worthwhile investment. However, ensure you check the compatibility list before purchasing and consider the potential complexity of the controller's features during installation.

Details:

Rheem RTG20213A MIC-6 Manifold Controller System, control systems connect multiple tankless water heaters together to increase hot quantity during peak demands or simultaneous use of fixtures. Connect up to 6 tankless water heaters together in a Manifold. For the RTG-95, RTG-84, and RTG-64 Series model's only, This kit will not work on any model manufactured before Jan 2010. A manifold controller cable is required for each tankless water heater installed in.

part #: rtg20213 prices

  • $180.00-$1569.99

specifications wateheat:

  • brand: Rheem
  • mpn: Rtg20213-a
  • type: Water Heater Controller
  • power source: Corded Electric
  • color: Silver
  • compatible model: Rtg-95, Rtg-84, And Rtg-64 Series Models Only
  • upc: 662766477337

offer wateheat:

  • sold: 0
  • options: Ship-to-home
  • started: December 4, 2025
  • availability: In Stock
  • quantity: 1

payments wateheat:

  • wallet: Apple-pay
  • other
  • credit card: Mastercard

general wateheat:

  • Heating, Cooling Air > Water Heaters > Water Heater Parts
  • condition: Open box

shipping wateheat:

  • cost: $0.00
  • transit: 4-9 Days
  • carrier: USPS
  • class: Standard
  • service: USPS Ground Advantage
  • type: Calculated

seller wateheat:

  • city: San Marcos, Texas
  • # reviews: 5156
  • rating: 99.5%

returns wateheat:

  • paid by: Buyer
  • time: 30 Days
  • policy: Returns Accepted
  • method: Money back
type: water heater controller, power source: corded electric, compatible model: rtg-95, rtg-84, and rtg-64 series models only,
category: home & garden > heating, cooling air > water heaters > water heater parts, color: silver, sku: 6143760179455772,

Rheem RTG20213 Is Similar To:

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3 offers $180.00–$1569.99 USD
  • Offer #1: $180.00 price + $0.00 shipping estimate = $180.00* total. Connect up to 6 tankless water heaters together in a Manifold.FREE SHIPPING
  • Offer #2: $1569.99 price + $0.00 shipping estimate = $1569.99* total. For higher demand application, easily link multiple tankless units to operate as one system. Rheem Wall Hung Condensing Tankless Gas Water Heater.FREE SHIPPING
  • Offer #3: $695.00 price + $Calculated shipping estimate = $695.00* total. Supplied with a 120-volt power cord (Outdoor models only). EZ-Link cable available for higher demand applications to connect two tankless units to operate as one.+$Calculated shipping

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