Sime Boilers Review & Prices Re January 23, 2023

Sime Boilers Review & Prices

Sime - Image of sofa in living room

It’s not exactly shopping around for a holiday destination, or even as exciting as hitting the high street for a new outfit for that upcoming party, but picking the right boiler from more than a hundred different brands is pretty crucial, especially if you want to keep warm! We’re here to take the hassle out of the hunt, and to help you cut through the clutter when it comes to buying a new boiler.

If you’re shopping around for a new Sime boiler, we’re here to help! In this blog, we’ll talk about the history of the “Italian Stallion” boiler range, warranty, prices and everything you need to know before making the big purchase.

About Sime boilers

Whether you’re an environmentally-conscious homeowner or looking for a powerful boiler for your commercial property, Sime has a product to suit your needs and is a global leader in manufacturing state of the art boilers.

They offer innovative domestic and commercial heating solutions designed and manufactured in Italy, tailored to the British climate and conditions, providing the most advanced and efficient heating and hot water solutions.

With a proven reputation for reliability, durability and performance, Sime domestic and commercial boilers combine the stylish design and innovative engineering synonymous with their Italian heritage.

Sime History

Sime was founded in 1972 in Legnago, Verona, Italy. For five decades, they’ve successfully delivered innovative and environmentally-efficient heating and hot water solutions. They now operate in Italy, UK, Spain and China, as well as distributors worldwide, in markets like North America, Chile and Australia.

In 1973, Sime produced a compact and efficient plate cast iron radiator – the first company to do so.

In 2002, Sime opened their first UK-based office to operate in the region. 

With their reputation of reliability, durability and superb build quality, Sime domestic and commercial boilers became widely spread worldwide. Their heating and hot water products are in over three million homes worldwide.

Sime boilers are powerful, lightweight, compact and easy to install. Thanks to their advanced production systems and the highest quality brass and stainless steel components. 

In 2014, Sime was the first to offer a hybrid wall hung unit that combined a gas boiler, heat pump and MEM control. Their aim is to reduce their carbon footprint and impact on the environment.

Sime boiler range

Murelle Revolution 30

The Murelle Revolution 30 is the first completely integrated boiler and heat pump in a single cased product.  Using an ErP A++ 30 kW Murelle boiler and sealed 4kW output heat pump, the Murelle Revolution 30 is a single unit that is installed inside and hung on the wall like a conventional boiler. The Murelle Revolution 30 can be installed by any registered Gas Safe engineer in a single installation, without the need for an additional F-gas-registered installer to be present and provides heat and hot water, achieving an average seasonal heating performance of 134%, granting A++ energy efficiency.

The boiler and heat pump work in tandem with the heat pump operating first. When the external temperature is higher than the minimum set value of -7°C the heat pump and the boiler will be activated in quick succession and when the setpoint is reached, the boiler will adjust power until the heat requirement is achieved. If the external temperature is higher than 7°C only the heat pump operates – the boiler is only activated when the desired temperature is not achieved by the heat pump on its own, ensuring maximum energy efficiency.

Murelle Revolution 30 Key Features

  • Integrated heat pump and gas combustion in a single unit
  •  Optimum size and no external unit
  •  Dimensions: 600 mm W x 900 mm H x 390 mm D
  •  A++ heating efficiency class
  •  Average seasonal heating performance of 134%
  •  Constant COP of heat pump
  •  Series operation of heat pump and boiler
  •  Installed inside and hung on the wall like a conventional boiler
  •  Installation the same as a gas boiler (no F gas certification required)
  •  Air source heat pump operates down to -7°C

Murelle One HE

The Murelle One HE is compact in size and is ideally suited for rooms where space is at a premium. This small but perfectly formed combination high-efficiency boiler is available in 25 kW and 30 kW models to meet the on-demand heating and hot water requirements of any home.

Murelle One HE Key Features

  • 2-year warranty with the option to extend up to 5 years
  • Compact and lightweight
  • Fast, controlled hot water delivery
  • Service interval timer as standard
  • LCD temperature and diagnostic display
  • User-adjustable thermostatic control 20 °C to 80 °C
  • Efficient heating control connectivity (Open Therm connection)
  • Weather compensation sensor connection

The Murelle Pro HE range also includes

  • Combination, system and heat only models
  • Active combustion control

Murelle Advanced HE

Murelle Advanced HE ErP domestic combination boilers are available in 30kW and 40kW outputs. The Advanced HE ErP is one of the most intelligent combination boilers on the market today.

The Murelle Advanced HE ErP is among the most intelligent, practical and comforting combination boilers on the market. With its three-star domestic hot water delivery, active combustion control, large user display and built-in service reminder, the Advanced are packed full of technology to effectively and efficiently deliver its users’ heating and hot water demands. This product is known for its reliability and efficiency.

Murelle Advanced HE Key Features

  • Active combustion control
  • Natural gas/LPG adaptive (no conversion kit required)
  • Compact dimensions
  • Lightweight
  • Fast, controlled hot water delivery
  • Service interval timer as standard
  • NOx Class 6

Murelle Elite HE ErP (30/35 kW)

The Elite has been the stalwart boiler of the Murelle product suite for the last decade. Recently upgraded, the Murelle Elite now has enhanced efficiency and performance. 

Both Elite combination and System T models have the capability to control solar thermal as well as both high and low heating circuits simultaneously.

