Mistral System Boilers

Mistral System Boilers – High-Efficiency Oil Boilers for Sale, Trade & Wholesale | Energy Fuel UK

Reliable System Oil Boilers Built for Efficiency and Performance. Mistral System Oil Boilers

Mistral System Boilers, available now at Energy Fuel UK, are known for their exceptional quality, energy efficiency, and dependable heating performance. Designed and manufactured in the UK, these oil-fired system boilers are perfect for homes with a sealed heating system and a separate hot water cylinder.

Mistral offers a versatile range of internal and external system boilers, including condensing and non-condensing models, ensuring a perfect fit for any property, whether it’s a rural cottage or a large modern home.

🔧 Key Features:

• Range of outputs from 15kW to 70kW – ideal for all home sizes

• Compatible with sealed central heating systems

• Available in indoor and outdoor models

• Condensing options for maximum fuel efficiency

• Strong, corrosion-resistant casing for long-term reliability

• Quiet operation and compact design

• Built-in frost protection for external units

• Low NOx emissions – eco-conscious heating

• Easy to install and maintain

🔥 Ideal For:

• Off-grid homes requiring oil heating

• Properties with high hot water demand

• Installers needing flexible sizing options

• Households upgrading to A-rated condensing system boilers

• New-builds or renovations needing efficient heating solutions

Whether you’re replacing an older boiler or installing a new heating system, Mistral System Boilers provide the perfect blend of performance, efficiency, and durability — trusted by UK homeowners and installers for over 40 years.

The Mistral Sealed System boilers are supplied with the necessary components required for direct coupling to a pre installed water heating sealed system.

The boilers are equipped with a circulating pump, expansion vessel, safety valve, pressure gauge and an automatic air vent.

The Sealed System boilers are housed in a high quality white casing which has been designed for easy location beneath a standard kitchen worktop.

The multi directional flue outlet options together with pre punched pipe entry points on both the sides and the back allow for easy and quick installation.

The removable front casing permits access for commissioning and future service. Backed by the Mistral guarantee of quality the Sealed System boiler range provides an ideal and practical heating facility for the small to mid size home.

MODELS AVAILABLE

CS1 – 15-20KW

CS2 – 20-26KW

CS3 – 26-35KW

CS4 – 35-41KW

Warranty:
Heat Exchanger – 5 years
Burner and Controls – 2 years

Latest ErP compliant models.

🛒 Available for Retail & Wholesale – Energy Fuel UK

At Energy Fuel UK, we supply Mistral oil boilers at competitive prices for homeowners, installers, and wholesale buyers. We offer a full range of models to suit any project, with expert support and fast UK-wide delivery.

Why Choose Energy Fuel UK?

• Trade & wholesale discounts

• Full range of Mistral boilers in stock

• Fast UK-wide delivery

• Expert customer service and technical advice

• Easy online ordering

👉 Browse All Oil Boilers

📞 Need Help Choosing the Right Mistral Boiler?

Our team of experts is on hand to help you choose the right Mistral system boiler for your property or project. Contact us today for friendly, knowledgeable support.

Energy Fuel UK – Your Trusted Supplier for Mistral System Boilers for Sale, Trade & Wholesale

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