A wall-hung condensing boiler heats a home through a hydronic system, while a tankless water heater heats domestic water; these appliances are not interchangeable. Of the listed products, the Rinnai I-Series Plus is the only boiler. The condensate bowl and flame sensor are boiler-related parts, and the two other Rinnai and RIWORY products are tankless water heaters rather than boilers. This comparison identifies what each item is for so buyers can avoid choosing an appliance that does not meet their heating needs.
| Product | Category | Best suited for |
|---|---|---|
| Rinnai IP090S I-Series Plus | Condensing boiler | Hydronic home heating |
| MAGICLULU Condensate Bowl | Boiler accessory | Replacement condensate collection |
| PLT3022 Flame Sensor | Boiler service part | Specified compatible Lochinvar models |
| Rinnai RX160iN | Tankless water heater | High-demand domestic hot water |
| RIWORY 85,000 BTU | Tankless water heater | Smaller hot-water demands |
Rinnai I-Series Plus 90k BTU Boiler
Best for: Homeowners seeking a gas-fired boiler for a hydronic heating system. This is the clearest match in the product list for someone searching for a wall-hung condensing boiler.
The Rinnai IP090S is a 90,000 BTU condensing solo heat boiler. Its listed features include up to 96% AFUE and Smart Sense Adaptive Gas Valve technology. It supports natural gas or propane, and its compact design is intended to allow installation in different residential settings.
Bluetooth capability and compatibility with the Rinnai Central app provide options for managing heating preferences. These features may be useful to buyers who want app-based control, but the product information does not establish that every smart-home platform is supported.
Why it was selected: It is the only listed product identified as a condensing boiler, rather than a water heater or replacement part.
Limitation: This is a solo heat boiler, not a tankless water heater. Confirm that its heating capacity, fuel supply, controls, and system requirements suit the home before selecting it.
MAGICLULU Boiler Condensate Bowl
Best for: Buyers looking for a condensate collection component for a wall-hung gas boiler, after verifying the part fits their specific appliance.
This listing includes two plastic condensate bowls. The product description says the bowls collect and drain condensate and are designed for quick attachment. It also describes the fit as universal across various mainstream wall-hung boilers.
Why it was selected: Condensate handling is directly relevant to condensing boiler ownership, and this is the only listed condensate-drain accessory.
Limitation: The listing does not name specific compatible boiler models or provide dimensions. Do not rely on the “universal” description alone; compare the part with the boiler’s manual or existing component before ordering. A condensate bowl is an accessory, not a boiler or a complete repair solution.
PLT3022 Flame Sensor for Lochinvar Boilers
Best for: Owners or service professionals maintaining a specifically listed Lochinvar boiler model that needs a PLT3022/100165930 flame sensor.
The kit includes a flame sensor and gasket. The supplied compatibility list names models in the KBN, WB, WH, and AWN series. The product description says it may address shutdown after ignition, a lost flame signal, or recurring flame-related error codes when those problems are caused by a worn or contaminated sensor.
Why it was selected: It is a boiler service component explicitly described for residential and light-commercial wall-hung condensing boilers, among other listed Lochinvar equipment.
Limitation: This is not a universal boiler part. Match the boiler model and part number carefully. The listing warns not to confuse PLT3022 with the similar-looking PLT3021 ignitor; installation and combustion-system work should be handled appropriately.
Rinnai RX160iN Tankless Water Heater
Best for: Buyers who need a high-capacity source of domestic hot water, not a boiler for radiators or hydronic space heating.
The RX160iN is a condensing tankless water heater rated for up to 9 GPM, according to the listing. It is described as supporting indoor or outdoor installation and operation with propane or natural gas through its Smart Sense gas control system. The listed efficiency factor is UEF .97. A Quick Flush feature is included, and the product description says Wi-Fi control requires a separately sold Controlr module.
Why it was selected: It is a condensing gas appliance that may appear in searches for condensing boilers, but clearly serves a different purpose: domestic hot water.
Limitation: Do not choose it as a replacement for a space-heating boiler. The listing states that an RX-OVC vent cap is required for outdoor installation, and Wi-Fi control is not included.
RIWORY 85,000 BTU Tankless Water Heater
Best for: Buyers seeking an indoor natural-gas tankless water heater for a smaller home, cabin, or apartment with moderate hot-water demand.
