Hi, I am Szymon Czaban

I am your local gas and heat pump engineer. I am based in Surrey (Frimley Green, GU16) and I serve Surrey, West London, and surrounding areas.

I have years of experience in the installation, repair, and maintenance of domestic plumbing and heating systems. I specialize in super efficient central heating and hot water installation using: gas condensing boilers, air source heat pumps, unvented and vented hot water cylinders, properly calculated and sized pipework and emitters for radiators, and underfloor heating.

Please explore this website for more information on how I can help you design, install, maintain, or improve your heating and hot water system.

Latest videos

31 October 2021

How to power flush central heating system

31 October 2021

Open vent system to combi boiler conversion with Intgeras Rapid 32 gas boiler

31 October 2021

Central heating filters explained

24 August 2021

Moving combination gas boiler from a kitchen to a cellar – what is involved.

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Latest articles

03 January 2025

Design Files for Vaillant Arotherm Heat Pump Installation

Below, you will find my design files and calculations for the installation of a Vaillant Arotherm Plus heat pump that you can see in my YouTube video: “Design Heating System Like A Pro”

20 November 2022

Vaillant Eco Tec Plus system boiler hot water priority diagrams

This are diagrams for domestic hot hot water priority set up using: – Vaillant system boilers – Vaillant SensoComfort controls with VR 71 wiring ceters – System with hot water cylinder, radiators and UFH

04 January 2022

Vaillant F.75 error code – full boiler repair

This Vaillant boiler has been suffering from error codes F.75 and low pressure on the pressure gauge. There was also a visible leak to the right-hand side of the boiler. When I opened the boiler, I found a source of the leak – it as scaled Automatic Air Vent on the boiler pump. First call […]

04 October 2021

Ideal Logic intermittent ‘ignition lockout’ message, L2 boiler fault, error code

Ideal Logic combi boiler is one of the most popular combination boilers installed in the UK today. There are thousands of those boilers installed in homes in the UK. One of the most common errors on these boilers is: Ignition Lockout / L2 error code – Ideal Logic / Ideal Independent / Ideal Classic Depending […]

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