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Excellent 4.7 out of 5
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Mistral Boiler Prices, Reviews & Compare


Mistral Boilers have over 40 years experience in producing oil fired heating boilers which is clear from their commitment to developing very efficient boilers with low emissions. Mistral offer an extensive range of oil-fired combi and system boilers that are ideal for off-grid properties looking for a high-end oil boiler.

When comparing oil boilers, it’s important to look for the output rating, efficiency, warranty and potential cost of each unit. By comparing each of these, you’ll end up with a well-rounded picture of whether the boiler will suit the heating and hot water demands of your home.

  • Output rating: Installing a boiler that’s been designed to meet the level of demand you have for central heating and hot water is essential. Otherwise, you could end up with a boiler that doesn’t heat up your home or higher energy bills. This is why looking at the output rating is essential. Measured in kilowatts (kW), the output rating shows the power of the boiler and most domestic boilers have an output of 24-42 kW although higher and lower are available.
     

  • Efficiency: As oil is a fossil fuel, it produces waste gases when burned. This means that not all of the fuel is converted into usable energy – the same goes for natural gas and LPG too. Efficiency displays how much of the fuel is used to provide central heating and hot water. Mistral boilers have been designed with efficiency in mind, with many models achieving efficiencies of over 90%.
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  • Warranty: Mistral boilers are covered by a 2 year warranty on the parts with 5 years on the heat exchanger (the part where heat is transfered to the liquid that circualtes to the central heating or hot water outlet). This warranty will see that you’re covered should a fault arise after the installation.
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  • Price: Often the deciding fator when it comes to finding a new boiler is the price. Mistral manufacture high-end oil boilers and the price reflects that. And while this might put you off, a more premium boiler is much more likely to heat your home efficiently for a longer period of time.

If you’re considering a Mistral oil boiler for your upcoming boiler replacement, our Boiler Comparison Tool will help you to find the most suitable model for your home. When you see a boiler you like the look of hit the ‘add boiler’ symbol to add it to your comparison. You can include up to 4 boilers and we recommend including your existing boiler as part of any comparisons you make.

Review Mistral combi boilers

Mistral combi boilers provide heating and hot water on demand without the need for a hot water cylinder. There’s an extensive number of models to choose between with outputs ranging from 20 kW right up to 70 kW with units designed for internal or external installation.