The RIWORY unit is listed at 85,000 BTU and up to 3.6 GPM, with the manufacturer describing it as suitable for two to three water points. Its four-stage combustion technology has a stated minimum heat load of 8,500 BTU. The listing also describes freeze-protection heaters that activate below 39°F and a windproof feature at the air outlet.
Why it was selected: It is another gas-fired, condensing-related product in the supplied group, but it should be considered only for water heating—not as a wall-hung boiler for home heating.
Limitation: Its stated flow rate is lower than the Rinnai RX160iN’s listed maximum, and actual hot-water output depends on conditions and simultaneous use. The product information specifies natural gas, so buyers seeking propane operation should not assume compatibility.
Buying Guide: How to Choose a Wall-Hung Condensing Boiler
Do you need space heating, domestic hot water, or both?
Start by identifying what the appliance must heat. A boiler supplies heat to a hydronic system, such as radiators or in-floor heating. A tankless water heater supplies domestic hot water to taps, showers, and appliances. A product labeled “condensing” may still be a water heater rather than a space-heating boiler.
If one appliance must serve both space heating and household hot water, verify that the specific model is designed for that arrangement. The Rinnai IP090S in this list is described as a solo heat boiler. The RX160iN and RIWORY units are described as tankless water heaters.
How should you compare boiler capacity?
Do not select a boiler by square footage alone. A qualified heating professional can assess the home’s heat loss, climate, insulation, windows, and the temperature requirements of the heating system. The boiler’s output and operating range should suit that calculated demand.
The Rinnai IP090S is listed at 90,000 BTU, but the supplied information does not provide a complete sizing guide. Treat that figure as a product specification, not proof that the boiler is suitable for a particular house.
Which fuel and installation details matter?
Check whether the appliance is configured for the home’s available fuel. The Rinnai IP090S lists natural gas and propane support. The RIWORY heater is described as natural gas, while the RX160iN lists both propane and natural gas. Confirm the exact model configuration and local installation requirements before purchase.
Also check venting, condensate drainage, clearances, electrical needs, and whether the appliance is intended for indoor or outdoor placement. Installation details differ by product. The RX160iN listing specifically calls for an RX-OVC vent cap for outdoor installation.
What should you verify before buying a replacement part?
Use the appliance’s model and part numbers rather than appearance alone. For the PLT3022 flame sensor, compare the boiler model against the supplied compatibility list and distinguish it from the PLT3021 ignitor. For the MAGICLULU condensate bowl, verify dimensions and connection details because the listing does not name specific boiler models.
When replacing a combustion or condensate component, consult the boiler’s service documentation. Incorrect parts or installation can affect safe operation and may require professional service.
How do controls and maintenance features compare?
The Rinnai IP090S lists Bluetooth and Rinnai Central app compatibility. The RX160iN has an easy-to-use interface and Quick Flush feature, but its optional Controlr module is not included. Choose controls based on the appliance’s intended job and the functions you actually need.
Condensing appliances produce condensate that must be managed as specified by the manufacturer. A collection bowl is only one component of that system. Review maintenance instructions for the complete appliance rather than assuming a replacement accessory resolves every drainage issue.
Frequently Asked Questions
Is a tankless water heater the same as a wall-hung boiler?
No. A tankless water heater heats domestic water for household use. A boiler heats water for a space-heating system. Some appliances can serve multiple purposes, but buyers must confirm that the exact model is designed for the intended application.
Which listed product is the actual condensing boiler?
The Rinnai IP090S I-Series Plus is the listed condensing solo heat boiler. The other products are tankless water heaters or boiler accessories and replacement parts.
Can the Rinnai RX160iN replace a home heating boiler?
Not based on the supplied product information. It is described as a tankless water heater for domestic hot water, not as a space-heating boiler.
How do I know whether a condensate bowl will fit my boiler?
Check the boiler manual, existing part, dimensions, and connection details. The MAGICLULU listing does not provide specific compatible models, so confirm fit before purchasing.
Can I install a boiler flame sensor myself?
Installation involves a combustion appliance. Follow the boiler manufacturer’s service instructions and use a qualified technician when required. Confirm the exact part number and compatible boiler model before replacing a sensor.