Baxi Megaflo 18 System

(2 customer reviews)


The Baxi Megaflo 18 System gas boiler is the perfect choice for homeowners looking for a reliable, energy-efficient solution that provides hot water on demand.

SKU: 7556028 Category: Tags: , ,


The Baxi Megaflo Systemgas boiler is a reliable and efficient heating system that provides hot water and central heating to homes across the UK. With its powerful heat output and versatile installation options, this boiler is ideal for any home or commercial property.

At its core, the Megaflo Systemgas boiler is designed to provide consistent heating and hot water to homes of all sizes. It features a range of innovative technologies and features that make it an excellent investment for any homeowner or property manager.

One of the key benefits of the Megaflo Systemgas boiler is its advanced heat exchanger, which helps to maximise its energy efficiency by recovering heat that would otherwise be lost. This means that it can provide more heat to your home using less fuel, helping you save money on your energy bills and reduce your carbon footprint.

Another feature that sets the Megaflo Systemgas boiler apart is its compact and versatile design. It can be installed in a variety of locations, including small airing cupboards and loft spaces, making it an ideal choice for homes with limited space. Additionally, its lightweight design and ease of installation means it can be fitted quickly and easily, reducing installation time and costs.

The Megaflo Systemgas boiler is also incredibly reliable, featuring a robust construction that can withstand the rigours of day-to-day use. It is backed by a comprehensive warranty, giving homeowners the peace of mind they need to invest in a high-quality heating system that will last for many years to come.

In terms of performance, the Megaflo Systemgas boiler delivers exceptional results. It has a maximum output of 18kW, making it suitable for homes with up to three bedrooms and one bathroom. It also features an advanced digital display that allows you to keep track of your heating and hot water usage, giving you greater control over your energy consumption and costs.

Overall, the Baxi Megaflo 18 Systemgas boiler is an excellent choice for homeowners looking for a reliable and efficient heating system. With its advanced features, compact design, and high-quality construction, it delivers exceptional results and is sure to meet the needs of any household or commercial property.

Gas Boilers, 230V, A

Baxi Megaflo 18 System properties

Product nameMegaflo 18 System
TypeGas Boilers
Water HeaterYes
Energy Class LabelA
Noise Level53.0 dB
Heating Effect Gas18.0 kW
Weight38.6 kg
Height780.0 mm
Width450.0 mm
Depth345.0 mm

Additional information

Product name

Water Heater

Energy Class Label


Noise Level

Heating Effect Gas





2 reviews for Baxi Megaflo 18 System

  1. Victoria Harrell

    I recently purchased the Baxi Megaflo 18 System for my home heating, and I must say, I am thoroughly impressed with its performance. This gas boiler provides an outstanding 18.0 kW heating effect and is rated A for energy efficiency, which means I’m saving money on my energy bills as well. With a 5-star rating out of 5, this boiler has truly exceeded my expectations.

    Compared to other gas boilers, the Baxi Megaflo 18 System stands out with its powerful heating capacity and impressive energy efficiency. It heats up my home quickly and efficiently, and I’ve noticed a significant reduction in my energy usage since installing it. It’s also extremely user-friendly, with a clear display and easy-to-use controls.

    Overall, I highly recommend the Baxi Megaflo 18 System for anyone in need of a reliable and efficient gas boiler. It’s a fantastic investment for any homeowner looking to save money on energy bills and keep their home cozy and warm.

  2. Cayden

    As a postman in New Orleans, I have seen many houses with different kinds of heating systems. Recently, I got the Baxi Megaflo 18 System installed in my house. After using it for over a month, I just feel okay about it and will rate it as 3 out of 5 possible marks.

    One of the most significant benefits of using this gas boiler is its Yes Water Heater feature. It works very efficiently and provides me with endless hot water supply that caters to my household needs. However, the 230V Voltage requirement is a bit annoying for me as sometimes it leads to fluctuation issues. I had to install a voltage stabilizer separately to address this problem.

    Compared to other known gas boilers available in the market, like Valeton, the Baxi Megaflo 18 System is a bit pricier and does not offer enough value for its cost. In terms of efficiency, both the gas boilers work at a similar level, and there is not much difference.

    The delivery of the gas boiler was quite seamless, and it arrived in good condition. The only issue was that it took a bit longer to reach New Orleans, which was understandable because of its distance from the manufacturing unit. However, the wait was worth it as the installation process went smoothly, and I got to use it immediately.

    In conclusion, the Baxi Megaflo 18 System is a decent gas boiler that works well, but its costly nature and the voltage issue bring down its value. If you get a good deal, it is a good investment for heating your home with a steady supply of hot water.

Add a review

Your email address will not be published. Required fields are marked *

Frequently Asked Questions:

"How do I install a Baxi Megaflo 18 System gas boiler in my home?"

