High-efficiency oil heating with innovative modulating technology
The Sapphire Oil Boiler from EOGB is a fully modulating, blue flame oil-fired boiler designed to improve heating efficiency, reduce fuel consumption and lower emissions.
With advanced OpenTherm control technology and HVO compatibility, Sapphire provides a modern, future-ready solution for homes that rely on liquid fuel heating.

Why Choose a Sapphire Boiler?

15–20% Fuel Savings
Sapphire’s modulating technology can help reduce fuel consumption, with manufacturer test-house data demonstrating a 15% saving compared with a modern condensing boiler.

Fully Modulating
The boiler adjusts its output to match your heating requirements, helping to avoid unnecessary energy use.

HVO Compatible
Sapphire can be converted from kerosene to HVO bio-liquid, helping to future-proof your heating system.

25 Year Warranty
We offer a 25 year warranty on the heat exchanger, and 5 years on non serviceable parts
Reduce Your Fuel Consumption
Sapphire’s unique modulating control technology allows the boiler to adjust its output according to the heating demand of your home.
This means the boiler does not simply operate at full output and switch off repeatedly. Instead, it can modulate its output to provide the heat required more efficiently.
Manufacturer test-house data demonstrated a 15% saving in fuel usage compared with a modern condensing boiler.
The manufacturer also reports reductions of more than 100 litres per month in fuel consumption in some real-world installations. Actual savings will vary depending on the property, heating system and how the boiler is used.
Why Choose McGhie’s Plumbing And Heating

Transparent pricing
We provide clear, honest quotes with a fair breakdown of costs. No hidden fees, no vague estimates and no unpleasant surprises.

Family-run business
McGhie’s has always been a family business, and that matters. The values that come with that flow through everything we do.

Quality-first approach
Quality of workmanship has been our priority from day one. We don’t cut corners and we don’t sign off a job until we’re satisfied it’s been done properly.


Wide range of engineer skills
Our team brings together a diverse set of skills and qualifications, meaning we can take on a variety of heating and plumbing projects.

Nationwide reach
While we’re rooted in Banbury and Oxfordshire, our floor milling and air source heat pump services are available across the UK.

Gas Safe, OFTEC and MCS certified
Every job is carried out in full compliance with industry standards and regulations by fully accredited engineers.
Brands We Work With