Boiler Model kW Efficiency Warranty Typical Price
Mistral Combi Standard CC1 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £1,920 VIEW
Mistral Combi Standard CC2 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £1,980 VIEW
Mistral Combi Standard CC3 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2,160 VIEW
Mistral Combi Plus CC4+ 41kW Oil Boiler 41kw 92% 2 yr. parts - 5 yr. heat exch £2,700 VIEW
Mistral Mega Combi Plus CMC5+ 50kW Oil Boiler 50kw 90% 2 yr. parts - 5 yr. heat exch £3,660 VIEW
Mistral Mega Combi Plus CMC7+ 68kW Oil Boiler 70kw 90% 2 yr. parts - 5 yr. heat exch £4,020 VIEW
Mistral Mega Combi Plus CMC6+ 58kW Oil Boiler 58kw 90% 5 years £3,840 VIEW
Mistral Combi Standard C1 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £1,800 VIEW
Mistral Combi Standard C2 26kW Combi Oil Boiler 26kw 87% 5 years £1,860 VIEW
Mistral Combi Standard C3 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £1,950 VIEW
Mistral Combi Standard CC4 41kW Oil Boiler 41kw 92% 2 yr. parts - 5 yr. heat exch £2,400 VIEW
Mistral Mega Combi Standard CMC6 58kW Oil Boiler 58kw 90% 2 yr. parts - 5 yr. heat exch £3,540 VIEW
Mistral Combi Standard C4 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £2,160 VIEW
Mistral Mega Combi Standard MC5 50kW Oil Boiler 50kw 86% 2 yr. parts - 5 yr. heat exch £2,880 VIEW
Mistral Mega Combi Standard MC6 58kW Oil Boiler 58kw 86% 2 yr. parts - 5 yr. heat exch £3,120 VIEW
Mistral Mega Combi Stard MC7 68kW Oil Boiler 68kw 86% 2 yr. parts - 5 yr. heat exch £3,240 VIEW
Mistral Combi Plus C1+ 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £2,100 VIEW
Mistral Combi Plus C2+ 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £2,160 VIEW
Mistral Combi Plus C3+ 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £2,250 VIEW
Mistral Combi Plus C4+ 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £2,520 VIEW
Mistral Mega Combi Plus MC5+ 50kW Oil Boiler 50kw 86% 2 yr. parts - 5 yr. heat exch £2,880 VIEW
Mistral Mega Combi Plus MC6+ 58kW Oil Boiler 58kw 86% 2 yr. parts - 5 yr. heat exch £3,420 VIEW
Mistral Mega Combi Plus MC7+ 68kW Oil Boiler 58kw 86% 2 yr. parts - 5 yr. heat exch £3,540 VIEW
Mistral Mega Combi Standard CMC7 68kW Oil Boiler 68kw 90% 2 yr. parts - 5 yr. heat exch £3,720 VIEW
Mistral Outdoor Combi Standard ODC1 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £1,980 VIEW
Mistral Outdoor Combi Standard ODC2 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £2,040 VIEW
Mistral Outdoor Combi Standard ODC3 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £2,160 VIEW
Mistral Outdoor Combi Standard ODC4 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £2,340 VIEW
Mistral Outdoor Mega Combi Standard ODMC5 50kW Oil Boiler 50kw 86% 2 yr. parts - 5 yr. heat exch £3,120 VIEW
Mistral Outdoor Mega Combi Standard ODMC6 58kW Oil Boiler 58kw 86% 2 yr. parts - 5 yr. heat exch £3,300 VIEW
Mistral Outdoor Mega Combi Standard ODMC7 68kW Oil Boiler 68kw 86% 2 yr. parts - 5 yr. heat exch £3,480 VIEW
Mistral Outdoor Combi+ ODC1 Plus 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £2,220 VIEW
Mistral Outdoor Combi Plus ODC2+ 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £2,280 VIEW
Mistral Outdoor Combi Plus ODC3+ 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £3,800 VIEW
Mistral Outdoor Combi Plus ODC4+ 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £2,580 VIEW
Mistral Outdoor Mega Combi Plus ODMC5 50kW Oil Boiler 50kw 86% 2 yr. parts - 5 yr. heat exch £3,300 VIEW
Mistral Outdoor Mega Combi Plus ODMC6 58kW Oil Boiler 58kw 86% 2 yr. parts - 5 yr. heat exch £3,540 VIEW
Mistral Outdoor Combi Standard CODC1 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £2,040 VIEW
Mistral Outdoor Combi Standard CODC2 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £2,160 VIEW
Mistral Outdoor Combi Standard CODC3 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2,700 VIEW
Mistral Outdoor Mega Combi Standard CODMC5 50kW Oil Boiler 50kw 90% 2 yr. parts - 5 yr. heat exch £3,540 VIEW
Mistral Outdoor Mega Combi Standard CODMC6 58kW Oil Boiler 58kw 90% 2 yr. parts - 5 yr. heat exch £3,870 VIEW
Mistral Outdoor Mega Combi Standard CODMC7 68kW Oil Boiler 68kw 90% 2 yr. parts - 5 yr. heat exch £4,176 VIEW
Mistral Outdoor Combi Plus CODC1+ 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £2,460 VIEW
Mistral Outdoor Combi Plus CODC2+ 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £2,580 VIEW
Mistral Outdoor Combi Plus CODC3+ 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2,700 VIEW
Mistral Outdoor Combi Plus CODC4+ 41kW Oil Boiler 41kw 92% 2 yr. parts - 5 yr. heat exch £3,000 VIEW
Mistral Outdoor Mega Combi Plus CODMC5 50kW Oil Boiler 50kw 90% 2 yr. parts - 5 yr. heat exch £3,960 VIEW
Mistral Outdoor Mega Combi Plus CODMC6 58kW Oil Boiler 58kw 90% 2 yr. parts - 5 yr. heat exch £4,290 VIEW
Mistral Outdoor Mega Combi Plus CODMC7 70kW Oil Boiler 70kw 90% 2 yr. parts - 5 yr. heat exch £4,596 VIEW
Mistral Mega Combi Standard CMC5 50kW Oil Boiler 50kw 90% 2 yr. parts - 5 yr. heat exch £3,360 VIEW
Mistral Combi Standard CC1 plus 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £2,220 VIEW
Mistral Combi Standard CC2 plus 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £2,460 VIEW
Mistral Combi Standard CC3 plus 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2,460 VIEW
Mistral Outdoor Combi Standard CODC4 41kW Oil Boiler 41kw 92% 2 yr. parts - 5 yr. heat exch £2,580 VIEW
Mistral Outdoor Sealed System OD SS3 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £1,710 VIEW