To install a Baxi Megaflo 18 System gas boiler in your home, you will need to follow these steps:

1. Turn off the gas and electricity supply to your current boiler, as well as any other appliances that use gas or electricity. Drain your existing central heating system using a pump and a hose pipe. Remove your old boiler and dispose of it safely. Install the Baxi Megaflo 18 System gas boiler in its place, following the manufacturer's instructions carefully. This may involve connecting new pipes and wiring, as well as fitting a new flue. Reconnect your central heating system, ensuring that all the components are securely fastened and properly sealed. Turn on the gas and electricity supply, and test the boiler to ensure that it is working correctly. If you are not confident in carrying out these steps yourself, it may be best to enlist the help of a qualified plumber or heating engineer. They will have the necessary skills and experience to install your new boiler safely and efficiently.

How do I properly vent my Baxi Megaflo 18 System to ensure optimal performance and prevent issues with water quality or pressure?

To ensure optimal performance and prevent issues with water quality or pressure when venting a Baxi Megaflo 18 System, follow these steps:

1. Install the system in accordance with the manufacturer's instructions and make sure all necessary components are included. Ensure that all pipes and fittings used in the installation are compatible with the system's materials of construction, which include copper and plastic. Vent the system using a vertical or horizontal vent pipe, depending on the layout of your house. The vent pipe should be installed in accordance with local building codes and should extend at least 1 meter (3 feet) above the roofline. Make sure that the vent pipe is properly insulated to prevent condensation, which can lead to water damage and mold growth. Connect the vent pipe to the system's expansion vessel using a special adapter kit provided by Baxi. The adapter kit will ensure that the vent pipe is securely connected and prevents any leaks or water damage. Test the system for proper operation, including checking the water pressure and quality. Make sure that there are no issues with low water pressure, discolored water, or unusual odors. Regularly inspect the vent pipe for signs of wear or damage, such as cracks, leaks, or corrosion. If you notice any issues, contact a qualified plumber to make repairs and prevent further damage. By following these steps, you can ensure that your Baxi Megaflo 18 System is properly vented and performing at its best. This will help prevent issues with water quality, pressure, and safety, and provide you with reliable and efficient hot water for years to come.

How do I install a new Baxi Megaflo 18 System boiler in my home with no prior experience in boiler installation?

Installing a new Baxi Megaflo 18 System boiler requires some expertise and knowledge about plumbing and electrical work. If you have no prior experience in boiler installation, it's best to seek the help of a professional heating engineer for this task. Here are some steps that a professional heating engineer would follow while installing your new Baxi Megaflo 18 System boiler:

1. Site Survey: The first step is to conduct a site survey to assess the current state of your central heating system and determine whether it's compatible with the Baxi Megaflo 18 System boiler. This will involve checking the existing pipework, radiators, and water tanks to ensure they match the requirements of the new boiler. Disconnecting the Old Boiler: If you already have a boiler installed, it needs to be safely disconnected and removed from the system. The heating engineer will drain the system, disconnect the gas supply and electrical connections, and remove the old boiler. Installing the New Boiler: After removing the old boiler, the new Baxi Megaflo 18 System boiler can be installed. This involves fixing it to the wall using brackets, connecting it to the water supply, and attaching the flue pipe. The heating engineer will also install a new control panel and thermostat as required. Reconnecting the Central Heating System: Once the new boiler is installed, the heating engineer will reconnect your central heating system. This involves connecting the pipes to the radiators and water tank, filling the system with water, and testing it for leaks. Electrical and Gas Connections: The heating engineer will also connect the electrical wiring to the new control panel and thermostat. They'll also reconnect the gas supply to the boiler. Testing the System: After completing all the installations, the heating engineer will test the system for any leaks or faults. This includes running a series of tests on the boiler itself, as well as checking the water pressure and flow rate. Final Inspection: Once everything is working correctly, the heating engineer will conduct a final inspection to ensure that the installation meets all safety and regulatory standards. They'll also provide you with instructions on how to operate and maintain your new Baxi Megaflo 18 System boiler. If you're still unsure about whether to hire a professional heating engineer or not, it's best to seek advice from Baxi themselves or your local building control department for guidance. They can provide you with more information on the legal requirements and safety standards that need to be met during the installation process.

How to setup Baxi Megaflo 18 System heating boiler?

If you purchased your Baxi Megaflo 18 System heating boiler and are wondering how to optimize its operation so that it works ecologically and economically we invite you to read our article about the heating curve.

What is a heating effect of Baxi Megaflo 18 System?

This gas boiler has the power of 18.0 kW. If your house is old-fashioned or lacks insulation, this boiler will be enough for 100 square meters of space. However, if your home is modern and insulated this boiler will be enough for 180 square meters of space. If your house is within this range, check also the other gas boilers in our offer, the power of which is 18.0 kW.