Annual nozzle replacement and why it’s important for oil boiler performance
Oil boilers depend on a precise system of components to deliver heat efficiently, and one of the most critical parts …
22.10.25
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4 min read
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Find out more below or use the filter system by choosing a specific category or date to organise the relevant posts for easy reading.
Annual nozzle replacement and why it’s important for oil boiler performance
Oil boilers depend on a precise system of components to deliver heat efficiently, and one of the most critical parts …
22.10.25
|
Author
4 min read
View Post
Dispelling Myths About Modulating Oil Boilers
In the world of heating technology, particularly with oil boilers, there are many misconceptions about the effectiveness and benefits of …
16.10.25
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6 min read
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Thank You for visiting EOGB at Installer Show 2025
We had a fantastic time exhibiting at Installer Show 2025 and would like to extend a heartfelt thank you to …
28.06.25
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2 min read
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EOGB Showcases Innovative Heating Solutions at Installer Show 2024
We are pleased to announce we’ll be exhibiting at this year’s Installer Show!
27.06.24
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1 min read
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Sapphire Boiler Announces Exciting Partnership with Peterborough United
We are pleased to announce we are continuing to offer Sapphire Boiler Training to all OFTEC trained technicians in Scotland …
30.05.24
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1 min read
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EOGB is delighted to be marking 30 years of business in 2023
This year marks a significant milestone for EOGB – 30 years of business.
10.08.23
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2 min read
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Approved Document L compliance with our Sapphire Boilers
The Sapphire, fully modulating stainless steel kerosene or HVO liquid fuelled boiler with OpenTherm options can be utilised to enable …
22.04.23
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4 min read
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Make Your Voice Heard and Write to Your MP
The next few weeks present a critical opportunity to shape the future of renewable liquid fuels for off-grid heating.
20.11.21
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1 min read
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The importance of Liquid Fuel Hose Replacement
With the winter season well underway, EOGB is reminding heating engineers of the importance of replacing oil hoses
02.11.21
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2 min read
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What is Opentherm
EOGB recently became a member of the OpenTherm association, and with that the Sapphire Boiler became an OpenTherm certified product.
20.10.21
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4 min read
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Bioliquid Trials for the Future of the oil Industry
Martin Cooke, Technical Director at EOGB, comments the bioliquid solution for off-grid decarbonisation
20.03.20
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2 min read
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EOGB Wins Employer of the Year at M&E Excellence Awards
Back in November, EOGB had the pleasure of attending the first M&E Excellence Awards in London.
10.01.20
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3 min read
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Pressure
Ref. Pressure:
Pump Pressure:
Nozzle
Size:
Capacity:
Act. Flow Rate:
Flow Rate:
Efficiency:
Input:
*EH/ES nozzles are not suitable for gasoil.
**Boiler efficiencies provided are approximate guides. Consult manufacturer for precise info.
***Pump pressure requirements vary depending on fuel type:
This nozzle calculator serves as a general guide for estimating outputs based on Delavan, Danfoss, and Monarch nozzles at specified pressures. Follow manufacturer instructions when available.
Different nozzles at same pressure produce different throughput. Verify pump pressure and nozzle size.
Example: 0.50 GPH EH/ES nozzle at 125 psi → ~20.12 kW. Swap to H/S/B → ~22.43 kW.
EOGB not responsible for misuse. Verify info for your application.
All figures based on OFTEC fuel densities (Kerosene 0.79kg/lt, Gasoil 0.84kg/lt). Nozzle capacities from Danfoss/Delavan.