Rheem's Prestige High Efficiency Natural Gas Combi Boiler provides an efficient, continuous supply of domestic hot water used for faucets, showers, washing machines, etc.) and provides hydronic space heating for residential applications such radiant floors, baseboards, hydronic air handlers, etc. As a condensing combi boiler, heat is extracted from the units exhaust gases, allowing for higher efficiency and therefore helping you save on energy costs. With room air intake and the ability to use to use PVC venting, you can save considerable costs in venting materials and installation labor. Its 95% AFUE qualifies for valuable state and local rebates in select areas. professional sizing and installation recommended.
Efficient heat and continuous hot water: it provides efficient hydronic heating even in the coldest climates plus a continuous hot water for all your household needs
Perfect for replacement and saving space: upgrade and modernize by replacing your old boiler and tank water heater with a single, smaller solution that will free up valuable space
Energy and cost savings: high efficiency 95% AFUE rating qualifies for valuable state and local rebates in select areas and can save on utility bills
Flexible installations and compatibility with more situations: vent lengths are up to 100 ft. using 3 in. PVC and up to 50 ft. using 2 in. PVC
More installation options: a room air intake option means fewer wall penetrations and quicker installation times
Great for homes with up to 2.5-bathrooms
Ultra-low NOx natural gas model (see LP models if your home isn't a natural gas home)
Auto boost feature if the thermostat set point has not been achieved in a reasonable time, the combi will auto boost the hydronic loop to reach the desired temperature more quickly
Included in the box: outdoor temperature sensor, 3 in. vent screens, pressure relief valve, mounting bracket and hardware
Warranty: 10-year on heat exchanger and 5-year on parts, 1-year labor
Q:Will this unit work with two heat zones and hot water 1 shower?
by|Sep 20, 2023
1 Answer
Answer This Question
A:Â Hi Mark and thank you for your question. Yes it can. Please call 800-432-8373, opt 2, 2, 2.
by|Sep 21, 2023
Q:Will this work on a 3000sf house with 3 bathrooms and 5 zones.
by|Aug 29, 2023
1 Answer
Answer This Question
A:Â Hi Chris and thank you for your question. Please call 800-432-8373, opt 2, 2, 2.
by|Aug 29, 2023
Q:Where to wire the C wire in the boiler?
There isn't a terminal labelled "common". However, there are two AC 24V terminals; are these for the C wire?
by|Aug 5, 2023
1 Answer
Answer This Question
A: Hi boilero and thank you for your question. This appliance must be properly grounded. Ensure the electrical outlet (120V / 15 Amp minimum) that the appliance will be plugged into is properly grounded. This appliance is equipped with a three prong plug. It should only be plugged directly into a properly grounded three prong receptacle. DO NOT remove the ground plug from the plug. Doing so could result in property damage, serious personal injury, or death. ▪ A. GENERAL OPERATING CONDITIONS ▪ B. WIRING INFORMATION ▪ C. DIP SWITCHES • Temperature - Operating Ambient Temperature Range: 14 ~ 140°F(-10 to 60°C) - Operating Relative Humidity: Up to 90% at 104°F (40°C) 1. This appliance must be properly grounded. Ensure the electrical outlet (120V / 15 Amp minimum) that the appliance will be plugged into is properly grounded. There is one set of DIP switches. The appliance is default set at the factory to operate on Natural Gas with a 3" vent. 2. The wiring diagrams contained in this manual are to be used for reference purposes only. 3. Refer to these diagrams and the wiring diagrams of any external controls used with the installation when wiring the appliance. Read, understand, and follow all wiring instructions supplied with the controls. 4. Do not disconnect the power supply when the appliance is in normal operation.
by|Aug 12, 2023
1 found this answer helpful
Q:What specifically/technically does the auto boost feature do? When activated, does it allow the heat loop to use more than the 120,000 btu listed?
by|Jun 25, 2023
1 Answer
Answer This Question
A: Hi Spilsner and thank you for your question. The setting is to increase the set temperature of the unit on cold start ups if the actual room temperature doesn’t reach the thermostat set temperature quick enough, the Boost time function will increase the set temperature of the Combi Boiler 10°F (5.5°C) after the selected Boost time setting has passed. Example : Room thermostat set at 72°F, Combi Boiler set temp at 140°F, and Boost time function set to 30 min. If the room temperature does not reach 72°F within 30 min then the Combi Boiler will increase it’s set temp from 140°F to 150°F
by|Jun 26, 2023
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Dec 10, 2021
Water leakage er45
Water leaking error code 45 2 days working only shuts off automatically
by
2 found this review helpful
Sep 25, 2023
So far the unit is working properly and performing as expected. As we go through the upcoming winter, we’ll have a better assessment and will update this review if possible. JCWinNM
by
Jul 26, 2023
by
Verified Purchase
Jun 21, 2023
Doesn’t even work
I had this combi boiler installed 2 months ago. It doesn’t work. I have hot water to my sinks but it does not heat my home radiator system at all.
I am not happy at all as this was a very expensive purchase for me.
by
Response from RheemJun 21, 2023
Hello Jim,
We apologize for the inconvenience and hope the issue has been resolved. If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.
Isaiah
1 found this review helpful
Mar 3, 2023
Trash don't buy
Absolutely the worst product I've ever had! Customer service was a joke as well! I will never be buying rheem again thanks to this pile of junk!
by
Response from RheemMar 4, 2023
Hi Timmy,
Thank you for this review. We apologize for the inconvenience you have experienced because of the performance of your water heater. The water heater that you have reviewed included a 12-year heat exchanger warranty, a 5-year part warranty, as well as a 1-year labor warranty. For assistance, please contact our Technical Support team at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Our experienced analysts will be happy to assist you with warranty coverage on your water heater.
Derius
Feb 20, 2023
by
Verified Purchase
1 found this review helpful
Jan 17, 2023
Less than 2 years old, leak developed.
Less than 2 years old, slow leak developed. Wasn't noticed until corrosion occurred. Now I have to pay to have it repaired. Look elsewhere.
by
Response from RheemJan 24, 2023
Hi Charles,
Thank you for taking the time to write this review. We apologize for the inconvenience you have experienced and hope the issue has been resolved. The water heater you have reviewed includes a 12-year heat exchanger warranty, and a 5-year parts warranty If you still need assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to assist you.
Derius
1 found this review helpful
Jun 2, 2022
Installed this over the course of a week after work....
Installed this over the course of a week after work. Instructions helped a lot along with some Youtube. Make sure you seal the PVC exhaust or condensation will leak down onto the unit and cause problems. The unit heats the water quickly and I felt like there was less peaks and valleys in terms of temp in my house. Overall I'm very stratified with this purchase.
by
Verified Purchase
Apr 30, 2022
Numerous failures in 60 days of use
Within 30 days of moving into my new house the boiler failed (the internal pump failed - I spent $290 to replace that). Now it has an "ignition failure error" (which is just a sensor error). It also likes to throw a random low pressure supply error. All of these errors cause it to turn off. So every night our heat shuts off and I have to go into the basement and turn the power off and back on and then it works again. Since its a combi boiler - each error also causes you to lose hot water.
by
Response from RheemMay 4, 2022
Hi James,
Thank you for taking the time to write this review. We apologized for any inconvenience that you have experienced and we would like an opportunity to better assist you. The particular water heater you are reviewing comes with a 10-year warranty on heat the exchanger, 5-year warranty on parts and 1-year labor warranty. Please give our Technical Support team a call at your earliest convenience at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST and one of our experienced analysts will be happy to go over any warranty options and questions you may have.
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