Compare the costs of Mistral system boilers

A Mistral system boiler needs to be installed alongside a hot water cylinder, which is where domestic hot water is stored until a hot water tap is turned on. Rather than providing instant hot water, this means that they’re able to meet a higher demand for domestic hot water than a combi boiler. Mistral system boilers are available as models designed for installation within the home or in an outdoor garden area.

Boiler Model kW Efficiency Warranty Typical Price
Mistral Sealed System CS1 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £2,300 VIEW
Mistral Sealed System CS2 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £2,370 VIEW
Mistral Sealed System S1 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £1,320 VIEW
Mistral Sealed System S2 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £1,380 VIEW
Mistral Sealed System S3 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £1,500 VIEW
Mistral Sealed System S4 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £1,680 VIEW
Mistral Outdoor Sealed System OD SS1 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £1,500 VIEW
Mistral Outdoor Sealed System OD SS2 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £1,590 VIEW
Mistral Outdoor Sealed System OD SS4 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £1,920 VIEW
Mistral Sealed System CS3 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2,700 VIEW
Mistral Sealed System CS4 41kW Oil Boiler 41kw 93% 2 yr. parts - 5 yr. heat exch £3,200 VIEW
Mistral Outdoor Sealed System COD SS1 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £1,605 VIEW
Mistral Outdoor Sealed System COD SS2 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £1,680 VIEW
Mistral Outdoor Sealed System COD SS3 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2,040 VIEW
Mistral Outdoor Sealed System COD SS4 41kW Oil Boiler 41kw 90% 2 yr. parts - 5 yr. heat exch £2,160 VIEW

If you’re looking for an oil boiler replacement you won’t find a wider range than Mistral’s with options for indoor, outdoor and boilerhouse installation to suit every type of home. Find out exactly how much it will cost to get a new Mistral boiler installed by sending us an enquiry today. You’ll get free Mistral boiler installation quotes from up to 3 Gas Safe engineers will be in touch to provide competitively priced , free and no-obligation quotes.

Mistral combi boiler range

Mistral Outdoor Combi Standard CC1 oil boilerThe popularity of Combi boilers continues to rise, and for good reason. They are extremely efficient, and can heat your room and hot water at a very impressive rate.

Oil combi boilers are no different, and Mistral serve this range very well with 4 different offerings: Combi Standard, Mega Combi Standard, Combi Plus, Mega Combi Plus. These are all available in both condensing and non-condensing options and all can be used in tandem operations.

See below for a more comprehensive list of benefits you will gain with Mistral’s combi range of oil-fire boilers.

