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Hydronic Air Handler- 50 MBH No Circulator

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Product Overview

When integrated with a Rinnai Hydronic Air Handler, Rinnai Condensing Gas Boilers offer hydronic solutions for comfortable space heating as well as a continuous supply of domestic hot water. This integrated solution is ideal for both new construction and retrofit applications. Rinnai Hydronic Air Handler no-pump versions can be customized with the I-Series combi boiler to specific installation needs for maximum efficiency and comfort.
  • For use with Rinnai I-series combi boilers
  • Design allows for a closed loop system for heating which is isolated from the DHW system
  • Vertical configuration (up-flow with left, right or side return) and horizontal configuration (up-flow with bottom return)
  • Corrosion-free, heavy gauge steel cabinet is insulated with 5/8 in. faced foil for noise suppression
  • Freeze protection - factory-installed and activated at 40° F
  • Auxiliary contact for boiler activation
  • Operates based on input from a thermostat connected to the hydronic air handler
  • 60-second time delay for blower activation enhances user comfort during space cooling and heating
  • Pair with Rinnai domestic priority switch for endless hot water while maintaining user comfort during space heating

Additional Resources

From the Manufacturer

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Product Depth (in.)
20.5 in
Product Height (in.)
27 in
Product Width (in.)
17.5 in


Accessory/Part Type
Hydronic Air Handler
Brand/Model Compatibility
Rinnai I-Series Combi Boilers
Pack Size
Product Weight (lb.)
66 lb

Warranty / Certifications

Manufacturer Warranty
5 yr / 1 yr

Questions & Answers

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Customer Reviews

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    out of 1 reviews
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I got this to pair with my rinnai rur199in unit...
I got this to pair with my rinnai rur199in unit on a garage apartment project I’m doing. Pretty simple system that seems to push plenty of air. The 50 was probably overkill for my 850 sq ft application but it has 3 speeds so you can dial it up or down. I also installed an ecobee thermostat with a 3 wire thermo wire back to the unit. The ecobee can call for air and kick on the blower but there is no supplied connection to connect to the instant hot water heater so it can call for hot water as well. Rinnai sells a domestic priority switch separately, but not sure if that will Remedy the situation. Overall, I like the combo and between both units I have a lot of install time to get it where it’s at. Will probably be calling a rinnai professional installer to assist in getting in dialed in. Cheers
    Showing 1-1 of 1 reviews