Murelle Elite HE ErP Key Features

  • 10-year warranty as standard
  • Fast, controlled hot water delivery
  • Multi-zone control
  • Ultra-quiet operation
  • High modulation
  • The range includes combination and system heating and hot water solutions

Mini BF ErP

The Mini BF ErP delivers on-demand hot water for premises that have an alternative heat source. This compact instantaneous water heater has an A-energy efficiency rating and meets ErP Low NOx Class 6 requirements. This product can be installed inside or alternatively, outdoors in a partially protected area.

Mini BF ErP Key Features

  • A-energy rating
  •  Horizontal flue option
  •  LCD temperature and diagnostic display
  •  NOx Class 6

Sime boiler prices

Looking at the Sime boiler catalogues, you’ll find many options (which helps you find the right boiler for your home).

These options include; floor-standing boilers, wall-hung boilers, oil-fired units and solid-fired units, and their new range of high-efficiency gas boilers.

The different types of boilers offered by Sime and the different boiler sizes (12kW-35kW)* made their boiler prices as diverse as their boiler options, ranging from (£500-£2,300)*. Something to bear in mind though- these prices are only for the boiler unit without the installation fees.

Sime’s newest and most innovative boiler range, ‘Murelle Revolution 30,’ comes in at a higher cost of £8,620, including VAT without installation fees.

Benefits of choosing Sime boilers

Market leaders

Sime, the heating industry pioneer, has manufactured the most innovative products in the heating industry. 

They were the first company to produce a compact and efficient plate cast iron radiator in 2014, and the first to produce and launch a hybrid wall-hung that has a boiler with a pump and MEM control.

Eco-friendly boilers

Sime’s mission is to reduce its environmental performance. 

They work on reducing their carbon footprint during production processes, product design and packing. They’ve invested heavily in technologies and research to make their boilers as environmentally friendly as possible without compromising the heat output.

Variety of heating solutions

Sime offers a wide range of heating solutions; such as floor-standing boilers, wall-hung boilers, oil-fired units and solid-fired units, and their new range of high-efficiency gas boilers (Murelle boilers).

High-quality components

Sime’s boilers have great components – the parts they choose to put inside your boiler are made of the highest quality materials, they never compromise on anything that will reduce the life of Sime’s boilers and your heating experience.

Safety first!

Sime has reinvented the essence of having ample safety features with any boiler by having an adaptive gas valve that improves safety and reduces maintenance requirements and makes servicing the boiler easier.

Easy installation

Sime claims their easy to install and lightweight boilers can take as little as 10 minutes from “box to wall”. They come configured with DIN standard connections for quicker installation and a three-piece case for easier servicing and accessibility to all the parts.

Sime boiler problems and common faults

As with all appliances, over time, your boiler’s efficiency will naturally decline slightly, however, ensuring that your boiler has an annual service will help to prevent your boiler from suddenly breaking down on you, as well as expensive repair costs.

If your Sime boiler develops a fault, the corresponding fault code or error code will usually appear on your boiler. The fault code should help your heating engineer to identify and diagnose any problems with your boiler so that they can resolve them as quickly as possible.

If your boiler is displaying a fault code, our guide to Sime boiler errors and fault codes should help you find out what the code means.

Warning- Always follow the boiler manual instructions and even if you know what the fault code means, make sure that the repair is carried out by a Gas Safe Registered engineer.

Sime boiler warranty

A boiler is one of those household appliances that you don’t usually plan to buy. 

You know you need a boiler and you know you will need it servicing, but it’s not a subject that gives you a huge sense of excitement until something goes wrong!

Warranty is one of the key factors we look for when purchasing a new or replacement boiler, and can often be the deal-breaker when it comes to choosing the right boiler for you. That’s why the Sime Murelle range of boilers offers a free warranty with each and every one. 

As standard, Sime offers a two-year warranty on most of its boilers. Other boilers come with five or ten-year warranties depending on the type of boiler you choose.

To give you additional peace of mind, each Sime Murelle boiler comes with an extendable warranty which you can buy at an additional cost. The extended warranty can only be bought within 60 days of installation.

Sime after-sale support

In the unfortunate event that you have an issue with your Sime boiler, and the user manual does not help you resolve it, Sime’s customer service and technical helplines will be there to help.

Sime’s highly-trained customer support team and technical services team are available Monday to Thursday from 8.30 am to 5.00 pm and 8.30 am to 3.45 pm on Friday, please call 0345 901 1114 for assistance. Out of these hours, you can contact them by email at

Fancy an energy-efficient boiler?

If you’re looking for an energy-efficient boiler we would recommend the Worcester Bosch Greenstar 4000, the scaled-down younger sibling of the Worcester Bosch 8000 series. Sure, it doesn’t have all the bells and whistles of the 8000 series, but it’s a very reliable boiler, from a top manufacturer – which means you’ll get great build quality and aftercare!

The Viessmann Vitodens 100-W is also a great option. It’s reliable, efficient, and it comes with an impressive 10-year warranty.

If you’re shopping around for a new boiler we’d advise using the WarmZilla boiler comparison tool. Just select up to 3 boilers you want to compare and you’ll be able to compare key stats side by side to see which boiler is best for your home (and wallet)!

You can also take the WarmZilla survey, by answering a few simple questions about your home we will be able to recommend suitable boilers for your heating and hot water requirements. You can get a quote on a new boiler in just a few minutes without adding any personal details!

Here at WarmZilla, our mission is to give you all the help and support you’ll need to find the best boiler for your home at the best price, that’s why we’ve written blogs about the best combi boilers, best system boilers and best conventional boilers in 2023. So make sure to check them out!

*Average boiler prices were taken from an online heating supplier on the 25th March 2023. Prices are for the boiler alone and may be subject to change.

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