
3948973 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $44.00 | Condition is Open box, RIELLO 3948973 N*S21 006433 RIELLO AIR TUBE COMBINATION 210400 NOS, FREE SHIPPING | 99.8% |
![]() | $150.00 | Condition is Open box, RIELLO 3948973 N*S21 006433 RIELLO AIR TUBE COMBINATION 210400 NOS, shipping cost = $62.20 | 100.0% |



The Riello 3948973 S21 006433 Air Tube Combination is a high-quality and reliable heating solution designed for domestic and small commercial applications. This product is part of Riello's extensive range of boilers, known for their efficiency, durability, and reliability.
The Riello 3948973 S21 006433 is an air tube combination boiler, which means it provides both heating and hot water on demand, eliminating the need for a separate hot water cylinder. This model has a capacity of 21 kW, making it suitable for medium-sized properties with a high demand for hot water.
The boiler is equipped with an advanced air tube heat exchanger, which ensures efficient heating and hot water production. The air tube design allows for a larger heat exchange surface, resulting in faster heat-up times and improved energy efficiency. The boiler also features a condensing technology, which captures and utilizes the heat from the flue gases, further increasing its efficiency and reducing energy waste.
The Riello 3948973 S21 006433 is built with high-quality materials and has a robust construction. It is made with a high-grade stainless steel casing, which provides excellent protection against corrosion and rust. The boiler is also equipped with a high-quality pump and a pressure relief valve, ensuring safe and reliable operation.
The boiler is easy to install and maintain, with clear and accessible fittings and connections. It is also compatible with a range of heating systems, including traditional natural gas, LPG, and renewable energy sources. The boiler is also equipped with a digital display, which provides real-time information on the boiler's operation, making it easy to monitor and maintain.
In conclusion, the Riello 3948973 S21 006433 Air Tube Combination is a high-quality and reliable heating solution that offers efficient and cost-effective heating and hot water production. It is built with durable materials, easy to install and maintain, and compatible with a range of heating systems. With its advanced air tube heat exchanger and condensing technology, this boiler is an excellent choice for medium-sized properties with a high demand for hot water.
The Riello 3948973 S21 006433 Air Tube Combination Boiler is a popular choice for many homeowners due to its energy efficiency and reliability. Here are some pros and cons to consider before making a purchase:
Pros:1. Energy Efficient: The Riello 3948973 S21 006433 Boiler has an efficiency rating of up to 94%, which means it can convert a large percentage of the fuel it uses into heat. This can save you money on your energy bills in the long run.
2. Reliability: Riello is a well-known brand in the boiler industry, and their products are known for their durability and reliability. The Riello 3948973 S21 006433 Boiler comes with a warranty of up to 10 years, which gives you peace of mind that it will last for a long time.
3. Compact Size: This boiler has a compact size, making it suitable for smaller homes or properties with limited space.
4. Easy to Install: The Riello 3948973 S21 006433 Boiler is designed to be easy to install, which can save you money on installation costs.
Cons:1. Price: The Riello 3948973 S21 006433 Boiler is more expensive than some other boilers on the market. However, its energy efficiency and reliability may offset the higher upfront cost in the long run.
2. Limited Capacity: This boiler has a maximum output of 21kW, which may not be suitable for larger homes or properties with higher heating demands.
3. Limited Compatibility: This boiler may not be compatible with all types of heating systems, so it's important to check with a professional installer to ensure it's the right fit for your home.
Recommendation:If you're looking for a reliable and energy-efficient boiler with a compact size, the Riello 3948973 S21 006433 Boiler is a great option to consider. While it may be more expensive than some other boilers, its high efficiency rating and warranty can save you money in the long run. However, it's important to ensure that it's compatible with your heating system and that you have the budget for its upfront cost.
In conclusion, the Riello 3948973 S21 006433 Air Tube Combination Boiler is a high-quality boiler that offers energy efficiency, reliability, and a compact size. Its price may be a drawback for some, but its long-term benefits make it a worthwhile investment for many homeowners.
Details:
Cl #: 210400. No warranty or guarantees apply. 13 seer single-package air conditioners and split system heat pumps packaged may not be installed in any state are only sold for replacement parts. Model #: 3948973.
Most problems can be worked out if we just communicate. Shipping as it is quoted for the lower 48 states excluding AK, hi and all us protectorates APO. If major damage, total loss is present do not accept the delivery but note severe damage and rejected on proof of form prior to signing. Your phone number is required for contact prior to delivery purposes.
Although rare, minor dings and scratches can happen but will not harm the operation of equipment.
specifications centrafurn:
- brand: Riello
- mpn: 3948973
- part type: Air Tube
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
returns centrafurn:
- policy: no returns
seller centrafurn:
- rating: 98.2%
- # reviews: 45742
- city: lafayette, indiana
payments centrafurn:
- wallet: paypal
- credit card: mastercard
shipping centrafurn:
- carrier: ups
- service: ups ground
- type: calculated
- transit: 12-17 days
- class: standard
offer centrafurn:
- options: ship-to-home
- best offers: true
- sold #: 30
- in stock #: 2
- prices: $44.00–$150.00
- item condition: Open box
- availability: in stock
- started: june 8, 2024
Also Available:
- 3949172-N-S15-015867: AIR TUBE, Riello