Benefits of a Mistral combi boiler

  • Both condensing and non-condensing models available
  • Plastic flue range up to 41 kW condensing only
  • Conventional or balanced flue option
  • Front servicing
  • 15 – 70 kW
  • Available as outdoor model
  • Can be used in tandem operations
  • Fits beneath work surface up to 41 kW
  • High efficiency rating
  • High quality casing
  • Pre-punched pipe access points
  • Multi directional flue outlet

Prices will differ depending on the kW output your home or business requires. For smaller premises, the Combi Standard CC1 boiler from Mistral would certainly meet your requirements and more with 15 – 20 kW output.

If you’re looking for a real work-horse, then the Mistral Mega Combi MC7 Plus will exceed your heating requirements, but will obviously be slightly more pricey. As with all new boiler purchases, you will have to budget approx. £500 – £1,000 for the installation costs of a professional Gas Safe engineer. So make sure you Get quotes for a new Mistral boiler.

Mistral Oil-fired Sealed System Boiler Range & Prices

Mistral Sealed System Oil BoilerThe Mistral system range of boilers are equipped with the following as standard:

  • a circulating pump
  • 12 litre expansion vessel
  • safety valve
  • pressure gauge
  • automatic air vent

Added to that, the Mistral sealed system boilers are all supplied with all the required components for quick and direct coupling to a pre-installed water heating sealed system. The multi-directional flue outlet and compact size mean that installation will be pretty quick and painless.

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Benefits of a Mistral system boiler

  • 15 – 41 kW
  • High quality casing
  • Fits beneath work surface up to 41 kW
  • High efficiency rating
  • Front servicing
  • Only 410mm wide
  • Plastic flue range up to 41 kW condensing only
  • Pre punched pipe access points
  • Can be used in tandem operations
  • Conventional or balanced flue option
  • Available as outdoor model
  • Non condensing model is available as well
  • Multi directional flue outlet

Mistral system boilers are available in both condensing and non-condensing models, both of which have 4 different options and the pricing of these can be seen accordingly. As you might expect, the installation costs of a system boiler will be slightly higher than a combi boiler as there are more moving parts.

However, if you are replacing like for like, then even these can be lower than you would expect, and will often come in at the £700 – £900 range.

Again, be sure to get at least 3 quotes when replacing your oil system boiler so that you can make a fair comparison and pick the right quote for you. Get quotes for a new Mistral boiler.


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Mistral Boiler Service

It’s important to keep your boiler in the best possible condition with an annual boiler service by a professional engineer. This will ensure the boiler can operate as efficiently as possible, keeping heating bills to a minimum, and that there are no potential safety issues to be concerned about. A boiler service is also a great way to catch and fix small repairs before they have the chance to worsen over time and cause an expensive breakdown. Find out what’s involved in an annual boiler service, why it’s so important, the benefits and how much they cost in Mistral Boiler Service.

Mistral Boiler Warranty

Every boiler manufacturer offers a standard warranty with their boilers which last between 1-10 years. The warranty is your insurance policy and means if a fault develops the manufacturer will resolve it within a specified time frame. Some warranties include both parts and labour while others may only cover parts. The most important thing to remember is to get your boiler serviced by an OFTEC registered engineer every year as failing to do so is likely to invalidate your warranty. For more detail about this brand’s warranty (including the small print) take a look at Mistral Boiler Warranty.

Mistral Boiler Repair Advice

Even the highest quality boiler can develop faults and problems as they age. Some are minor issues you may be able to handle yourself but most will need an OFTEC registered engineer to diagnose and repair the problem. To find out if there are any common problems associated with this manufacturer you can read our guide to Mistral Boiler Repairs & Common Mistral Boiler Problems.


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Mistral Error Codes

Error codes may appear on your boiler’s display; it’s your boiler’s way of telling you that something is wrong. Each manufacturer uses a different coding system to help an engineer to diagnose a fault. In some cases it may be a simple issue such as low pressure which you can adjust yourself but more technical faults will certainly need a professional. We’ve put together a list of error codes for all Mistral Boilers to help you understand what’s wrong before you contact an engineer.

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